John Duggan
John Duggan is a Surgery Physician provider (Surgery) practicing in Bethesda, MD, registered in the NPPES registry with NPI 1255821237 since 2018.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1255821237 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | John Duggan |
| Sex | Male |
| Practice address | GENERAL SURGERY RESIDENCY PROGRAM, WALTER REED NMMC, 8901 WISCONSIN AVE, Bethesda, MD, 20889 |
| Phone | 3014002185 |
| Enumeration date | 2018-05-15 |
| Last updated in NPPES | 2024-07-05 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 390200000X | Student in an Organized Health Care Education/Training Program | Secondary | — | — |
| 208600000X | Surgery Physician | Primary | 0101268287 | VA |
Copy-ready billing details
Provider: John Duggan NPI: 1255821237 Taxonomy: 208600000X (Surgery Physician) Address: GENERAL SURGERY RESIDENCY PROGRAM, WALTER REED NMMC, 8901 WISCONSIN AVE, Bethesda, MD, 20889
Verify this record
Cross-check NPI 1255821237 against the authoritative CMS record: view John Duggan on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2024-07-05.