Internal Medicine in Fontana, CA
196 active Internal Medicine providers practice in Fontana, California according to the latest NPPES snapshot. Profiles include the NPI number, taxonomy code, license state, and practice address.
Advertisement
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1710188420 | Abbid Shah | Individual | Internal Medicine Physician | Fontana, CA |
| 1659442630 | Alex Quan | Individual | Internal Medicine Physician | Fontana, CA |
| 1790967743 | Alexander Han | Individual | Gastroenterology Physician | Fontana, CA |
| 1184806606 | Alfred B Dadivas MD Inc | Organization | Internal Medicine Physician | Fontana, CA |
| 1063560951 | Amal Ballat | Individual | Internal Medicine Physician | Fontana, CA |
| 1093882813 | An Nguyen | Individual | Nephrology Physician | Fontana, CA |
| 1053471045 | Andre Lallande | Individual | Rheumatology Physician | Fontana, CA |
| 1053873646 | Andrew Chen | Individual | Internal Medicine Physician | Fontana, CA |
| 1194592923 | Andrew S. Chen, M.D., Inc. | Organization | Internal Medicine Physician | Fontana, CA |
| 1639565286 | Andy Chuu | Individual | Nephrology Physician | Fontana, CA |
| 1356970842 | Anje'Le Alston | Individual | Sports Medicine (Internal Medicine) Physician | Fontana, CA |
| 1740349323 | Antony Lin | Individual | Rheumatology Physician | Fontana, CA |
| 1598813545 | Arash Faghieh | Individual | Internal Medicine Physician | Fontana, CA |
| 1164008645 | Ariba Dadabhoy | Individual | Internal Medicine Physician | Fontana, CA |
| 1851592737 | Arman Aryai | Individual | Internal Medicine Physician | Fontana, CA |
| 1699823666 | Asha Sharma | Individual | Internal Medicine Physician | Fontana, CA |
| 1568882298 | Ashley Alexander | Individual | Internal Medicine Physician | Fontana, CA |
| 1235310780 | Azra Syed | Individual | Internal Medicine Physician | Fontana, CA |
| 1477612091 | Bao Do | Individual | Interventional Cardiology Physician | Fontana, CA |
| 1518015437 | Bates Moses | Individual | Internal Medicine Physician | Fontana, CA |
| 1225109259 | Bertrand Vipond | Individual | Internal Medicine Physician | Fontana, CA |
| 1841367752 | Bharat Joshi | Individual | Pulmonary Disease Physician | Fontana, CA |
| 1023185931 | Blanca Viramontes | Individual | Gastroenterology Physician | Fontana, CA |
| 1508151036 | Brandon Tong | Individual | Internal Medicine Physician | Fontana, CA |
| 1255911053 | Brenda Pelayo | Individual | Internal Medicine Physician | Fontana, CA |
| 1972670792 | Carmela Leonora | Individual | Interventional Cardiology Physician | Fontana, CA |
| 1447317938 | Chaparral Medical Group Inc | Organization | Internal Medicine Physician | Fontana, CA |
| 1962550855 | Charerntas Toochinda | Individual | Internal Medicine Physician | Fontana, CA |
| 1457409435 | Charles Lu | Individual | Nephrology Physician | Fontana, CA |
| 1073680823 | Charlie Yang | Individual | Hematology & Oncology Physician | Fontana, CA |
| 1033303953 | Chithraleka Sundaramurthy | Individual | Internal Medicine Physician | Fontana, CA |
| 1285095752 | Christine Bui | Individual | Internal Medicine Physician | Fontana, CA |
| 1336216266 | Cliff Hwang | Individual | Internal Medicine Physician | Fontana, CA |
| 1306913223 | Craig Arakaki | Individual | Critical Care Medicine (Internal Medicine) Physician | Fontana, CA |
| 1053470658 | Daniel Seid | Individual | Gastroenterology Physician | Fontana, CA |
| 1104267053 | Danish Abbas | Individual | Internal Medicine Physician | Fontana, CA |
| 1700131059 | Darpan Patel | Individual | Internal Medicine Physician | Fontana, CA |
| 1982634788 | David Chen | Individual | Cardiovascular Disease Physician | Fontana, CA |
| 1285705236 | David Kestenbaum | Individual | Gastroenterology Physician | Fontana, CA |
| 1073661856 | David Liu | Individual | Internal Medicine Physician | Fontana, CA |
| 1720147390 | Dean Huynh | Individual | Internal Medicine Physician | Fontana, CA |
| 1902928179 | Dennis Hwang | Individual | Pulmonary Disease Physician | Fontana, CA |
| 1427125327 | Dennis Nagel | Individual | Internal Medicine Physician | Fontana, CA |
| 1336560481 | Derek Leung | Individual | Internal Medicine Physician | Fontana, CA |
| 1902973845 | Derek Li | Individual | Internal Medicine Physician | Fontana, CA |
| 1508914417 | Dorcas Ang | Individual | Internal Medicine Physician | Fontana, CA |
| 1194892091 | Douglas Richards | Individual | Addiction Medicine (Internal Medicine) Physician | Fontana, CA |
| 1932276847 | Duane Collins | Individual | Internal Medicine Physician | Fontana, CA |
| 1508933433 | Duc Nguyen | Individual | Internal Medicine Physician | Fontana, CA |
| 1215004031 | Dung Nguyen | Individual | Pulmonary Disease Physician | Fontana, CA |
Frequently asked questions
How many Internal Medicine providers are in Fontana, CA?
The latest NPPES snapshot lists 196 active Internal Medicine providers with a practice address in Fontana, California.
How do I check a Internal Medicine provider's NPI in Fontana?
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 2026-07-10.