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Dr. Gregg A Nowak, DC

Chiropractor in Greenfield, WI · enumerated 2006.

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

National Provider Identifier

1760540611

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Registry record

Entity type Individual (Type 1)
Name Dr. Gregg A Nowak
Credential DC
Sex Male
Practice address 4600 W Loomis Rd Ste 110, Greenfield, WI, 53220
Phone (414) 481-1021
Fax (414) 481-3044
Enumeration date Dec 4, 2006
Last updated in NPPES Jul 21, 2022

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 2104 (WI) Primary
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Other identifiers

Identifier Type State Issuer
70560 Other - MEDICARE PIN

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.

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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 Gregg Nowak?
Gregg Nowak is registered in NPPES with the primary taxonomy of Chiropractor. 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 2022-07-21.