Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Thomas Simpkins, CRNA

Certified Registered Nurse Anesthetist in Berlin, WI · enumerated 2005.

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

National Provider Identifier

1356325179

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Registry record

Entity type Individual (Type 1)

Name Mr. Thomas Simpkins

Credential CRNA

Sex Male

Practice address 225 Memorial Dr, Berlin, WI, 54923

Phone (920) 361-5538

Fax (920) 361-5499

Enumeration date Dec 5, 2005

Last updated in NPPES Oct 24, 2014

Taxonomy & licenses

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License 2968-33 (WI) Primary

163W00000X Registered Nurse Nursing Service Providers · License 155599-30 (WI) Secondary

CRNA · Certified Registered Nurse Anesthetist: An advanced practice nurse specializing in anesthesia care. About the CRNA credential

Other identifiers

Identifier	Type	State	Issuer
1356325179	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.

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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 Thomas Simpkins?

Thomas Simpkins is registered in NPPES with the primary taxonomy of Certified Registered Nurse Anesthetist. 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 2014-10-24.