NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Stephen Edward Winikoff, M.D.

Surgery Physician in Jacksonville, FL · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1932127677

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Stephen Edward Winikoff
Credential M.D.
Sex Male
Practice address 14540 Old Saint Augustine Rd Ste 2571, Jacksonville, FL, 32258
Phone (904) 886-2251
Enumeration date Jul 18, 2006
Last updated in NPPES Mar 31, 2026

Taxonomy & licenses

2086X0206X Surgical Oncology Physician Allopathic & Osteopathic Physicians · License 22925 (WV) Secondary
208600000X Surgery Physician Allopathic & Osteopathic Physicians · License ME179677 (FL) Primary
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
807570700 Medicaid ID -
KAV65 Other - BLUE CROSS OF IDAHO
8458754 Medicaid WA -
000010158540 Other - BLUE SHIELD OF IDAHO
0211573 Other - LABOR & INDUSTRIES
7608856 Other - AETNA
7676WI Other - ASURIS NW HEALTH
22925 Other WV HEALTH PLAN OF THE UPPER
3810010434 Medicaid WV -
001994184 Other WV MOUNTAIN STATE BLUE CROSS

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 → Validate an NPI →

Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Stephen Winikoff?
Stephen Winikoff is registered in NPPES with the primary taxonomy of Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-31.