Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark A Walker, M.D.

Q: What is the NPI number for Mark Walker?

The National Provider Identifier (NPI) for Mark Walker is 1306819321, a Type 1 (individual) record in the CMS NPPES registry.

Obstetrics & Gynecology Physician in Marshall, MI · enumerated 2006.

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

National Provider Identifier

1306819321

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Registry record

Entity type Individual (Type 1)

Name Dr. Mark A Walker

Credential M.D.

Sex Male

Practice address 215 E Mansion St, Suite 3d, Marshall, MI, 49068

Phone (269) 781-1183

Fax (269) 781-9248

Enumeration date Feb 9, 2006

Last updated in NPPES Jan 28, 2011

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 4301056472 (MI) Secondary

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 4301056472 (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
0130103	Other	MA	BCBS
3131409	Medicaid	MI	-
P87680	Other	MI	BLUE CHOICE & BLUE CARE

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

Where does Mark Walker practice?

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

What is the NPI number for Mark Walker?

The National Provider Identifier (NPI) for Mark Walker is 1306819321, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Suzanne Vandenbrink-Webb Obstetrics & Gynecology Physician · Marshall, MI NPI 1609856046 Mansion Street Obstetrics & Gynecology PC Obstetrics Physician · Marshall, MI NPI 1225001266 Elizabeth Ledyard Physician Assistant · Marshall, MI NPI 1811960859 Thomas Neidlinger Family Medicine Physician · Marshall, MI NPI 1124094057 Mark Richardson Family Medicine Physician · Marshall, MI NPI 1669449443 Guy Power Gastroenterology Physician · Marshall, MI NPI 1265409429 The Doctors Group P.C. Otolaryngology Physician · Marshall, MI NPI 1710939954 Michael Sterrett Otolaryngology Physician · Marshall, MI NPI 1235183039

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-01-28.