NPI Portal NPI Lookup & Verification

Internal Medicine in Fullerton, CA

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

Internal Medicine providers in Fullerton, CA
NPI Name Type Specialty Location
1063501997 Alan Borsari Individual Cardiovascular Disease Physician Fullerton, CA
1669414512 Alex Leung Individual Internal Medicine Physician Fullerton, CA
1134380173 Alex Ly Individual Internal Medicine Physician Fullerton, CA
1992064950 Amir Najafi Individual Cardiovascular Disease Physician Fullerton, CA
1306015607 Amy Alias Individual Internal Medicine Physician Fullerton, CA
1366442998 Andrew Concoff Individual Sports Medicine (Internal Medicine) Physician Fullerton, CA
1013986959 Andrew Duke Individual Critical Care Medicine (Internal Medicine) Physician Fullerton, CA
1326059882 Andy Tran Individual Pulmonary Disease Physician Fullerton, CA
1639829625 Anthony Crymes Individual Internal Medicine Physician Fullerton, CA
1497829972 Arash Farahanchi Individual Internal Medicine Physician Fullerton, CA
1194960385 Arman Sheibanikia Individual Critical Care Medicine (Internal Medicine) Physician Fullerton, CA
1952621393 Arun D Patel M.D. Inc Organization Internal Medicine Physician Fullerton, CA
1477628840 Arun Patel Individual Internal Medicine Physician Fullerton, CA
1316272180 Becky Muldoon Individual Endocrinology, Diabetes & Metabolism Physician Fullerton, CA
1104826619 Bradley Borsari Individual Internal Medicine Physician Fullerton, CA
1194711184 Charles Suh Individual Interventional Cardiology Physician Fullerton, CA
1164566311 Dana Tran Individual Critical Care Medicine (Internal Medicine) Physician Fullerton, CA
1174527139 Daniel Landa Individual Cardiovascular Disease Physician Fullerton, CA
1275619447 David Park Individual Medical Oncology Physician Fullerton, CA
1285620658 David Ruckman Individual Internal Medicine Physician Fullerton, CA
1043487812 Dharma Medical Associates Inc Organization Cardiovascular Disease Physician Fullerton, CA
1801882261 Edward Lawton Individual Pulmonary Disease Physician Fullerton, CA
1568466431 Edward Lee Individual Cardiovascular Disease Physician Fullerton, CA
1457387003 Ehsan Safaie-Fard Individual Internal Medicine Physician Fullerton, CA
1912080094 Eleanor Kelly Individual Internal Medicine Physician Fullerton, CA
1023019965 Eugene Boston Individual Internal Medicine Physician Fullerton, CA
1104812643 Eugene Byun Individual Interventional Cardiology Physician Fullerton, CA
1861618449 Eugene Yoon Individual Gastroenterology Physician Fullerton, CA
1144186115 Euil Lim Medical Corporation Organization Internal Medicine Physician Fullerton, CA
1427159458 Farhan Khabaz Individual Pulmonary Disease Physician Fullerton, CA
1366446312 Frank Bonavita Individual Cardiovascular Disease Physician Fullerton, CA
1588650931 Friedhelm Cordes Individual Internal Medicine Physician Fullerton, CA
1154397628 Fullerton Cardiovascular Med Group, Inc Organization Cardiovascular Disease Physician Fullerton, CA
1730355801 Fullerton Chest and Crtitical Care Inc Organization Pulmonary Disease Physician Fullerton, CA
1730368374 Fullerton Pulmonary & Critical Care Inc Organization Pulmonary Disease Physician Fullerton, CA
1508664798 George Nasr MD Professional Corporation Organization Cardiovascular Disease Physician Fullerton, CA
1033106562 Giribala Patel Individual Medical Oncology Physician Fullerton, CA
1144532227 Global Dharma Medical Associates , Inc. Organization Cardiovascular Disease Physician Fullerton, CA
1083642839 Jae Kim Individual Internal Medicine Physician Fullerton, CA
1043399017 James Hardeman Individual Pulmonary Disease Physician Fullerton, CA
1245431956 Jane Quon Individual Internal Medicine Physician Fullerton, CA
1154664597 Jason Ling Individual Endocrinology, Diabetes & Metabolism Physician Fullerton, CA
1669468757 Jay Han Individual Cardiovascular Disease Physician Fullerton, CA
1811984123 Jay Kim Individual Rheumatology Physician Fullerton, CA
1932195476 Jeffrey Bodwin Individual Endocrinology, Diabetes & Metabolism Physician Fullerton, CA
1518953694 Jeffrey Dell Individual Cardiovascular Disease Physician Fullerton, CA
1780621821 Jesus Vera Individual Cardiovascular Disease Physician Fullerton, CA
1104965383 Jimmy Liao Individual Internal Medicine Physician Fullerton, CA
1588650667 John Gilbert Individual Endocrinology, Diabetes & Metabolism Physician Fullerton, CA
1619028131 John K. Lee, M.D., Inc. Organization Geriatric Medicine (Internal Medicine) Physician Fullerton, CA

Frequently asked questions

How many Internal Medicine providers are in Fullerton, CA?
The latest NPPES snapshot lists 132 active Internal Medicine providers with a practice address in Fullerton, California.
How do I check a Internal Medicine provider's NPI in Fullerton?
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.