Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Rafael De Ayala
Surgery Physician in San Juan, PR · enumerated 2013.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1497195275
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Registry record
Entity type Individual (Type 1)
Name Rafael De Ayala
Sex Male
Practice address University District Hospital Puerto Rico Medical Center, Bo Monacillos, San Juan, PR, 00935
Phone (787) 754-0101
Enumeration date Jun 26, 2013
Last updated in NPPES Jul 9, 2020
Taxonomy & licenses
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
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.
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 Rafael De Ayala?
Rafael De Ayala is registered in NPPES with the primary taxonomy of Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Melissa Santiago Garraton Emergency Medicine Physician · San Juan, PR NPI 1336436658 Juan Marquez Neurological Surgery Physician · San Juan, PR NPI 1669720959 Jomar Diaz Dentist · San Juan, PR NPI 1619383981 Nicolle Medina Cintron Rheumatology Physician · San Juan, PR NPI 1912308669 Walter Morales Borrero Diagnostic Radiology Physician · San Juan, PR NPI 1255718540 Alejandro Quilichini Oliver Cardiovascular Disease Physician · San Juan, PR NPI 1285081430 Alvaro Gracia Ramis Surgery Physician · San Juan, PR NPI 1144677196 Noelia Baez Rivera Infectious Disease Physician · San Juan, PR NPI 1871941591
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-07-09.