Providers
1550
Locations
33
Specialties
12
Insurance Plans
54
About Providence Medical Foundation
Background and practice information
Providence Medical Foundation is a large multi-specialty medical practice based in Fullerton, CA, with 1,550 affiliated healthcare providers practicing across 33 locations.
The practice brings together providers across multiple specialties, including internal medicine, nurse practitioner, family practice, and physician assistant. Its providers are in-network with 54 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 90.7 out of 100, a quality measure published by the Centers for Medicare & Medicaid Services.
Practice Locations
33 locations
Providence Medical FoundationPrimary
1476 PROFESSIONAL DR, Petaluma, CA 949541500
(707) 781-7350
Fullerton, CA
1081 providers
Santa Rosa, CA
582 providers
Eureka, CA
353 providers
Orange, CA
322 providers
Mission Viejo, CA
263 providers
Anaheim, CA
229 providers
Diamond Bar, CA
176 providers
Napa, CA
151 providers
Apple Valley, CA
77 providers
Brea, CA
74 providers
Yorba Linda, CA
62 providers
Santa Ana, CA
58 providers
Victorville, CA
57 providers
Laguna Hills, CA
48 providers
Fortuna, CA
42 providers
Chino Hills, CA
39 providers
San Clemente, CA
32 providers
Laguna Niguel, CA
27 providers
Hesperia, CA
26 providers
Irvine, CA
24 providers
Windsor, CA
19 providers
Tustin, CA
16 providers
La Habra, CA
13 providers
Foothill Ranch, CA
8 providers
Garden Grove, CA
8 providers
Sebastopol, CA
4 providers
Healdsburg, CA
4 providers
Ukiah, CA
3 providers
Lakeport, CA
3 providers
Rancho Mission Viejo, CA
2 providers
Sonoma, CA
1 provider
Rohnert Park, CA
1 provider
Affiliations
Hospitals where providers at Providence Medical Foundation hold admitting privileges
Insurance Networks
Accepted insurance plans and networks
Providence Medical Foundation accepts 133 plans from 17 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 Providence Medical Foundation
Provider specialties represented at this practice
Healthcare Providers in Petaluma
76 providers practice here
Daljeet Samra, MD
Allergy/immunology · Telehealth
Petaluma, CA
Peter Chang Sing, MD
Cardiac Electrophysiology · Telehealth
Petaluma, CA
Mary Borses, MD
Cardiovascular Disease (cardiology) · Telehealth
Petaluma, CA
Sheryl Garrett, MD
Cardiovascular Disease (cardiology)
Petaluma, CA
Adamane Lalithmohan, MD
Cardiovascular Disease (cardiology)
Petaluma, CA
Sergio Manubens, MD
Cardiovascular Disease (cardiology) · Telehealth
Petaluma, CA
Harendra Punatar, MD
Cardiovascular Disease (cardiology)
Petaluma, CA
Walter Seale, MD
Cardiovascular Disease (cardiology)
Petaluma, CA
James Srebro, MD
Cardiovascular Disease (cardiology) · Telehealth
Petaluma, CA
Suzanne Yeomans, CSW
Clinical Social Worker · Telehealth
Petaluma, CA
Gregory Houghton, MD
Critical Care (intensivists)
Petaluma, CA
Jon Karch, MD
Critical Care (intensivists)
Petaluma, CA
Leigh Slater, MD
Critical Care (intensivists)
Petaluma, CA
Hannah Knox, MD
Endocrinology · Telehealth
Petaluma, CA
Nolan Bayen, MD
Family Practice
Petaluma, CA
Karl Greer
Family Practice
Petaluma, CA
Patrick Lally, MD
Family Practice
Petaluma, CA
Masato Sugiura, DO
Family Practice
Petaluma, CA
Stephen Denigris, MD
Gastroenterology
Petaluma, CA
Michael Bozuk, MD
General Surgery
Petaluma, CA
Ninad Dabadghav, MD
General Surgery
Petaluma, CA
Sapoora Manshaii, MD
General Surgery
Petaluma, CA
Elpidio Mariano, MD
General Surgery
Petaluma, CA
Loie Sauer, MD
General Surgery
Petaluma, CA
Frequently Asked Questions
Common questions about Providence Medical Foundation
How many providers are at Providence Medical Foundation?
Providence Medical Foundation has 1,550 affiliated healthcare providers across 33 locations. You can browse the full provider roster, with specialties and locations, on this page.
What specialties does Providence Medical Foundation offer?
The practice includes providers in internal medicine, nurse practitioner, family practice, and physician assistant, among others. Use the specialty filter on the provider list to find a specific type of provider.
What insurance does Providence Medical Foundation accept?
Providers at Providence Medical Foundation are collectively in-network with 54 insurance plans. Acceptance varies by individual provider, so confirm your specific plan with the office before your visit.
Does Providence Medical Foundation have a quality rating?
The practice's providers have an average MIPS quality score of 90.7 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 Providence Medical Foundation located?
Providence Medical Foundation's primary location is in Fullerton, CA, with 32 additional locations listed on this page. See the contact section for the full address and phone number.
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