Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gregory M. Culen, M.D.

Hospitalist Physician in Racine, WI · enumerated 2006.

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

National Provider Identifier

1912937947

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Registry record

Entity type Individual (Type 1)

Name Gregory M. Culen

Credential M.D.

Sex Male

Practice address 3807 Spring St, Racine, WI, 53405

Phone (262) 687-8300

Enumeration date Jul 4, 2006

Last updated in NPPES Aug 22, 2023

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 42223 (WI) Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 42223-20 (WI) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 Gregory Culen?

Gregory Culen is registered in NPPES with the primary taxonomy of Hospitalist Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Eva Alessia Pediatrics Physician · Mount Pleasant, WI NPI 1871586859 Kimberly Granger Family Nurse Practitioner · Racine, WI NPI 1245227248 Sachin Panchal Internal Medicine Physician · Mount Pleasant, WI NPI 1114978699 Michelle Snyderman Pediatrics Physician · Racine, WI NPI 1821040684 Stephen Flox Pediatric Adolescent Medicine Physician · Racine, WI NPI 1346277670 Patricia Bolling Pediatric Nurse Practitioner · Racine, WI NPI 1972530269 Rudy Byron Family Medicine Physician · Racine, WI NPI 1376573386 Paul Durbin Internal Medicine Physician · Racine, WI NPI 1255361218

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-08-22.