Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ricardo E Aguirre, MD

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Danville, CA · enumerated 2006.

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

National Provider Identifier

1699739219

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Registry record

Entity type Individual (Type 1)

Name Ricardo E Aguirre

Credential MD

Sex Male

Practice address 1320 El Capitan Dr, Ste 120, Danville, CA, 94526

Phone (925) 676-2600

Fax (925) 689-3102

Enumeration date Apr 12, 2006

Last updated in NPPES Jan 25, 2013

Taxonomy & licenses

208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Allopathic & Osteopathic Physicians · License A299230 (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
00A299230	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 Ricardo Aguirre practice?

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

What is the NPI number for Ricardo Aguirre?

The National Provider Identifier (NPI) for Ricardo Aguirre is 1699739219, 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 2013-01-25.