Providers
111
Locations
5
Specialties
9
Insurance Plans
32
About Quantum Healthcare Medical Associates Inc
Background and practice information
Quantum Healthcare Medical Associates INC is a large multi-specialty medical practice based in Colton, CA, with 111 affiliated healthcare providers practicing across 5 locations in 2 states.
The practice brings together providers across multiple specialties, including internal medicine, family practice, hospitalist, and nurse practitioner. Its providers are in-network with 32 insurance plans, though coverage varies by individual provider and should be confirmed before scheduling.
Across its providers, the practice has a reported average Merit-based Incentive Payment System (MIPS) score of 47.0 out of 100, a quality measure published by the Centers for Medicare & Medicaid Services.
Practice Locations
5 locations
Quantum Healthcare Medical Associates IncPrimary
400 N PEPPER AVE, Colton, CA 923241801
(909) 580-1000
Affiliations
Hospitals where providers at Quantum Healthcare Medical Associates Inc hold admitting privileges
Insurance Networks
Accepted insurance plans and networks
Quantum Healthcare Medical Associates Inc accepts 95 plans from 13 insurers, including Cigna, Aetna, Humana.
Source: CMS Transparency in Coverage filings (March 2026). Network participation may change — verify with the provider's office before scheduling.
Quality & Performance
Specialties at Quantum Healthcare Medical Associates Inc
Provider specialties represented at this practice
Healthcare Providers in Colton
40 providers practice here
M Shahid Khan, MD
Addiction Medicine
Colton, CA
Ahmad Alazzeh, MD
Critical Care (intensivists) · Telehealth
Colton, CA
Mufadda Hasan, MD
Critical Care (intensivists)
Colton, CA
Tigran Stepanyan, DO
Critical Care (intensivists)
Colton, CA
Afshin Hamidi, MD
Endocrinology · Telehealth
Colton, CA
Mehrdad Ghahremani-ghajar, DO
General Practice · Telehealth
Colton, CA
Niki Mohammadi, DO
Hospitalist
Colton, CA
Sarkis Arabian, DO
Internal Medicine
Colton, CA
Ankur Bhagat, DO
Internal Medicine
Colton, CA
Farshid Bozorgnia, MD
Internal Medicine · Telehealth
Colton, CA
Daniel Chang, MD
Internal Medicine
Colton, CA
Gilbert Chen, MD
Internal Medicine
Colton, CA
Curtis Converse, DO
Internal Medicine
Colton, CA
Jessica Costales, DO
Internal Medicine
Colton, CA
Debra Craig, MD
Internal Medicine
Colton, CA
Henrik Ghantarchyan, MD
Internal Medicine
Colton, CA
Raffi Gharakhanian, DO
Internal Medicine
Colton, CA
Mariam Hazem, MD
Internal Medicine
Colton, CA
Brandon Johnston, MD
Internal Medicine
Colton, CA
Linna Kho, MD
Internal Medicine
Colton, CA
Hootan Mehr, MD
Internal Medicine
Colton, CA
Son Nguyen, MD
Internal Medicine
Colton, CA
Buzand Oganesian, DO
Internal Medicine
Colton, CA
David Pena, MD
Internal Medicine
Colton, CA
Frequently Asked Questions
Common questions about Quantum Healthcare Medical Associates Inc
How many providers are at Quantum Healthcare Medical Associates INC?
Quantum Healthcare Medical Associates INC has 111 affiliated healthcare providers across 5 locations. You can browse the full provider roster, with specialties and locations, on this page.
What specialties does Quantum Healthcare Medical Associates INC offer?
The practice includes providers in internal medicine, family practice, hospitalist, and nurse practitioner, among others. Use the specialty filter on the provider list to find a specific type of provider.
What insurance does Quantum Healthcare Medical Associates INC accept?
Providers at Quantum Healthcare Medical Associates INC are collectively in-network with 32 insurance plans. Acceptance varies by individual provider, so confirm your specific plan with the office before your visit.
Does Quantum Healthcare Medical Associates INC have a quality rating?
The practice's providers have an average MIPS quality score of 47.0 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 Quantum Healthcare Medical Associates INC located?
Quantum Healthcare Medical Associates INC's primary location is in Colton, CA, with 4 additional locations listed on this page. See the contact section for the full address and phone number.
Other Group Practices Nearby
Explore more group practices in CA
Cep America - Psychiatry Pc
97 providers · Colton, CA
County Of San Bernardino
83 providers · Colton, CA
Clinic Services Of California Medical Group Inc
78 providers · Colton, CA
Inland Empire Anesthesia Medical Group, Inc
38 providers · Colton, CA
Cal Med Physicians And Surgeons Inc
37 providers · Colton, CA
Vituity Healthcare Services Pc
29 providers · Colton, CA
Group Practices in Nearby Cities
Browse group practices elsewhere in CA