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Dr. Mark V Seby, M.D.

Family Medicine Physician in Flagstaff, AZ · enumerated 2005 · practices at Mark Seby MD PC.

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

National Provider Identifier

1649277492

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Registry record

Entity type Individual (Type 1)
Name Dr. Mark V Seby
Credential M.D.
Sex Male
Practice address 417 N Agassiz St, Bldg 1, Flagstaff, AZ, 86001
Phone (928) 779-6169
Fax (928) 779-4200
Enumeration date Jul 7, 2005
Last updated in NPPES Dec 30, 2010

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License ZA11476 (AZ) 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
87726 Other AZ UNITED HEALTH CARE
23957601 Medicaid AZ -
1Z8845 Other AZ HEALTH NET AZ
5447372 Other AZ AETNA
Z63389 Other AZ MEDICARE GROUP
1003440 Other AZ CIGNA
71412 Other AZ MUTUAL OF OMAHA
080008588 Other AZ RAILROAD MEDICARE
AZ0021730 Other AZ BCBS AZ

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

What is the NPI number for Mark Seby?
The National Provider Identifier (NPI) for Mark Seby is 1649277492, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mark Seby practice?
The practice location on file with NPPES is in Flagstaff, AZ. 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 2010-12-30.