Internal Medicine in California — NPI Providers
42,256 active Internal Medicine providers have a practice location in California according to the latest NPPES snapshot. Each profile shows the NPI number, taxonomy code, license details, and practice address — useful for claims, credentialing, and verifying a provider.
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Internal Medicine providers in California
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1437186798 | 8920 Medical Associates, Inc. | Organization | Endocrinology, Diabetes & Metabolism Physician | Beverly Hills, CA |
| 1235328048 | A James Lewis, MD, Inc. | Organization | Cardiovascular Disease Physician | Torrance, CA |
| 1942306550 | A Nourin, MD, Inc | Organization | Internal Medicine Physician | La Mesa, CA |
| 1750456760 | A Plus Walk in Urgent Care Medical Clinic Apc | Organization | Internal Medicine Physician | Murrieta, CA |
| 1063600443 | A Randolph Pearlstein MD A Medical Corporation | Organization | Internal Medicine Physician | Beverly Hills, CA |
| 1770694226 | A. Brooks | Individual | Gastroenterology Physician | Truckee, CA |
| 1588650626 | A. Grant Kingsbury, MD, Inc | Organization | Internal Medicine Physician | San Diego, CA |
| 1861674376 | A. Ray Mabaquiao M.D. Apmc | Organization | Rheumatology Physician | El Centro, CA |
| 1720200363 | A. Reddy, M.D, Inc | Organization | Hematology & Oncology Physician | Merced, CA |
| 1700088556 | A. Richard Adrouny, M.D., Inc. | Organization | Medical Oncology Physician | Los Gatos, CA |
| 1992857700 | A. William Waibel | Individual | Interventional Cardiology Physician | Walnut Creek, CA |
| 1437287042 | A.S. Sawhney, M.D., Inc. | Organization | Nephrology Physician | Fountain Valley, CA |
| 1366559486 | A.S.Lalith Mohan M.D. Prof. Inc | Organization | Cardiovascular Disease Physician | Petaluma, CA |
| 1023191780 | A.V. Meridien Medical Group, Inc | Organization | Nephrology Physician | Palmdale, CA |
| 1710939822 | A.Venkatesh,M.D.,Inc | Organization | Cardiovascular Disease Physician | Sherman Oaks, CA |
| 1427277136 | Aadesh Sachdeva | Individual | Internal Medicine Physician | Fountain Valley, CA |
| 1568429678 | Aalok Shah | Individual | Pulmonary Disease Physician | Banning, CA |
| 1659309334 | Aamer Jamali | Individual | Interventional Cardiology Physician | West Hills, CA |
| 1184619447 | Aamir Faruqui | Individual | Critical Care Medicine (Internal Medicine) Physician | Walnut Creek, CA |
| 1558377523 | Aamir Jamal | Individual | Nephrology Physician | San Dimas, CA |
| 1376745125 | Aamra Sheikh | Individual | Internal Medicine Physician | Oakland, CA |
| 1639257280 | Aana Brenman | Individual | Internal Medicine Physician | San Francisco, CA |
| 1972573756 | Aaron Jordan | Individual | Cardiovascular Disease Physician | San Bernardino, CA |
| 1891726725 | Aaron Kern | Individual | Internal Medicine Physician | Lakewood, CA |
| 1184638090 | Aaron Lehman | Individual | Internal Medicine Physician | Ramona, CA |
| 1891873790 | Aaron Levy | Individual | Gastroenterology Physician | Vallejo, CA |
| 1801076633 | Aaron Logan | Individual | Hematology & Oncology Physician | San Francisco, CA |
| 1093784027 | Aaron Morse | Individual | Pulmonary Disease Physician | Santa Cruz, CA |
| 1235147562 | Aaron Pardini | Individual | Endocrinology, Diabetes & Metabolism Physician | Santa Cruz, CA |
| 1114952496 | Aaron Perlmutter | Individual | Infectious Disease Physician | Beverly Hills, CA |
| 1942234257 | Aaron Rang | Individual | Internal Medicine Physician | San Francisco, CA |
| 1619350337 | Aaron Richler | Individual | Internal Medicine Physician | Los Alamitos, CA |
| 1982783627 | Aaron Williams | Individual | Internal Medicine Physician | Santa Clara, CA |
| 1588843890 | Aarthi Chary | Individual | Infectious Disease Physician | Stanford, CA |
| 1528135357 | Aarti Maskeri | Individual | Internal Medicine Physician | Los Angeles, CA |
| 1194732024 | Aarti Srinivasan | Individual | Internal Medicine Physician | San Jose, CA |
| 1982890018 | Abalos-Galito Medical Service | Organization | Internal Medicine Physician | San Jose, CA |
| 1871548388 | Abas Tay | Individual | Cardiovascular Disease Physician | San Jose, CA |
| 1619183811 | Abayomi A. Odubela, M.D., A Professional Corporation | Organization | Internal Medicine Physician | Murrieta, CA |
| 1922108877 | Abayomi Odubela | Individual | Internal Medicine Physician | Murrieta, CA |
| 1467490441 | Abbas Chothia | Individual | Cardiovascular Disease Physician | Stockton, CA |
| 1114005022 | Abbas Ghadialy | Individual | Hematology & Oncology Physician | Stockton, CA |
| 1326089269 | Abbas Sedaghat | Individual | Internal Medicine Physician | Vista, CA |
| 1710188420 | Abbid Shah | Individual | Internal Medicine Physician | Fontana, CA |
| 1558375790 | Abdalla Mallouk | Individual | Nephrology Physician | Baldwin Park, CA |
| 1174507040 | Abdallah Kubbeh | Individual | Cardiovascular Disease Physician | Rancho Mirage, CA |
| 1841314630 | Abdallah Victor Kubbeh,M.D. A Professional Corporation | Organization | Cardiovascular Disease Physician | Palm Springs, CA |
| 1578688214 | Abdi Altafi | Individual | Cardiovascular Disease Physician | San Jose, CA |
| 1639122112 | Abdol Memar-Zia | Individual | Internal Medicine Physician | Simi Valley, CA |
| 1912044173 | Abdolreza Nassehzadeh Tabriz | Individual | Internal Medicine Physician | Mountain View, CA |
Internal Medicine by city in California
- Internal Medicine in Los Angeles, CA (3,698)
- Internal Medicine in San Francisco, CA (2,545)
- Internal Medicine in San Diego, CA (2,100)
- Internal Medicine in Sacramento, CA (1,320)
- Internal Medicine in Stanford, CA (980)
- Internal Medicine in San Jose, CA (851)
- Internal Medicine in Fresno, CA (781)
- Internal Medicine in Oakland, CA (674)
- Internal Medicine in Torrance, CA (669)
- Internal Medicine in Orange, CA (586)
- Internal Medicine in Beverly Hills, CA (542)
- Internal Medicine in La Jolla, CA (532)
- Internal Medicine in Long Beach, CA (527)
- Internal Medicine in Bakersfield, CA (495)
- Internal Medicine in Santa Monica, CA (452)
- Internal Medicine in Riverside, CA (437)
- Internal Medicine in Walnut Creek, CA (421)
- Internal Medicine in Anaheim, CA (404)
- Internal Medicine in Loma Linda, CA (403)
- Internal Medicine in Palo Alto, CA (398)
- Internal Medicine in Pasadena, CA (398)
- Internal Medicine in Newport Beach, CA (377)
- Internal Medicine in Glendale, CA (361)
- Internal Medicine in West Hollywood, CA (348)
- Internal Medicine in Irvine, CA (338)
- Internal Medicine in Roseville, CA (325)
- Internal Medicine in Modesto, CA (322)
- Internal Medicine in Santa Barbara, CA (313)
- Internal Medicine in Fountain Valley, CA (287)
- Internal Medicine in Santa Rosa, CA (287)
Frequently asked questions
How many Internal Medicine providers are in California?
The latest NPPES snapshot lists 42,256 active providers with Internal Medicine as their primary taxonomy and a practice location in California.
How do I verify a Internal Medicine provider's NPI in California?
Open the provider's profile below to see their NPI, taxonomy code, license state, and practice address, then cross-check against the official NPPES registry (linked on every profile).
Can I get this data through an API?
Yes — the NPI Portal API provides JSON search by specialty, state, and city, plus batch NPI verification.
Source: CMS NPPES (public data). Snapshot 2026-07-09.