Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Clayton Lee Foster, MD

Infectious Disease Physician in Kailua Kona, HI · enumerated 2011 · practices at Ali'I Health Center.

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

National Provider Identifier

1003105255

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Registry record

Entity type Individual (Type 1)

Name Dr. Clayton Lee Foster

Credential MD

Sex Male

Practice address 78-6831 Alii Dr Ste 422, Kailua Kona, HI, 96740

Phone (808) 747-8321

Fax (808) 322-6005

Enumeration date Mar 28, 2011

Last updated in NPPES Jul 6, 2022

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License DR.0054823 (CO) Secondary

207RI0200X Infectious Disease Physician Allopathic & Osteopathic Physicians · License CDRH.0054823 (CO) Secondary

207RI0200X Infectious Disease Physician Allopathic & Osteopathic Physicians · License DR.00654823 (CO) Secondary

207RI0200X Infectious Disease Physician Allopathic & Osteopathic Physicians · License MD-22161 (HI) 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
42132738	Medicaid	CO	-

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 Clayton Foster practice?

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

What is the NPI number for Clayton Foster?

The National Provider Identifier (NPI) for Clayton Foster is 1003105255, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-06.