Data from the NPPES registry. May not reflect recent changes — verify at nppes.cms.hhs.gov.
ALEXANDER DUFFY, MD
ActiveALEXANDER DUFFY, MD is a Otolaryngology healthcare provider located in PHILADELPHIA, Pennsylvania. NPI 1639732464 is currently active in the NPPES registry. Verify at CMS.
Otolaryngology · PHILADELPHIA, PA
Registration Details
- NPI Number
- 1639732464
- Provider Type
- Individual
- Gender
- Male
- NPI Issued
- Apr 17, 2019 (7.3722784579718 yrs)
- Last Updated
- Jan 16, 2026
- License
-
MD490457 (PA)
Practice Information
- Address
-
3509 N BROAD STPHILADELPHIA, PA, 191404105Browse PA providers · Browse ZIP 19140
- Phone
- 8445701767
- Fax
- 2157076676
- Primary Specialty
-
Otolaryngology
207Y00000X
Other Otolaryngology Providers in PHILADELPHIA, PA
| Name | Credential | NPI |
|---|---|---|
| AHMED M SOLIMAN | MD | 1598753667 |
| GLENN C ISAACSON | MD | 1104814078 |
| DR. PAUL COLONIUS JOHNSON IV | M.D. | 1902895782 |
| DONALD GREGORY FARWELL | M.D. | 1972587525 |
| CECELIA ELIZABETH SCHMALBACH | M.D. | 1104804558 |
| MATTHEW JOEL NAGORSKY | MD | 1780655738 |
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.