Providers
168
Locations
10
Specialties
12
Insurance Plans
23
About United Medical Doctors
Background and practice information
United Medical Doctors is a large multi-specialty medical practice based in Fallbrook, CA, with 168 affiliated healthcare providers practicing across 10 locations.
The practice brings together providers across multiple specialties, including certified registered nurse anesthetist, gastroenterology, physician assistant, and nurse practitioner. Its providers are in-network with 23 insurance plans, though coverage varies by individual provider and should be confirmed before scheduling.
Across its providers, the practice has a strong average Merit-based Incentive Payment System (MIPS) score of 100.0 out of 100, a quality measure published by the Centers for Medicare & Medicaid Services.
Practice Locations
10 locations
United Medical DoctorsPrimary
2083 COMPTON AVE, Corona, CA 928817288
(951) 837-3151
Affiliations
Hospitals where providers at United Medical Doctors hold admitting privileges
Insurance Networks
Accepted insurance plans and networks
United Medical Doctors accepts 84 plans from 10 insurers, including Cigna, Aetna, UnitedHealthcare.
Source: CMS Transparency in Coverage filings (March 2026). Network participation may change — verify with the provider's office before scheduling.
Quality & Performance
Specialties at United Medical Doctors
Provider specialties represented at this practice
Healthcare Providers in Corona
22 providers practice here
Daniel Choi, CNA
Certified Registered Nurse Anesthetist (crna)
Corona, CA
Robert Knipper
Certified Registered Nurse Anesthetist (crna)
Corona, CA
Nancy Lucas, CNA
Certified Registered Nurse Anesthetist (crna)
Corona, CA
Kimberly Meraz, CNA
Certified Registered Nurse Anesthetist (crna)
Corona, CA
Jeanne Lammering
Diagnostic Radiology
Corona, CA
Aldric Shim, MD
Diagnostic Radiology
Corona, CA
Tinoosh Zand, MD
Diagnostic Radiology
Corona, CA
James Rhee, MD
Emergency Medicine
Corona, CA
Philip Chen, MD
Gastroenterology · Telehealth
Corona, CA
Roxanne Lim, MD
Gastroenterology · Telehealth
Corona, CA
Daniel Burgess, DO
General Surgery
Corona, CA
Matthew Schultzel, DO
General Surgery · Telehealth
Corona, CA
Brooke Cossaboom, PA
Physician Assistant
Corona, CA
Michael Davalos, PA
Physician Assistant
Corona, CA
Dustin Gottfeld, PA
Physician Assistant · Telehealth
Corona, CA
Brandon Miller, PA
Physician Assistant
Corona, CA
Tara Oliveri
Physician Assistant · Telehealth
Corona, CA
Paul Rogers, PA
Physician Assistant
Corona, CA
Bryan Sauter
Physician Assistant · Telehealth
Corona, CA
Michael Zamora, PA
Physician Assistant
Corona, CA
Phuong Pham, MD
Plastic And Reconstructive Surgery
Corona, CA
Shaelyn Painter
Qualified Audiologist
Corona, CA
Frequently Asked Questions
Common questions about United Medical Doctors
How many providers are at United Medical Doctors?
United Medical Doctors has 168 affiliated healthcare providers across 10 locations. You can browse the full provider roster, with specialties and locations, on this page.
What specialties does United Medical Doctors offer?
The practice includes providers in certified registered nurse anesthetist, gastroenterology, physician assistant, and nurse practitioner, among others. Use the specialty filter on the provider list to find a specific type of provider.
What insurance does United Medical Doctors accept?
Providers at United Medical Doctors are collectively in-network with 23 insurance plans. Acceptance varies by individual provider, so confirm your specific plan with the office before your visit.
Does United Medical Doctors have a quality rating?
The practice's providers have an average MIPS quality score of 100.0 out of 100, based on Centers for Medicare & Medicaid Services data. MIPS measures performance across quality, cost, care coordination, and use of health technology.
Where is United Medical Doctors located?
United Medical Doctors's primary location is in Fallbrook, CA, with 9 additional locations listed on this page. See the contact section for the full address and phone number.
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