NPI Portal NPI Lookup & Verification

Internal Medicine in Lancaster, CA

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

Internal Medicine providers in Lancaster, CA
NPI Name Type Specialty Location
1114903762 Abraham Paykar Individual Nephrology Physician Lancaster, CA
1689849986 Abraham Paykar MD, Inc Organization Nephrology Physician Lancaster, CA
1912042235 Ali Jafferi Individual Internal Medicine Physician Lancaster, CA
1902097744 Amartej Merla Individual Hematology & Oncology Physician Lancaster, CA
1659507788 Aminu Birhan Individual Internal Medicine Physician Lancaster, CA
1922146661 Antelope Valley Cardiology Associates Organization Internal Medicine Physician Lancaster, CA
1801940812 Antelope Valley Endocrinology, A Professional Corporation Organization Endocrinology, Diabetes & Metabolism Physician Lancaster, CA
1194280453 Antelope Valley Lung & Sleep Institute, Inc Organization Pulmonary Disease Physician Lancaster, CA
1497212898 Antelope Valley Lung & Sleep Institute, Inc Organization Pulmonary Disease Physician Lancaster, CA
1831658525 Antelope Valley Lung & Sleep Institute, Inc Organization Pulmonary Disease Physician Lancaster, CA
1356765655 Antelope Valley Lung Institute Medical Group Organization Pulmonary Disease Physician Lancaster, CA
1720199763 Anthony Dulgeroff Individual Internal Medicine Physician Lancaster, CA
1851443717 Antony C Ernest MD Inc Arun N Mehta MD Prof Corp Et Al Ptr Valley Card Organization Cardiovascular Disease Physician Lancaster, CA
1740380880 Antony Ernest Individual Cardiovascular Disease Physician Lancaster, CA
1477526846 Antony Fung Individual Internal Medicine Physician Lancaster, CA
1356379275 Anupam Singla Individual Internal Medicine Physician Lancaster, CA
1033968847 Ark Medical Group Organization Internal Medicine Physician Lancaster, CA
1346745262 Ashruta Ahuja Individual Internal Medicine Physician Lancaster, CA
1144723800 Av Critical Care Inc Organization Critical Care Medicine (Internal Medicine) Physician Lancaster, CA
1588959035 Av Hospitalist Physicians, A California Professional Medical Corp Organization Pulmonary Disease Physician Lancaster, CA
1801864301 Bassam Hadaya Individual Nephrology Physician Lancaster, CA
1174629950 Bassel Hadaya Individual Nephrology Physician Lancaster, CA
1508637760 Cajon Medical Group, PC Organization Internal Medicine Physician Lancaster, CA
1093840936 Canagaretnam Chandradas Individual Internal Medicine Physician Lancaster, CA
1568488245 Canagartnam Pathmarajah Individual Gastroenterology Physician Lancaster, CA
1720274400 Cardiovascular Institute of Southern California Organization Interventional Cardiology Physician Lancaster, CA
1205947231 Charles Lim Individual Internal Medicine Physician Lancaster, CA
1033788336 City of Hope Medical Foundation Organization Hematology & Oncology Physician Lancaster, CA
1023158052 Complete Family Care Medical Corp Organization Internal Medicine Physician Lancaster, CA
1588655450 Deepak Shivaram Individual Internal Medicine Physician Lancaster, CA
1447360508 Dennis Tse Individual Nephrology Physician Lancaster, CA
1285725945 Doddanna Krishna Individual Pulmonary Disease Physician Lancaster, CA
1902997661 Doddanna Krishna M D A Professional Corporation Organization Pulmonary Disease Physician Lancaster, CA
1629411756 Duminda Suraweera Individual Gastroenterology Physician Lancaster, CA
1679559157 Edward Wong Individual Gastroenterology Physician Lancaster, CA
1497804918 Ernest Medical Corporation Inc Organization Cardiovascular Disease Physician Lancaster, CA
1982270401 Ethan Hsu Individual Internal Medicine Physician Lancaster, CA
1144493131 Ferdinand Panoussi Individual Internal Medicine Physician Lancaster, CA
1225134885 Florcita Alvarez-Galoosian Individual Nephrology Physician Lancaster, CA
1326514746 Gastro Care Institute Organization Gastroenterology Physician Lancaster, CA
1790895936 George Mya Individual Internal Medicine Physician Lancaster, CA
1821066325 Ghassan Dahhan Individual Nephrology Physician Lancaster, CA
1871670091 Gurcharn Singh Individual Gastroenterology Physician Lancaster, CA
1366587768 Gyanesh Agrawal Individual Internal Medicine Physician Lancaster, CA
1891114583 Hannah Asghari Individual Hematology & Oncology Physician Lancaster, CA
1508894361 Hans Weber Individual Rheumatology Physician Lancaster, CA
1215964150 Harihar Agarwal Individual Internal Medicine Physician Lancaster, CA
1528083383 Harihar P. Agarwal, MD Inc Organization Internal Medicine Physician Lancaster, CA
1144356460 Harry Nickle Individual Infectious Disease Physician Lancaster, CA
1689323552 Hazem Aboaid Individual Internal Medicine Physician Lancaster, CA

Frequently asked questions

How many Internal Medicine providers are in Lancaster, CA?
The latest NPPES snapshot lists 158 active Internal Medicine providers with a practice address in Lancaster, California.
How do I check a Internal Medicine provider's NPI in Lancaster?
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 2026-07-11.