Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Angel E. Diaz Serrano, M.D.

General Practice Physician in Cayey, PR · enumerated 2006.

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

National Provider Identifier

1184693772

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Registry record

Entity type Individual (Type 1)

Name Angel E. Diaz Serrano

Credential M.D.

Sex Male

Practice address Cayey, PR, 00736

Phone (787) 263-9944

Fax (787) 263-9944

Enumeration date Mar 16, 2006

Last updated in NPPES Jul 15, 2017

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License 14419 (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
400229	Other	PR	MEDICARE Y MUCHO MAS
84750DI	Other	PR	TRIPLE S

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 Angel Diaz Serrano's NPI record?

Cross-check NPI 1184693772 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1184693772 active?

Yes, as of the latest NPPES snapshot, NPI 1184693772 is active (record last updated 2017-07-15).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-07-15.