NPI Portal NPI Lookup & Verification

Specialty · city directory

Internal Medicine in Westlake Village, CA

Active Internal Medicine providers practising in Westlake Village, California. Profiles include the NPI number, taxonomy code, license state, and practice address.

43 providers indexed

Internal Medicine providers in Westlake Village, CA

NPI Name Type Specialty Location
1770542722 Anil Daya Individual Internal Medicine Physician Westlake Village, CA
1356747802 Ben Mousavi MD Medical Corporation Organization Internal Medicine Physician Westlake Village, CA
1922293786 Christine Dahlin Individual Internal Medicine Physician Westlake Village, CA
1932392792 Dana Howard Individual Internal Medicine Physician Westlake Village, CA
1013338227 Dayamed, Inc. Organization Internal Medicine Physician Westlake Village, CA
1447526231 Dharushana Muthulingam Individual Infectious Disease Physician Westlake Village, CA
1871695601 Edward Portnoy MD, Inc Organization Internal Medicine Physician Westlake Village, CA
1265248413 Epic Wound Care Inc Organization Hospice and Palliative Medicine (Internal Medicine) Physician Westlake Village, CA
1104311216 Fang-Yu Liu Individual Infectious Disease Physician Westlake Village, CA
1154299246 Four Crowns Health and Wellness Inc. Organization Internal Medicine Physician Westlake Village, CA
1568158848 Gersha Apc Organization Internal Medicine Physician Westlake Village, CA
1366512899 Hector A Caballero MD Inc Organization Gastroenterology Physician Westlake Village, CA
1174515662 Hector Caballero Individual Gastroenterology Physician Westlake Village, CA
1215057195 Hilda Maldonado Individual Internal Medicine Physician Westlake Village, CA
1366568941 Howard Bliman M.D. Organization Internal Medicine Physician Westlake Village, CA
1649613761 Jennifer Siani Individual Endocrinology, Diabetes & Metabolism Physician Westlake Village, CA
1548690290 Joseph Miletich Individual Internal Medicine Physician Westlake Village, CA
1922033463 Joseph Nussbaum Individual Infectious Disease Physician Westlake Village, CA
1619286101 Julie Huynh Individual Hematology & Oncology Physician Westlake Village, CA
1245650563 Lauren Eisenbud Individual Hematology & Oncology Physician Westlake Village, CA
1598875072 Linda Gerrits Individual Internal Medicine Physician Westlake Village, CA
1124353057 Linda Gerrits M D Inc A Professional Corp Organization Nephrology Physician Westlake Village, CA
1891181103 Mark Hall Individual Rheumatology Physician Westlake Village, CA
1902024532 Maryum Merchant Individual Pulmonary Disease Physician Westlake Village, CA
1649240052 Michael Masterson Individual Medical Oncology Physician Westlake Village, CA
1013921634 Miryam Liberman Individual Internal Medicine Physician Westlake Village, CA
1356882567 Natalie Abrahamian Individual Internal Medicine Physician Westlake Village, CA
1710934336 Niti Vaid Individual Internal Medicine Physician Westlake Village, CA
1396725552 Niti Vaid, Do, Facp Organization Internal Medicine Physician Westlake Village, CA
1265518054 Olga Popel Individual Rheumatology Physician Westlake Village, CA
1619109378 Rauz Eshraghi Individual Internal Medicine Physician Westlake Village, CA
1588891865 Regents of Uc Organization Hematology & Oncology Physician Westlake Village, CA
1467343038 Richard Low Individual Internal Medicine Physician Westlake Village, CA
1174542898 Robert Yamane Individual Internal Medicine Physician Westlake Village, CA
1184920944 Rodolfo Gutierrez Individual Hematology & Oncology Physician Westlake Village, CA
1699899179 Schaack & Cole Medical Corporation Organization Internal Medicine Physician Westlake Village, CA
1609946169 Shahryar Ashouri Individual Hematology & Oncology Physician Westlake Village, CA
1497138499 Shyam Kolangara Individual Geriatric Medicine (Internal Medicine) Physician Westlake Village, CA
1336453810 Sidharth Anand Individual Hematology & Oncology Physician Westlake Village, CA
1639100662 Southern California Infectious Disease Medical Group Organization Infectious Disease Physician Westlake Village, CA
1457726440 Susan Jerian Individual Internal Medicine Physician Westlake Village, CA
1942520903 Thomas Casey Individual Cardiovascular Disease Physician Westlake Village, CA
1861637027 Thomas Giannulli Individual Internal Medicine Physician Westlake Village, CA

Frequently asked questions

How many Internal Medicine providers are in Westlake Village, CA?
The latest NPPES snapshot lists 43 active Internal Medicine providers with a practice address in Westlake Village, California.
How do I check a Internal Medicine provider's NPI in Westlake Village?
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 2026-07-13.