Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jerome T Hanson, M.D.

Gastroenterology Physician in West Allis, WI · enumerated 2006.

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

National Provider Identifier

1215999065

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Registry record

Entity type Individual (Type 1)

Name Jerome T Hanson

Credential M.D.

Sex Male

Practice address 2424 S 90th St, Suite 306, West Allis, WI, 53227

Phone (414) 328-8750

Fax (414) 328-8751

Enumeration date Apr 6, 2006

Last updated in NPPES Dec 22, 2021

Taxonomy & licenses

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License 19476 (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
30199600	Medicaid	WI	-
P00734833	Other	WI	RR MEDICARE

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 Jerome Hanson?

Jerome Hanson is registered in NPPES with the primary taxonomy of Gastroenterology 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 2021-12-22.