WILLIAM M PETERSEN MD
NPI 1225050891
Family Medicine in Walker, MN

Q: What is William Petersen's NPI number?

The NPI number for William Petersen is 1225050891. It was assigned to this individual provider in the NPPES registry on July 24, 2006.

Q: What is William Petersen's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Q: When was this NPI record last updated?

The NPPES record for William Petersen was last updated on November 18, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since July 24, 2006

614 MICHIGAN AVE, WALKER, MN 56484(218) 547-3938(218) 547-3922 Get Directions Write a Review

NPPES record last updated: November 18, 2011. Verified against the NPPES registry weekly; last sync: August 16, 2026.

On this page

About William M Petersen Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WILLIAM M PETERSEN MD (NPI 1225050891) is an individual family medicine provider in Walker, Minnesota, licensed in Minnesota (29875) and active in the NPI registry since July 2006.

NPPES Registry Identity

NPI1225050891

Entity TypeIndividualMale

Primary Taxonomy207Q00000X

Provider Legal NameWILLIAM M PETERSENCredential: MD

Location Address614 MICHIGAN AVEWalker, MN 56484-1390

Mailing Address614 Michigan AveWalker, MN 56484-1390 · (218) 547-3938 · Fax (218) 547-3922

Phone(218) 547-3938

Fax(218) 547-3922

Sole ProprietorNo

Enumeration DateJuly 24, 2006

Last NPPES UpdateNovember 18, 2011

✔ NPI 1225050891 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

License✔ Licensed in MN · 29875

Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

614 MICHIGAN AVE, Walker, MN 56484

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Other Identifiers 1

Medicare UPINE07136

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Medica.Insurance ›

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CATHERINE JOYCE LOWE PA-C

Physician Assistant (Medical)

614 MICHIGAN AVE
WALKER, MN 56484

Cass County (218) 547-3938

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Petersen's NPI number?

The NPI number for William Petersen is 1225050891. It was assigned to this individual provider in the NPPES registry on July 24, 2006.

Where is William Petersen located?

William Petersen practices at 614 Michigan Ave, Walker, MN 56484. The listed phone number is (218) 547-3938.

What is William Petersen's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

What insurance does William Petersen accept?

Health plans from Medica list William Petersen as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for William Petersen was last updated on November 18, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.