Patrick Duffy, MD
Patrick Duffy is a Vascular Surgery Physician provider (Surgery) practicing in Rock Hill, SC, registered in the NPPES registry with NPI 1477726271 since 2008. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1477726271 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Patrick Duffy |
| Credential | MD |
| Sex | Male |
| Practice address | 222 HERLONG AVE S, Rock Hill, SC, 29732 |
| Phone | 8033291234 |
| Fax | 8033281785 |
| Enumeration date | 2008-04-12 |
| Last updated in NPPES | 2025-08-11 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 208600000X | Surgery Physician | Secondary | M9261 | TX |
| 2086S0129X | Vascular Surgery Physician | Secondary | 91032 | SC |
| 2086S0129X | Vascular Surgery Physician | Secondary | 34507 | NH |
| 2086S0129X | Vascular Surgery Physician | Primary | 2023020247 | MO |
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 |
|---|---|---|---|
| 3149044 | Medicaid | NH | — |
Copy-ready billing details
Provider: Patrick Duffy, MD NPI: 1477726271 Taxonomy: 2086S0129X (Vascular Surgery Physician) Address: 222 HERLONG AVE S, Rock Hill, SC, 29732
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1467456921 | John Mitchell | Individual | Trauma Surgery Physician | Rock Hill, SC |
| 1881664795 | Robert Grumbach | Individual | Obstetrics & Gynecology Physician | Rock Hill, SC |
| 1023061827 | Gregory Jones | Individual | Vascular & Interventional Radiology Physician | Rock Hill, SC |
| 1215026570 | Heather Leslie-Brown | Individual | Obstetrics & Gynecology Physician | Rock Hill, SC |
| 1790865020 | Melissa Fenner | Individual | Emergency Medicine Physician | Rock Hill, SC |
| 1174676829 | Daniel Mcdevitt | Individual | Vascular Surgery Physician | Rock Hill, SC |
| 1114040516 | Patrick Ryan | Individual | Pediatrics Physician | Rock Hill, SC |
| 1295951903 | Jamila Crawford | Individual | Obstetrics & Gynecology Physician | Rock Hill, SC |
Verify this record
Cross-check NPI 1477726271 against the authoritative CMS record: view Patrick Duffy 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
Is NPI 1477726271 active?
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2025-08-11.