Internal Medicine in Rialto, CA
23 active Internal Medicine providers practice in Rialto, California according to the latest NPPES snapshot. Profiles include the NPI number, taxonomy code, license state, and practice address.
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| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1447671714 | Ace Gastroenterology Associates Inc | Organization | Gastroenterology Physician | Rialto, CA |
| 1821296591 | Anas Kawayeh | Individual | Gastroenterology Physician | Rialto, CA |
| 1982153797 | Anas Kawayeh MD Inc | Organization | Gastroenterology Physician | Rialto, CA |
| 1710481445 | Carlos Buitrago | Individual | Gastroenterology Physician | Rialto, CA |
| 1467491118 | Charles Sabbah | Individual | Internal Medicine Physician | Rialto, CA |
| 1124960703 | Diana Ashouri MD Endocrinology & Weight Loss Medical Corporation | Organization | Endocrinology, Diabetes & Metabolism Physician | Rialto, CA |
| 1174582688 | Hedyeh Golshan | Individual | Internal Medicine Physician | Rialto, CA |
| 1629251350 | Hedyeh M Golshan MD and Associates Inc | Organization | Internal Medicine Physician | Rialto, CA |
| 1437437134 | Hiteshi Thakker | Individual | Internal Medicine Physician | Rialto, CA |
| 1467479295 | Ikechi Obiocha | Individual | Internal Medicine Physician | Rialto, CA |
| 1861855439 | Karen Chang | Individual | Gastroenterology Physician | Rialto, CA |
| 1205207628 | Kayali Consulting and Medical Management Inc | Organization | Gastroenterology Physician | Rialto, CA |
| 1134184708 | Kumaravelu Balasubramaniam | Individual | Gastroenterology Physician | Rialto, CA |
| 1942510607 | Mehrdad Ghahremani-Ghajar | Individual | Internal Medicine Physician | Rialto, CA |
| 1255615530 | Natasha Alexander | Individual | Internal Medicine Physician | Rialto, CA |
| 1487903258 | Paramount Medical, Inc. | Organization | Internal Medicine Physician | Rialto, CA |
| 1588689350 | Paul Chen | Individual | Internal Medicine Physician | Rialto, CA |
| 1457420903 | Ravindranath Shahane | Individual | Internal Medicine Physician | Rialto, CA |
| 1114998077 | Rogelio Toh | Individual | Internal Medicine Physician | Rialto, CA |
| 1295893162 | Sun Soung | Individual | Internal Medicine Physician | Rialto, CA |
| 1306259114 | Victor Guharoy | Individual | Gastroenterology Physician | Rialto, CA |
| 1417067588 | Yousuf Sadiq | Individual | Internal Medicine Physician | Rialto, CA |
| 1396777538 | Zeid Kayali | Individual | Internal Medicine Physician | Rialto, CA |
Frequently asked questions
How many Internal Medicine providers are in Rialto, CA?
The latest NPPES snapshot lists 23 active Internal Medicine providers with a practice address in Rialto, California.
How do I check a Internal Medicine provider's NPI in Rialto?
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.