NPI Portal NPI Lookup & Verification

Internal Medicine in Upland, CA

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

Internal Medicine providers in Upland, CA
NPI Name Type Specialty Location
1871115709 Ahmed Al-Waisi Individual Internal Medicine Physician Upland, CA
1538708672 Ali Alktaifi MD Inc Organization Internal Medicine Physician Upland, CA
1396734547 Amit Patel Individual Allergy & Immunology (Internal Medicine) Physician Upland, CA
1114926367 Antony Hou Individual Rheumatology Physician Upland, CA
1942366992 B Don Ahn MD Inc Organization Cardiovascular Disease Physician Upland, CA
1932264850 Baidyanath Prasad Individual Cardiovascular Disease Physician Upland, CA
1932217544 Basim Abdelkarim Individual Gastroenterology Physician Upland, CA
1063593739 Basim Z. Abdelkarim, M.D., Inc. Organization Gastroenterology Physician Upland, CA
1457324808 Bhupal Kommineni Individual Internal Medicine Physician Upland, CA
1508051566 Bhupal Kommineni, M.D. Inc. Organization Internal Medicine Physician Upland, CA
1194715193 Byung Ahn Individual Cardiovascular Disease Physician Upland, CA
1821889320 Cajon Medical Group, PC Organization Internal Medicine Physician Upland, CA
1477785160 Camille Adeimy Individual Hematology & Oncology Physician Upland, CA
1831299254 Camron Kiafar Individual Gastroenterology Physician Upland, CA
1285690909 Carlos Canizales Individual Cardiovascular Disease Physician Upland, CA
1790987568 Carlos R Canizales MD Inc Organization Cardiovascular Disease Physician Upland, CA
1992183602 Centerline Diagnostics Organization Internal Medicine Physician Upland, CA
1144282732 Chaparral Medical Group Inc Organization Rheumatology Physician Upland, CA
1831442078 Chaparral Medical Group Inc. Organization Cardiovascular Disease Physician Upland, CA
1780146019 Chaparral Medical Group Inc. Organization Gastroenterology Physician Upland, CA
1639869605 Chaparral Medical Group Inc. Organization Cardiovascular Disease Physician Upland, CA
1467903039 Chaparral Medical Group, Inc. Organization Clinical Cardiac Electrophysiology Physician Upland, CA
1083813422 Chau Tran Individual Hematology & Oncology Physician Upland, CA
1073654570 Chirag Vaidya Individual Nephrology Physician Upland, CA
1619049749 Chuang Hung Individual Gastroenterology Physician Upland, CA
1619990389 Cynthia Serabyn Individual Internal Medicine Physician Upland, CA
1972595122 David Engelhardt Individual Internal Medicine Physician Upland, CA
1881830784 David Tran Individual Internal Medicine Physician Upland, CA
1336660901 Decerie Dayag Individual Internal Medicine Physician Upland, CA
1063754737 Deepaaleya Medical Inc. Organization Cardiovascular Disease Physician Upland, CA
1992955272 Dr Kevin M Jenkins Do Inc Organization Gastroenterology Physician Upland, CA
1578762779 Dwaraknath P. Reddy, M.D. Organization Gastroenterology Physician Upland, CA
1417964917 Dwaraknath Reddy Individual Gastroenterology Physician Upland, CA
1205156866 Ebrahim Sadeghi Najafabadi Individual Rheumatology Physician Upland, CA
1194742775 Erlinda Uy - Concepcion Individual Nephrology Physician Upland, CA
1861668188 Erlinda Uy-Concepcion M D Inc Organization Nephrology Physician Upland, CA
1316279813 Fatima H. Hakkak D.O., Inc. Organization Cardiovascular Disease Physician Upland, CA
1568562247 Fatima Hakkak Individual Cardiovascular Disease Physician Upland, CA
1235328899 Fouad D Tawadrous MD Inc Organization Pulmonary Disease Physician Upland, CA
1245251107 Frank D. Utzurrum, MD Inc Organization Pulmonary Disease Physician Upland, CA
1053505982 Frankie Utzurrum Individual Pulmonary Disease Physician Upland, CA
1366474322 Gerald Friedman Individual Nephrology Physician Upland, CA
1861791105 Gerald S Friedman M D Inc Organization Nephrology Physician Upland, CA
1558497891 Ghassan Hadi Individual Internal Medicine Physician Upland, CA
1174659064 Ghassan Hadi MD Inc Organization Internal Medicine Physician Upland, CA
1841430535 Grobler Enterprises Inc Organization Internal Medicine Physician Upland, CA
1992904395 Hammad Khan Individual Interventional Cardiology Physician Upland, CA
1679908404 Hammad O Khan, MD, Inc. Organization Interventional Cardiology Physician Upland, CA
1275817736 Inland Cardiology Heart Failure Clinic Organization Cardiovascular Disease Physician Upland, CA
1669064366 Inland Physicians Pulmonary Services Organization Pulmonary Disease Physician Upland, CA

Frequently asked questions

How many Internal Medicine providers are in Upland, CA?
The latest NPPES snapshot lists 121 active Internal Medicine providers with a practice address in Upland, California.
How do I check a Internal Medicine provider's NPI in Upland?
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.