COMP Medical Group
Occupational Health • Ontario, CA • 5 (Riverside, City of Industry, Corona, Ontario, Moreno Valley, San Bernardino) locations
Information from public sources; not independently verified. Confirm hours, insurance and appointment availability with the clinic.
Last gathered July 10, 2026. How our information is sourced · Report incorrect information
About
Central Occupational Medicine Providers (COMP) in Riverside, CA offers occupational health services including injury treatment, pre-employment physicals, reasonable suspicion testing, onsite services, and case management. The clinic operates 24 hours, 7 days a week and brings medical services directly to workplaces to minimize downtime.
Services Offered
Team
Insurance & Payment
Not published.
Languages Spoken
Not published.
FAQs
What services are offered?
Injury Treatment, Pre-Employment, Reasonable Suspicion, Onsite Services, Case Management.
Do you offer onsite services at workplaces?
Yes, Medical services brought directly to your workplace to minimize downtime.
What are the operating hours?
24 hours, 7 days a week.
Photos
Photos published by COMP Medical Group showing the occupational health practice in Ontario, CA.
What Patients Say
Overall sentiment across review platforms: negative
- Trucker Guide (Ontario location): 3.5 out of 5 stars (102 reviews)
- Trucker Guide (San Bernardino location): 2.5 out of 5 stars (89 reviews)
- Yelp (aggregate referenced): 1.5 out of 5 stars (53 reviews)
Patients praise
- Some individual staff members described as helpful or amazing
- Processes described as simple by some patients when wait times were not an issue
Common complaints
- Extremely long wait times for appointments and walk-ins
- Unprofessional staff behavior (rude, loud, disengaged)
- Poor clinic organization and communication with patients
- Concerns regarding the efficiency of occupational/pre-employment testing services
"0 stars if I could. Unprofessional and 3 hour wait time just to pee in a cup it's unbelievable. DO NOT COME HERE IF YOU WANT TO WASTE YOUR WHOLE DAY."
- Yelp user review"Absolutely terrible. Doctor decides to go to lunch whenever he wants and it doesn’t matter if you have appointment or not. Appointment was at 2 and dr is still at lunch."
- Trucker Guide user review"I would've left 5 stars but the lady's at the front desk were very annoying, laughing & joking around being extra loud for no reason. UNPROFESSIONAL. Made me feel very uncomfortable."
- Trucker Guide user reviewSynthesized from public review platforms as of Jul 10, 2026 - sources: [1][2][3][4].
In the News
- WMC London Occupational Health Clinic - Workplace Medical - Feb 17, 2026
- North York General Welcomes New Centre of Excellence in ... - Apr 7, 2026
- Bulletin 260305 — New OHIP Billing Specialty – Occupational Medicine | OHIP INFOBulletins 2026 | ontario.ca - Apr 1, 2026
- Workplace Medical - London Occupational Health Clinic - Apr 10, 2026
- MCI Occupational Health Services - MCI The Doctor's Office ™ - Oct 21, 2025
Information sourced from the clinic's website as of July 10, 2026.
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