Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael Pierson, MD

Anesthesiology Physician in Green Bay, WI · enumerated 2005.

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

National Provider Identifier

1295723948

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Registry record

Entity type Individual (Type 1)

Name Michael Pierson

Credential MD

Sex Male

Practice address 2845 Greenbrier Rd, Green Bay, WI, 54311

Phone (877) 229-0273

Fax (920) 288-4863

Enumeration date Oct 7, 2005

Last updated in NPPES Jul 27, 2023

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License 34550-020 (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
1295723948	Medicaid	WI	-
000745170	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

What is the NPI number for Michael Pierson?

The National Provider Identifier (NPI) for Michael Pierson is 1295723948, a Type 1 (individual) record in the CMS NPPES registry.

Where does Michael Pierson practice?

The practice location on file with NPPES is in Green Bay, WI. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-07-27.