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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Peter Y Yamamoto, M.D.

Psychiatry Physician in Waianae, HI · enumerated 2007.

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

National Provider Identifier

1386796589

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Registry record

Entity type Individual (Type 1)
Name Peter Y Yamamoto
Credential M.D.
Sex Male
Practice address 86-226 Farrington Hwy, Waianae, HI, 96792
Fax (808) 696-5516
Enumeration date Jan 17, 2007
Last updated in NPPES Jul 9, 2007

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License MD-12004 (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
0053794601 Medicaid HI -
0000240929 Other HI HMSA
0053794600 Other HI ALOHA CARE

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

Is NPI 1386796589 active?
Yes, as of the latest NPPES snapshot, NPI 1386796589 is active (record last updated 2007-07-09).
How do I verify Peter Yamamoto's NPI record?
Cross-check NPI 1386796589 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.