NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Michael C. Wu, M.D.

Psychiatry Physician in Brea, CA · enumerated 2005.

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

National Provider Identifier

1679573885

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Registry record

Entity type Individual (Type 1)
Name Dr. Michael C. Wu
Credential M.D.
Sex Male
Practice address Brea, CA, 92821
Phone (714) 276-2930
Fax (714) 256-9013
Enumeration date Jul 29, 2005
Last updated in NPPES Feb 9, 2011

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License A81748 (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
00A817480 Other CA BLUE SHIELD OF CALIFORNIA
815601000 Other - MAGELLAN
2124635 Other - CCN/FIRST HEALTH
2244951 Other - CIGNA BEHAVIORAL HEALTH
365137 Other - MANAGED HEALTH NETWORK
548947 Other - VALUE OPTIONS
00A817480 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

Where does Michael Wu practice?
The practice location on file with NPPES is in Brea, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Michael Wu?
The National Provider Identifier (NPI) for Michael Wu is 1679573885, 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 2011-02-09.