Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Peter Bernard Wollschlaeger, M.D., M.P.H

Family Medicine Physician in Bay City, MI · enumerated 2007.

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

National Provider Identifier

1245364504

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Registry record

Entity type Individual (Type 1)

Name Dr. Peter Bernard Wollschlaeger

Credential M.D., M.P.H

Sex Male

Practice address 1111 N Water St Ste 201, Bay City, MI, 48708

Phone (517) 974-6227

Enumeration date Mar 16, 2007

Last updated in NPPES Apr 28, 2025

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 4301068371 (MI) 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
0P31090	Other	-	GROUP # MEDICARE
0N77190	Other	MI	GROUP MEDICARE ID
0N77190004	Other	MI	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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Peter Wollschlaeger?

The National Provider Identifier (NPI) for Peter Wollschlaeger is 1245364504, a Type 1 (individual) record in the CMS NPPES registry.

Where does Peter Wollschlaeger practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-04-28.