Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Donald Andrew Dinwoodie, M.D.

Specialist in Santa Ana, CA · enumerated 2005.

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

National Provider Identifier

1114910825

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Registry record

Entity type Individual (Type 1)

Name Dr. Donald Andrew Dinwoodie

Credential M.D.

Sex Male

Practice address 1401 N Tustin Ave, Suite 355, Santa Ana, CA, 92705

Phone (714) 573-7060

Fax (714) 573-7061

Enumeration date Aug 27, 2005

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

174400000X Specialist Other Service Providers · License A43965 (CA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 Donald Dinwoodie practice?

The practice location on file with NPPES is in Santa Ana, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Donald Dinwoodie?

The National Provider Identifier (NPI) for Donald Dinwoodie is 1114910825, 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 2007-07-08.