Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ralph H. Maeda Jr., M.D.

Surgery Physician in Mission Viejo, CA · enumerated 2005.

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

National Provider Identifier

1902806136

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Registry record

Entity type Individual (Type 1)

Name Ralph H. Maeda Jr.

Credential M.D.

Sex Male

Practice address 26732 Crown Valley Pkwy, Suite 351, Mission Viejo, CA, 92691

Phone (949) 364-1007

Fax (949) 364-6057

Enumeration date Jul 29, 2005

Last updated in NPPES May 21, 2010

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License G43462 (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
WG43462A	Other	CA	PIN

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

How do I verify Ralph Maeda's NPI record?

Cross-check NPI 1902806136 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1902806136 active?

Yes, as of the latest NPPES snapshot, NPI 1902806136 is active (record last updated 2010-05-21).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-05-21.