Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Yvonne O Casta Vega, MD

Hospitalist Physician in Ponce, PR · enumerated 2006.

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

National Provider Identifier

1124186812

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Registry record

Entity type Individual (Type 1)

Name Mrs. Yvonne O Casta Vega

Credential MD

Sex Female

Practice address Edificio Concordia Suite 501, Calle Concordia 8129, Ponce, PR, 00717

Phone (787) 841-9319

Enumeration date Dec 5, 2006

Last updated in NPPES Jun 17, 2013

Taxonomy & licenses

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 7637 (PR) 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
29534	Medicaid	PR	-
7170068	Other	-	HUMANA

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

What specialty is Yvonne Casta Vega?

Yvonne Casta Vega is registered in NPPES with the primary taxonomy of Hospitalist Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-06-17.