Mobile Clinic Units for Employers | On-Site Occupational Health Deployed to Your Worksite
A construction crew 60 miles from Houston cannot pause a project while workers drive to a clinic for pre-employment clearance. A post-accident DOT drug test does not wait for a next-day appointment. A confined space entry does not begin without current OSHA medical clearance. Occucare’s mobile clinic units bring a physician-supervised, fully-equipped occupational health facility directly to your job site – pre-employment physicals, acute injury triage, OSHA compliance exams, and drug testing completed on-site, on your timeline, without pulling workers off the job.
Board-Certified Occupational Medicine Physicians
93% Onsite Injury Management Rate
OSHA & DOT Compliant Protocols
Serving Texas Employers Since 1980
100,000+ Workers Under Care
Stop Losing Production Time to Off-Site Clinic Visits.
Clinic Hours
- Monday - Friday 7:30 AM - 4:30 PM CST
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What Is a Mobile Occupational Health Clinic Unit?
A mobile occupational health clinic unit is a fully-equipped, physician-supervised medical facility deployed directly to an employer’s job site, staging area, or remote project location. It is not a vehicle for purchase. It is not a community health van providing free care to uninsured patients. It is a contracted clinical service – staffed by trained occupational health personnel, operating under board-certified physician oversight, and integrated with your injury management and compliance reporting program.
The distinction matters because the SERP for “mobile clinic units” is dominated by community health organizations and vehicle manufacturers. Neither serves employers. What Occucare deploys is fundamentally different: a physician-governed occupational health program that happens to arrive on wheels.
Occucare’s mobile clinic fleet includes a 53-foot clinic 18-wheeler configured with private exam rooms, a laboratory workstation, and clinical support areas capable of processing large crews in a single deployment. The 35-foot customizable trailer can be configured for the specific service mix your project requires. Each deployment is staffed under the oversight of Occucare’s Medical Direction team – the same physician-governed model that produces a 93% onsite injury management rate across our platform operations.
The scope of services a mobile clinic unit can deliver – acute injury triage, pre-employment physicals, OSHA surveillance exams, DOT drug testing, respirator fit testing, PFT – is not what a testing van or specimen collection service can replicate. The difference is physician oversight at the point of care. That oversight is what determines whether an injury is a recordable incident or a first-aid case, whether a worker is cleared for confined space entry, and whether a post-accident drug test holds up under DOT chain-of-custody scrutiny.
Who This Is For
Occucare’s mobile clinic units are built for employers where fixed-clinic access creates compliance risk, production delays, or recordability exposure:
General contractors and construction firms managing large or remote project sites where transporting workers off-site for pre-employment clearance, surveillance exams, or post-injury triage creates scheduling disruptions and chain-of-custody risk for DOT testing.
Oil and gas and petrochemical operators at upstream, midstream, and refinery locations where the nearest occupational health clinic is hours from the job site and OSHA or DOT compliance cannot wait for the next available appointment.
Industrial manufacturers and process facilities with annual OSHA medical surveillance obligations – hearing conservation, respiratory protection, hazardous substance exposure monitoring – requiring on-site deployment to meet regulatory deadlines without disrupting production schedules.
Pipeline and infrastructure contractors working on linear project corridors where the worksite moves continuously and a fixed clinic relationship is operationally impractical.
Maritime and offshore staging operators requiring pre-mobilization screening for entire rotating crews – DOT physicals, drug screens, and OSHA fit testing – before workers deploy to offshore assets.
High-volume hiring employers in construction, energy, and industrial sectors who need to screen 50 to 150 incoming workers within a tight project mobilization window that fixed clinics cannot accommodate on the required timeline.
If your pre-employment clearances delay project starts, if post-injury triage defaults to the nearest ER, if OSHA surveillance deadlines are tracked on a spreadsheet with no physician governing the program, and if your DOT post-accident testing creates chain-of-custody gaps because workers are self-directing to collection sites – this service is built for your operation.
Eliminate Pre-Mobilization Clearance Delays. Protect Your EMR at the Point of Injury. Meet OSHA Pre-Entry Requirements on Your Schedule.
What Happens Without On-Site Mobile Clinic Capability
When employers rely on fixed clinics for occupational health services at remote or active job sites, the operational and financial consequences are predictable and compounding.
Acute Injuries Default to ER Instead of Occupational Triage - and Every ER Visit Is Recordable
When a worker is injured on a remote job site and there is no on-site triage capability, the default is the emergency room. That default is expensive and almost always produces a recordable incident. An ER physician has no occupational medicine training, no understanding of OSHA’s first-aid definition, and no knowledge of your modified-duty capabilities. They issue a prescription and a work restriction – both of which trigger OSHA 300 log recordability – on injuries that a board-certified occupational medicine physician would routinely manage as first aid on-site. One unnecessary recordable incident adds three years of EMR elevation and raises workers’ compensation premiums accordingly.
Pre-Mobilization Clearance Bottlenecks Delay Project Start Dates
A fixed clinic scheduling 15 to 20 appointments per day cannot process 80 to 150 incoming crew members within a 10-day mobilization window. Pre-employment physicals, drug screens, and OSHA compliance exams require separate appointments at facilities that may not coordinate with each other. Every worker who cannot be cleared before Day 1 forces a crew replacement, delays zone-specific work, or puts the project manager in the position of starting work with uncleared personnel. Occucare deploys a mobile clinic unit to the staging area and clears the entire incoming crew in a single coordinated event – pre-employment physical, drug screen, and any required surveillance exam completed before workers set foot on the job site.
OSHA Pre-Entry Requirements Stop Work When Clearance Is Missing
Before workers can enter a confined space, don a tight-fitting respirator, or begin work under a respiratory protection program, current medical clearance from a physician is required under 29 CFR 1910.134 and 29 CFR 1910.146. When that clearance depends on a fixed clinic’s next available appointment, the project timeline and the regulatory deadline are on a collision course. Employers who proceed without current clearances face OSHA enforcement exposure. Employers who wait for clinic availability face production delays. Mobile clinic deployment eliminates the collision by bringing the physician-supervised evaluation to the staging area on the employer’s schedule, not the clinic’s.
DOT Post-Accident Testing Windows Close Before Workers Reach a Collection Site
DOT-regulated employers – construction equipment operators, commercial vehicle drivers, pipeline contractors – face defined testing windows for post-accident drug and alcohol testing under 49 CFR Part 40: breath alcohol within two hours, urine collection within eight. When workers self-direct to a collection site following an incident, the chain of custody is compromised before the specimen is collected. An invalidated post-accident test exposes the employer to federal non-compliance, regardless of whether the worker tested clean. Occucare dispatches a mobile unit to the incident location so the collection is completed on-site, within the window, under documented chain of custody, with certified collectors.
OSHA Surveillance Gaps Create Penalty Exposure and Long-Tail Disease Liability
Offshore and industrial workers face multiple overlapping OSHA surveillance requirements – noise (29 CFR 1910.95), benzene (1910.1028), silica (1926.1153), asbestos (1910.1001), lead (1910.1025). Without a physician managing the surveillance calendar, baseline exams are never established, periodic screenings are missed, and records are incomplete. OSHA’s current maximum penalty for a serious surveillance violation is $16,550 per violation per employee. A contractor with 50 workers missing benzene surveillance faces $827,500 in potential penalties from a single inspection – before the long-tail occupational disease liability that follows untracked exposures over 15 to 20 years.
No Coordinating Provider Means No System
The core problem with fragmented clinic relationships is not any single service gap. It is the absence of a physician-governed system connecting pre-employment clearance, surveillance, injury triage, and compliance documentation. Without that system, every clinical decision is made in isolation – by a different provider, against different standards, producing records that do not connect to your OSHA 300 log, your EMR trajectory, or your workers’ compensation program.
Our Mobile Clinic Unit Services
Occucare’s mobile clinic units deliver four core service lines in a single on-site deployment, each governed by board-certified occupational medicine physicians. Services can be requested independently or combined in a single worksite visit.
Acute Injury Triage and First-Response Care
On-site injury evaluation, wound care, and clinical disposition under occupational medicine physician oversight – delivered at your project site before a worker ever reaches an emergency room. The distinction between a first-aid case and a recordable incident is almost always made at the point of triage. When that decision is made by an ER physician, the default is recordable. When it is made by Occucare’s occupational medicine team, the decision is governed by OSHA’s first-aid definition, your modified-duty program, and 40 years of occupational clinical experience.
Occucare’s Medical Direction clients maintain a 93% onsite injury management rate – 93 out of every 100 workplace injuries resolved without ER escalation, medevac, or recordable classification. For employers where a single unnecessary recordable incident elevates the EMR for 36 months, that rate has direct and measurable financial impact.
Stop Unnecessary Recordables at the Point of Triage.
Employer-directed medical screenings completed on-site before workers are cleared for duty – occupational history review, physical examination, task-specific fitness assessment, and documentation delivered directly to your EHS team. For large-volume mobilizations, Occucare coordinates worker flow so that incoming crew members complete their pre-employment physical, drug screen, and any applicable surveillance baseline in a single session at the staging area.
For employers with specialized roles – confined space entry, respirator use, HAZWOPER operations, safety-critical tasks – Occucare’s occupational medicine physicians perform role-specific fitness-to-work evaluations against OSHA standards and operator-defined protocols, not generic urgent care screening criteria.
DOT and Non-DOT Drug and Alcohol Testing
Certified chain-of-custody drug and alcohol collections conducted at your worksite by trained technicians, with MRO (Medical Review Officer) review before results are reported to the employer. Occucare mobile units conduct post-accident, random, pre-employment, reasonable suspicion, and return-to-duty testing in compliance with 49 CFR Part 40 – on-site, within regulatory windows, with documentation that is legally defensible.
For DOT-regulated employers, the post-accident testing window is non-negotiable and the chain-of-custody gap from self-directed collection is a compliance liability. Mobile deployment eliminates both problems. For non-DOT employers building a drug-free workplace program, mobile deployment ensures that random testing is conducted on-site without the advance notice that defeats the purpose of unannounced screening.
OSHA Medical Surveillance and Compliance Exams
Respirator medical evaluations (29 CFR 1910.134 Appendix C), confined space medical clearance (29 CFR 1910.146), pulmonary function testing (spirometry/PFT), audiometric exams under OSHA’s Hearing Conservation Standard (29 CFR 1910.95), and hazard-specific baseline and periodic surveillance exams – delivered on-site via Occucare’s mobile clinic fleet, including our 8-booth audio trailer for group audiometric testing.
For employers with active respiratory protection programs, respirator fit testing (quantitative and qualitative) is completed in the same deployment as the OSHA medical evaluation, so workers receive both required clearances in a single site visit. For employers managing confined space programs, medical clearance is completed at the staging area before the entry date – not after a scheduling delay that forces the project to proceed without documentation.
Fragmented Clinic Visits vs. Occucare Mobile Clinic Deployment
This is the operational difference between relying on fixed off-site clinics and deploying Occucare’s mobile clinic unit to your worksite:
| Factor | Fixed Off-Site Clinic | Occucare Mobile Clinic Unit |
| Injury triage decision | Default to ER – no occ med physician in chain | Physician-governed: 93% managed on-site without recordable |
| OSHA recordable classification | ER physician defaults to recordable – no occ med training | Board-certified physician applies first-aid vs. recordable determination at point of injury |
| Pre-employment clearance | Multiple visits, multiple providers, 1–3 week delays | Single on-site session – physical, drug screen, surveillance baseline completed in one visit |
| DOT post-accident testing | Worker self-directs to clinic – chain-of-custody gap | Certified collector dispatched to incident site – window met, chain of custody intact |
| OSHA surveillance management | Missed screenings, incomplete records, no physician review | Physician-managed program with proactive scheduling and OSHA 300 log integration |
| Crew mobilization timing | Clearance bottleneck delays project start dates | Staging area deployment clears entire crew before Day 1 |
| Workers’ comp EMR impact | Rising – unmanaged injuries inflate premiums for 36 months | Controlled – conservative on-site management protects EMR |
| Documentation | Fragmented records across multiple providers | Unified records delivered directly to EHS team, audit-ready |
Industries We Serve
Why Employers Choose Occucare Mobile Clinic Units - The Physician Governance Difference
Most mobile testing services are collection sites on wheels – a technician, a specimen cup, and a chain-of-custody form. Occucare’s mobile clinic units operate under a fundamentally different model.
Board-certified occupational medicine physicians govern every deployment.
Clinical decisions made in our mobile units are physician-supervised – not technician judgment calls. Injury triage, OSHA recordability determination, fitness-to-work assessment, and surveillance result interpretation are all governed by occupational medicine physicians who understand your regulatory obligations and your operational context.
The 93% onsite injury management rate is the result of physician governance.
When an occupational medicine physician is in the triage decision chain, injuries are managed at the appropriate level of care – not escalated to the ER by default. That rate means 93 out of every 100 workplace injuries are resolved without ER escalation, recordable classification, or elevated EMR impact. For employers where workers’ comp premiums reflect three years of unmanaged injury escalation, the financial impact is direct and measurable.
Integrated case management from injury to return-to-work.
When a mobile clinic deployment identifies an injury requiring follow-up, that case enters Occucare’s active case management system immediately. It does not disappear between the job site and a clinic with no relationship to your operation. Your Medical Director governs the case from first triage to return-to-work clearance.
Single-deployment clearance eliminates the bottleneck.
Pre-employment physical, DOT drug screen, respirator medical evaluation, fit test, and surveillance baseline – completed in one coordinated on-site session. No referrals. No multiple appointments. No scheduling delays that push back your project start date.
Consistent clinical standards across all Texas project sites.
For employers running multiple simultaneous projects, Occucare coordinates mobile deployments across all locations under a unified occupational medicine oversight model – same protocols, same documentation standards, one reporting system. The fragmented records problem from using different clinics at different sites disappears.
Established 1980. 100,000+ workers under care.
Occucare has been delivering physician-governed occupational health programs to industrial, energy, and construction employers for over 40 years. The clinical standards, the regulatory expertise, and the operational model are not assembled for the occasion – they are the product of four decades of occupational medicine practice.
The Financial Case - What Fragmented Mobile Medical Costs You
| Scenario | Estimated Cost |
| Single ER visit for on-site injury (with transport) | $3,000–$15,000 per incident |
| OSHA recordable incident (direct + indirect costs) | $40,000–$150,000 per incident |
| EMR elevation from recordable – increased WC premiums | 36 months of elevated costs |
| Pre-mobilization clearance delay – crew replacement | $3,000–$15,000 per worker |
| Delayed project start from clearance bottleneck (50-worker crew) | $25,000–$150,000+ in delayed production |
| DOT post-accident chain-of-custody invalidation | Federal non-compliance exposure |
| OSHA surveillance violation penalty | $16,550+ per violation per employee |
| Undefended occupational disease claim (benzene / noise / asbestos) | $500,000–$5,000,000+ |
The math for a mid-size Texas contractor: An employer who converts two unnecessary ER visits per month to on-site first-aid management – avoiding two OSHA recordables annually – saves $80,000 to $300,000 in direct incident costs and prevents 36 months of elevated workers’ compensation premiums. Add the production time recovered from pre-mobilization clearance handled at the staging area instead of a clinic 40 miles away, and mobile clinic deployment generates a measurable return within the first project cycle.
Occucare’s model is designed to prevent these costs at every decision point. Physician-governed triage prevents unnecessary ER escalation. Single-visit staging area clearance prevents mobilization delays. Structured OSHA surveillance prevents penalty exposure. The 93% onsite management rate means that for every 100 injuries, 93 are resolved without leaving the worksite – no ER, no recordable, no medevac.
How It Works - From Request to Deployment
Step 1
Scope and Schedule
Contact Occucare with your project location, the services required, your workforce size, and your timeline. We confirm unit availability, fleet configuration, and clinical staffing for your specific scope. For DOT-regulated deployments, we confirm certified collector availability and chain-of-custody protocols in advance. For OSHA surveillance deployments, we review the applicable standards and confirm the exam panel against your regulatory obligations before arrival.
Step 2
Pre-Deployment Protocol Coordination
Your assigned occupational health team reviews your workforce hazard profile, your applicable OSHA surveillance requirements, and any operator-specific fitness-to-work standards before the unit deploys. For large-volume mobilization events, we coordinate worker flow sequences so the entire crew moves through physical, drug screen, and surveillance exam efficiently – most workers complete a combined screening in under 45 minutes.
Step 3
On-Site Deployment to Your Worksite
 Our unit arrives at your project location, staging area, or laydown yard on the scheduled date. Clinical staff conduct all services under physician oversight. For acute injury deployments, the Medical Director is available by direct contact throughout the deployment for real-time clinical guidance.
Step 4
Documentation Delivered to Your Safety Team
Medical clearances, drug test results (after MRO review for DOT), OSHA surveillance records, and injury triage documentation are delivered directly to your EHS director or HR manager. All records are maintained in compliance with applicable HIPAA and OSHA documentation requirements and formatted for integration with your OSHA 300 log and workers’ compensation reporting.
Mobile Clinic Units - Frequently Asked Questions
A mobile occupational health clinic unit is a contracted, physician-supervised clinical service deployed to an employer's worksite to deliver compliance-grade occupational health care. Unlike community health vans - which serve uninsured patients in underserved areas - Occucare's mobile clinic units are built entirely around employer regulatory requirements: DOT chain-of-custody drug testing, OSHA pre-entry medical clearances, physician-governed injury triage, and surveillance program management. The clinical staff, protocols, and documentation are designed for B2B occupational health, not patient access.
A single deployment can include acute injury triage and first-response care, pre-employment and post-offer physicals, DOT and non-DOT drug and alcohol testing, respirator fit testing (quantitative and qualitative), pulmonary function tests (PFT/spirometry), audiometric exams, OSHA medical evaluations (Appendix C for respirator programs), confined space medical clearance, and hazard-specific baseline surveillance screenings. Multiple services are commonly combined during pre-mobilization events so incoming workers move through a complete clearance sequence in one session.
The EMR is directly affected by how injuries are classified at the point of care. An injury treated by an ER physician is almost always classified as a recordable incident - prescription medication or a work restriction is the default regardless of clinical necessity. The same injury triaged by Occucare's occupational medicine team on-site can frequently be managed as first aid, documented correctly under OSHA 300 log criteria, and returned to modified duty the same day. Occucare's Medical Direction clients maintain a 93% onsite injury management rate - meaning 93 out of 100 injuries are resolved without ER escalation, recordable classification, or elevated EMR impact.
Yes. Medical evaluations required under 29 CFR 1910.134 (Respiratory Protection) and 29 CFR 1910.146 (Confined Space Entry) are completed on-site by Occucare's occupational medicine physicians and documented in compliance with the applicable standard. Respirator fit testing is performed in the same deployment as the Appendix C medical evaluation so workers receive both clearances in a single site visit. Workers can be cleared for confined space entry, respirator use, and SCBA operations before the project begins, without requiring a clinic trip.
For most service configurations, same-day or next-day deployment is available for Houston-area job sites. Post-accident DOT testing deployments are treated as urgent and prioritized for same-day dispatch within the regulatory testing window. For large-scale pre-employment screening events - 50 or more workers - we recommend scheduling 3 to 5 business days in advance to confirm fleet configuration, clinical staffing, and site logistics.
Yes. Occucare deploys mobile clinic units to project sites across Texas, including remote upstream oil and gas locations, pipeline project corridors, and construction sites in rural areas. We also support multi-site employers with coordinated deployment scheduling across multiple active projects. Contact us with your location and scope and we will confirm coverage and logistics for your specific deployment.
Several OSHA standards create employer medical surveillance obligations that mobile clinic units can satisfy on-site: the Respiratory Protection standard (29 CFR 1910.134) requires physician medical evaluation before employees wear tight-fitting respirators; the Confined Space Entry standard (29 CFR 1910.146) requires medical clearance for authorized entrants; and OSHA hazard-specific standards for noise (1910.95), benzene (1910.1028), silica (1926.1153), asbestos (1910.1001), and lead (1910.1025) require baseline and periodic physician-supervised surveillance exams. Mobile deployment allows employers to meet all of these obligations at the project site, on the compliance deadline, without removing workers from the job for extended periods.
Related Services
Occucare’s mobile clinic units integrate with our broader occupational health platform. These services connect directly with mobile clinic deployments:
Mobile Drug Testing Units
DOT and non-DOT certified drug and alcohol testing deployed to your worksite. Post-accident, random, pre-employment, and return-to-duty collections with full chain-of-custody and MRO review.
Mobile Testing Units
Respirator fit testing, PFT/spirometry, audiometric exams, and pre-placement screening deployed to your staging area or facility. OSHA compliance delivered on your project timeline.
Corporate Medical Direction
Ongoing physician-led oversight of your entire workforce health program. Your Medical Director governs injury triage, fitness-to-work decisions, surveillance program management, and compliance reporting across all locations - not just mobile deployments.
Workplace Injury Case Management
Active case management from first triage to full return-to-work. When a mobile clinic deployment identifies a compensable injury, it enters our case management system immediately. Nothing falls through the gap between the job site and the clinic.
Offshore Medical Services
For operators managing Gulf of Mexico and international assets, Occucare's offshore medical program delivers OEUK-compliant clearance, surveillance, and physician governance for rotating offshore crews.
Occupational Health for Construction
Our complete occupational health program for general contractors, subcontractors, and industrial construction employers - from pre-employment through injury management and return-to-work.
Request a Mobile Clinic Deployment
Stop absorbing production losses, recordable incidents, and compliance penalties because your job site is 40 miles from the nearest occupational health clinic. Occucare’s mobile clinic units bring physician-governed, OSHA and DOT compliant occupational health directly to your project location – pre-employment clearance, acute injury triage, drug testing, and OSHA surveillance completed on-site, on your schedule, under the same clinical standards that produce a 93% onsite injury management rate across our platform.