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Heather M Stefaniak, MD

Urology Physician in Green Bay, WI · enumerated 2007.

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

National Provider Identifier

1013139641

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Registry record

Entity type Individual (Type 1)
Name Heather M Stefaniak
Credential MD
Sex Female
Practice address 2845 Greenbrier Rd Ste 240, Green Bay, WI, 54311
Phone (920) 288-8280
Fax (920) 288-8285
Enumeration date May 3, 2007
Last updated in NPPES Aug 26, 2008

Taxonomy & licenses

208800000X Urology Physician Allopathic & Osteopathic Physicians · License 51127 (WI) 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
35105300 Medicaid WI -

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 Heather Stefaniak?
Heather Stefaniak is registered in NPPES with the primary taxonomy of Urology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-08-26.