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Garrett L. Watanabe, MD

Child & Adolescent Psychiatry Physician in Cupertino, CA · enumerated 2006 · practices at Hamaguchi & Associates Pediatric Speech-Language Pathologists, Inc..

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

National Provider Identifier

1851477376

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Registry record

Entity type Individual (Type 1)
Name Garrett L. Watanabe
Credential MD
Sex Male
Practice address 20380 Town Center Ln, Suite 215, Cupertino, CA, 95014
Phone (408) 996-7950
Fax (408) 996-7997
Enumeration date Oct 27, 2006
Last updated in NPPES Jul 12, 2012

Taxonomy & licenses

2084P0804X Child & Adolescent Psychiatry Physician Allopathic & Osteopathic Physicians · License A74445 (CA) 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
00A744450 Medicaid CA -

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 Garrett Watanabe's NPI record?
Cross-check NPI 1851477376 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1851477376 active?
Yes, as of the latest NPPES snapshot, NPI 1851477376 is active (record last updated 2012-07-12).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-07-12.