Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Oscar Antonio Aguirre, M.D.

Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician in Parker, CO · enumerated 2006 · practices at Oscar A Aguirre MD Inc.

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

National Provider Identifier

1477651719

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Registry record

Entity type Individual (Type 1)

Name Dr. Oscar Antonio Aguirre

Credential M.D.

Sex Male

Practice address 11953 Lioness Way, Suite 101, Parker, CO, 80134

Phone (303) 322-0500

Fax (303) 322-0772

Enumeration date Sep 20, 2006

Last updated in NPPES May 15, 2019

Taxonomy & licenses

207VG0400X Gynecology Physician Allopathic & Osteopathic Physicians · License 36046 (CO) Secondary

207VF0040X Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician Allopathic & Osteopathic Physicians · License 970434 (CO) 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
841500572	Other	CO	HUMANA
319108	Other	CO	ANTHEM BLUE CROSS
400398	Other	CO	GREAT WEST
160045201	Other	CO	RAILROAD MEDICARE
512315336	Other	CO	CHAMPUS
84150057202	Other	CO	ROCKY MOUNTAIN HEALTH PLA
84150057202	Other	CO	PACIFICARE
1360460	Medicaid	CO	-
5729546	Other	CO	AETNA
212490	Other	CO	US HEALTHCARE
84150057202	Other	CO	SECURE HORIZONS

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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Oscar Aguirre?

Oscar Aguirre is registered in NPPES with the primary taxonomy of Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Oscar A Aguirre MD Inc Gynecology Physician · Parker, CO NPI 1255421947

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-05-15.