Data from the NPPES registry. May not reflect recent changes — verify at nppes.cms.hhs.gov.
AMMAR HASSAN, D.O.
ActiveAMMAR HASSAN, D.O. is a Gastroenterology healthcare provider located in MUNSTER, Indiana. NPI 1023428877 is currently active in the NPPES registry. Verify at CMS.
Gastroenterology · MUNSTER, IN
Registration Details
- NPI Number
- 1023428877
- Provider Type
- Individual
- Gender
- Male
- NPI Issued
- May 2, 2014 (12.310545652238 yrs)
- Last Updated
- Dec 15, 2025
- Licenses
-
02005989A (IN)036153911 (IL)2005989A (IN)036153911 (IL)
Practice Information
- Address
-
9410 CALUMET AVE STE 401MUNSTER, IN, 463210018Browse IN providers · Browse ZIP 46321
- Phone
- 2199224900
- Fax
- 2198369922
- Primary Specialty
-
Gastroenterology
207RG0100X
- Additional Specialty
- Internal Medicine
- Additional Specialty
- Gastroenterology
- Additional Specialty
- Gastroenterology
Other Gastroenterology Providers in MUNSTER, IN
| Name | Credential | NPI |
|---|---|---|
| CAROL A. NOETZEL | M.D. | 1841277233 |
| DR. BENJAMIN D. SCHMID | M.D. | 1487680468 |
| DAVID HERBSTMAN | MD | 1841399300 |
| DR. JOEL CAHAN | MD | 1699874156 |
| JOHN L KNIAZ | DO | 1659470110 |
| DR. GENE LEE CHANG | M.D. | 1033240411 |
Data sourced from the NPPES National Provider Identifier registry. This information is for informational purposes only and is not a substitute for verifying credentials with the appropriate licensing authority. For official verification, use the NPPES NPI Registry or the relevant state medical board.