Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Joseph O Aiyenowo, MD

Internal Medicine Physician in Pullman, WA · enumerated 2006 · practices at Palouse Medical Ps.

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

National Provider Identifier

1598792657

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Registry record

Entity type Individual (Type 1)

Name Joseph O Aiyenowo

Credential MD

Sex Male

Practice address 825 Se Bishop Blvd Ste 200, Pullman, WA, 99163

Phone (509) 332-2517

Fax (509) 334-9247

Enumeration date Jun 26, 2006

Last updated in NPPES Jun 25, 2024

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License MD60992612 (WA) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD60992612 (WA) Primary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 04-27421 (KS) Secondary

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 0427421 (KS) Secondary

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
100381040C	Medicaid	KS	-

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 Joseph Aiyenowo practice?

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

What is the NPI number for Joseph Aiyenowo?

The National Provider Identifier (NPI) for Joseph Aiyenowo is 1598792657, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Benno Mohr Internal Medicine Physician · Pullman, WA NPI 1275515058 Timothy Moody Public Health & General Preventive Medicine Physician · Pullman, WA NPI 1396773222 Palouse Medical Ps Family Medicine Physician · Pullman, WA NPI 1548299696 Stephen Hall Family Medicine Physician · Pullman, WA NPI 1740211184 Dennis Simpson Internal Medicine Physician · Pullman, WA NPI 1316979644 Christopher Iacobelli Family Medicine Physician · Pullman, WA NPI 1649295866 Leslie Robison Health Service Psychologist · Pullman, WA NPI 1861584328 Sue Cole Medical Physician Assistant · Pullman, WA NPI 1437234036

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-06-25.