John F Gallagher, MD
John F Gallagher is a Vascular Surgery Physician provider (Surgery) practicing in West Islip, NY, registered in the NPPES registry with NPI 1740201508 since 2006. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1740201508 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | John F Gallagher |
| Credential | MD |
| Sex | Male |
| Practice address | 580 UNION BLVD, West Islip, NY, 11795 |
| Phone | 6313216801 |
| Fax | 6313213869 |
| Enumeration date | 2006-07-21 |
| Last updated in NPPES | 2011-08-30 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 208600000X | Surgery Physician | Secondary | 1247381 | NY |
| 2086S0129X | Vascular Surgery Physician | Primary | 1247381 | NY |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 00717886 | Medicaid | NY | — |
Copy-ready billing details
Provider: John Gallagher, MD NPI: 1740201508 Taxonomy: 2086S0129X (Vascular Surgery Physician) Address: 580 UNION BLVD, West Islip, NY, 11795
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1265479331 | Way Lee | Individual | Surgery Physician | West Islip, NY |
| 1881628683 | John Simon | Individual | Surgery Physician | West Islip, NY |
| 1275553547 | Michael Sacca | Individual | Vascular Surgery Physician | West Islip, NY |
| 1891832572 | Great South Bay Surgical Associates and Vascular Lab, LLP | Organization | Surgery Physician | West Islip, NY |
| 1912024175 | John W Francfort M D P C | Organization | Surgery Physician | West Islip, NY |
| 1902078496 | John F. Gallagher, M.D., P.C. | Organization | Surgery Physician | West Islip, NY |
| 1356513840 | Ellen C. Mccormick, M.D., P.C. | Organization | Surgery Physician | West Islip, NY |
| 1538331046 | Edward M. Timmins, D.O., P.C. | Organization | Surgery Physician | West Islip, NY |
Verify this record
Cross-check NPI 1740201508 against the authoritative CMS record: view John F Gallagher 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 2011-08-30.