Dr. Sean C Duffy, D.C.
Dr. Sean C Duffy is a Chiropractor provider (Chiropractor) practicing in Appleton, WI, registered in the NPPES registry with NPI 1083682348 since 2006. The credential DC stands for Doctor of Chiropractic.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1083682348 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Sean C Duffy |
| Credential | D.C. |
| Sex | Male |
| Practice address | Appleton, WI, 54914 |
| Phone | 9207339330 |
| Fax | 9207337220 |
| Enumeration date | 2006-03-10 |
| Last updated in NPPES | 2010-11-16 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 111N00000X | Chiropractor | Primary | 3260 | WI |
DC — Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 38892200 | Medicaid | WI | — |
Copy-ready billing details
Provider: Sean Duffy, D.C. NPI: 1083682348 Taxonomy: 111N00000X (Chiropractor) Address: Appleton, WI, 54914
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1376653295 | Karl Huiting | Individual | Chiropractor | Appleton, WI |
| 1811090947 | Steven Weber | Individual | General Practice Dentistry | Appleton, WI |
| 1508600446 | Casey Rosendahl | Individual | Chiropractor | Appleton, WI |
Verify this record
Cross-check NPI 1083682348 against the authoritative CMS record: view Dr. Sean C 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
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Where does Sean Duffy practice?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2010-11-16.