Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum
Mark Seby MD PC
Family Medicine Physician in Flagstaff, AZ · enumerated 2008 · authorized official Mark Seby, Physician.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1477726222
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Registry record
Taxonomy & classification
Authorized official
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 080008588 | Other | AZ | RAILROAD MEDICARE |
| 5447372 | Other | AZ | AETNA |
| 87726 | Other | AZ | UNITED HEALTHCARE |
| 3323257 | Other | AZ | CIGNA |
| 1Z8845 | Other | AZ | HEALTHNET AZ |
| 188857300 | Other | AZ | US DEPT OF LABOR |
| 23957601 | Medicaid | AZ | - |
| 71412 | Other | AZ | MUTUAL OF OMAHA |
| AZ0021730 | Other | AZ | BLUE CROSS BLUE SHIELD 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.
Frequently asked questions
What is the NPI number for Mark Seby MD PC?
Who is the authorized official for Mark Seby MD PC?
Providers at this address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-12-30.