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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Grant T Fankhauser, M.D.

Vascular Surgery Physician in Peoria, AZ · enumerated 2006.

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

National Provider Identifier

1831121532

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Registry record

Entity type Individual (Type 1)
Name Dr. Grant T Fankhauser
Credential M.D.
Sex Male
Practice address 9192 W Union Hills Dr, Peoria, AZ, 85382
Phone (602) 374-4101
Fax (602) 441-0522
Enumeration date Jul 6, 2006
Last updated in NPPES Aug 9, 2024

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 37503 (AZ) Secondary
2086S0129X Vascular Surgery Physician Allopathic & Osteopathic Physicians · License 37503 (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
705707 Medicaid 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

How do I verify Grant Fankhauser's NPI record?
Cross-check NPI 1831121532 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1831121532 active?
Yes, as of the latest NPPES snapshot, NPI 1831121532 is active (record last updated 2024-08-09).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-08-09.