NPI Portal NPI Lookup & Verification

Internal Medicine in Petaluma, CA

51 active Internal Medicine providers practice in Petaluma, California according to the latest NPPES snapshot. Profiles include the NPI number, taxonomy code, license state, and practice address.

Internal Medicine providers in Petaluma, CA
NPI Name Type Specialty Location
1366559486 A.S.Lalith Mohan M.D. Prof. Inc Organization Cardiovascular Disease Physician Petaluma, CA
1982893582 Adamane Lalith Mohan Individual Cardiovascular Disease Physician Petaluma, CA
1336223320 Amy Kaelin Individual Internal Medicine Physician Petaluma, CA
1942149331 Aranzazu Briseno Rodriguez Individual Internal Medicine Physician Petaluma, CA
1780842724 Associated Kidney Specialists of the North Bay, Inc. Organization Nephrology Physician Petaluma, CA
1942617717 Carol Li Individual Hospice and Palliative Medicine (Internal Medicine) Physician Petaluma, CA
1366185118 Channel Medical Group of California, P.C. Organization Rheumatology Physician Petaluma, CA
1881778959 Charles Metzger Individual Internal Medicine Physician Petaluma, CA
1821267162 David A Chappell MD, Medical Corporation Organization Endocrinology, Diabetes & Metabolism Physician Petaluma, CA
1598732463 David Chappell Individual Endocrinology, Diabetes & Metabolism Physician Petaluma, CA
1962423103 Farid Osman Individual Nephrology Physician Petaluma, CA
1124047311 Gerald Besses Individual Internal Medicine Physician Petaluma, CA
1902086374 Hepatology and Gastroenterology Associates Inc Organization Gastroenterology Physician Petaluma, CA
1932321387 Institute for Health Management Inc Organization Nephrology Physician Petaluma, CA
1689726481 J. David Judge Individual Cardiovascular Disease Physician Petaluma, CA
1144718875 Jeffrey Tobias Individual Critical Care Medicine (Internal Medicine) Physician Petaluma, CA
1922539923 Jessica Duke Individual Cardiovascular Disease Physician Petaluma, CA
1932283009 Karen Bloom Individual Internal Medicine Physician Petaluma, CA
1518965490 Kenneth Lehrman Individual Cardiovascular Disease Physician Petaluma, CA
1316139066 Kokeb Teshome Individual Internal Medicine Physician Petaluma, CA
1396895199 Lisa Velasquez Individual Internal Medicine Physician Petaluma, CA
1871710871 Louis Pelfini Individual Internal Medicine Physician Petaluma, CA
1093893596 Michael Lennon Individual Internal Medicine Physician Petaluma, CA
1114059979 Nina Molin Individual Internal Medicine Physician Petaluma, CA
1992797435 Noel Santo Domingo Individual Cardiovascular Disease Physician Petaluma, CA
1003815606 Northern California Medical Assoc Inc Organization Cardiovascular Disease Physician Petaluma, CA
1992325526 Padma Aluru Individual Internal Medicine Physician Petaluma, CA
1124029491 Philippe Edouard Individual Internal Medicine Physician Petaluma, CA
1497704522 Rajesh Ranadive Individual Internal Medicine Physician Petaluma, CA
1447200480 Rajina Ranadive Individual Internal Medicine Physician Petaluma, CA
1295784346 Ranadive MD Inc Organization Internal Medicine Physician Petaluma, CA
1891793741 Raymond Erny Individual Cardiovascular Disease Physician Petaluma, CA
1841204518 Redwood Regional Medical Group, Inc. Organization Hematology & Oncology Physician Petaluma, CA
1669470522 Richard Gaston Individual Interventional Cardiology Physician Petaluma, CA
1912109240 Robert Ostroff Individual Internal Medicine Physician Petaluma, CA
1538356035 Robert Park M.D. Organization Nephrology Physician Petaluma, CA
1801970892 Roberto Gonzalez Individual Internal Medicine Physician Petaluma, CA
1104455526 Roberto Gonzalez Huerta Individual Internal Medicine Physician Petaluma, CA
1952485922 Rukiye Yoltar Individual Internal Medicine Physician Petaluma, CA
1972751915 Saw Aye Individual Internal Medicine Physician Petaluma, CA
1700958550 Sharina Belani Individual Internal Medicine Physician Petaluma, CA
1912085523 Sheryl Garrett Individual Cardiovascular Disease Physician Petaluma, CA
1699888610 Stephen Denigris Individual Gastroenterology Physician Petaluma, CA
1801076278 Stephen Denigris MD Phd Organization Gastroenterology Physician Petaluma, CA
1265516330 Stephen Weiss Individual Internal Medicine Physician Petaluma, CA
1588714380 Susan Gross Individual Internal Medicine Physician Petaluma, CA
1235371857 Thomas Knecht Individual Endocrinology, Diabetes & Metabolism Physician Petaluma, CA
1275533887 Thomas Maloney Individual Internal Medicine Physician Petaluma, CA
1699855445 Thomas Stanton Individual Hematology & Oncology Physician Petaluma, CA
1063475952 Timothy Sowerby Individual Gastroenterology Physician Petaluma, CA

Frequently asked questions

How many Internal Medicine providers are in Petaluma, CA?
The latest NPPES snapshot lists 51 active Internal Medicine providers with a practice address in Petaluma, California.
How do I check a Internal Medicine provider's NPI in Petaluma?
Open a profile below to see the NPI number, taxonomy code, and practice address, then verify against the official NPPES registry — every profile links directly to the CMS record.

Source: CMS NPPES (public data). Snapshot 2026-07-10.