Data from the NPPES registry. May not reflect recent changes — verify at nppes.cms.hhs.gov.
ROBERT ALLAN ALTER, M.D.
ActiveROBERT ALLAN ALTER, M.D. is a Gastroenterology healthcare provider located in CHICAGO, Illinois. NPI 1821064585 is currently active in the NPPES registry. Verify at CMS.
Gastroenterology · CHICAGO, IL
Registration Details
- NPI Number
- 1821064585
- Provider Type
- Individual
- Gender
- Male
- NPI Issued
- Feb 23, 2006 (20.440190836385 yrs)
- Last Updated
- Sep 11, 2025
Practice Information
- Address
-
2545 S KING DRCHICAGO, IL, 606162441Browse IL providers · Browse ZIP 60616
- Phone
- 3128427117
- Fax
- 3123262102
- Primary Specialty
-
Gastroenterology
207RG0300X
- Additional Specialty
- Gastroenterology
Other Gastroenterology Providers in CHICAGO, IL
| Name | Credential | NPI |
|---|---|---|
| RICARDO MACHADO | MD | 1700879434 |
| DR. FIDEL E CASTILLO DIAZ | MD | 1689667347 |
| SIMEON A SEVANDAL JR. | MD | 1528052735 |
| ANNIE JOHN | M.D. | 1225013998 |
| JOHN ARTHUR WILEY | M.D. | 1487612834 |
| MARTIN J GORBIEN | M.D. | 1477502714 |
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.