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About

Summary: United Medical Doctors is a Southern California-based, privately held multi-specialty medical and surgical group with 250+ providers, 50+ specialties, and 80+ locations. Headquartered in Murrieta, CA, the organization aims to deliver high-quality, patient-centered care across the healthcare journey and operates across the United States (primarily Southern California) and New Zealand. Notable details include extensive specialty coverage, an urgent care division, and leadership across clinical, learning, and operations roles. Contact: (833) 863-3627. Note: The provided information lists United Medical Doctors as a broad multi-specialty network, but does not mention an Oceanside-specific occupational health facility. If you’re seeking United Occupational Health services in Oceanside, this page confirms the broader United Medical Doctors network in Southern California but does not confirm an Oceanside location.

Clinic Type

Occupational Medicine

Address

6125 Paseo Del Norte, Ste. 130, Carlsbad, CA 92024; Temecula: 31150 Temecula Pkwy., Ste. 101, Temecula, CA 92592; La Jolla: 4130 La Jolla Village Drive, #200, La Jolla, CA 92037; Kearny Mesa: 5643 Copley Dr., Ste. 101, San Diego, CA 92111; Newport Beach: 20072 SW Birch St., Ste. 100, Newport Beach, CA 92660

Phone

Ph: (442) 244-8347; Temecula location phone: (951) 383-2618; La Jolla: (858) 737-1448; Kearny Mesa: (858) 737-1452; Newport Beach: (949) 757-1150

Email

info@uunursing.com

Opening Hours

Not published — contact the clinic to confirm hours.

Emergency Care

911 in case of medical emergency

Services Offered

  • Occupational health services
  • pre-employment physicals
  • DOT and non-DOT drug and alcohol testing
  • work-related injury care
  • employer-mandated physicals
  • return-to-work evaluations
  • respirator fit testing
  • vaccinations
  • TB testing
  • health surveillance programs
  • on-site imaging
  • urgent care
  • in-house imaging centers
  • lab & pathology centers
  • physical therapy
  • outpatient surgical centers
  • medical & surgical specialists

Team

  • Clarence Lee, MD — MD
  • James Rhee, MD — MD
  • David Ham, MD — MD

Insurance & Payment

Pay My Bill

Languages Spoken

FAQs

What services does United Occupational Health provide?

Pre-employment physicals, DOT and non-DOT drug and alcohol testing, work-related injury care, employer-mandated physicals, return-to-work evaluations, respirator fit testing, vaccinations, TB testing, and health surveillance programs.

Do I need an appointment or are walk-ins accepted?

Appointments are encouraged for most services to minimize wait times, but we do accept walk-ins for urgent testing and work-related injuries during clinic hours. For DOT physicals and other regulated exams, scheduling in advance is recommended.

How long do drug screen results take?

Most drug screen results are available within 24–48 hours.

How long are physical exam results?

Physical exam results are typically completed within the same day, and a summary can be sent to the employer upon request.

Are UMD Occupational Health services available at all locations?

Currently available at the Carlsbad location; expansion to Kearny Mesa, Newport Beach, La Jolla, and Temecula is planned.

Do you offer onsite or mobile occupational health services?

Yes, onsite and mobile services are available for select clients.

Photos

What Patients Say

Overall sentiment across review platforms: mixed

  • Birdeye (Google reviews): 4.2 out of 5 stars (67 reviews)
  • Solv Health: 5.0 out of 5 stars (1 review)
  • Unilocal: Not explicitly aggregated (4 reviews)

Patients praise

  • Friendly and professional staff
  • Clean facilities
  • Efficient for simple tests and pre-employment physicals
  • Compassionate and attentive care mentioned by some patients

Common complaints

  • Long wait times
  • Perceived lack of concern for patient pain or injury severity
  • Frustrating or ineffective communication with staff and management regarding medical records or care
  • Professionalism concerns including loud, personal conversations at front desk

"I was surprised how loudly they spoke about personal topics in front of customers. Once called to the back, it was very professional. Jessie explained each process thoroughly as he administered the tests. I truly appreciated his ability to keep me informed and what to expect."

Birdeye/Google Review

"Horrific wait time — made appointment, showed up early and was told I have a 45min-1hr wait! Why allow people to make appointments and not honor them.?!"

Unilocal Review

"I need to Wait another hour and the doctor came in I thought she understand my injuries and Tell her how I feel but doesn’t matter she send me back to work... Nothing is important to them."

LocalityBiz Review

Synthesized from public review platforms as of Jul 10, 2026 — sources: [1][2][3][4].

Information sourced from the clinic's website as of July 10, 2026.

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