Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Dr. Carlos M. Martinez Rivera Csp

Endocrinology, Diabetes & Metabolism Physician in Mayaguez, PR · enumerated 2007 · authorized official Carlos Martinez Rivera, Own.

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

National Provider Identifier

1437350428

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Registry record

Entity type Organization (Type 2)

Legal business name Dr. Carlos M. Martinez Rivera Csp

Practice address Doctors Center Suite 204, Calle Nelson Perea 27, Mayaguez, PR, 00680

Phone (787) 636-9154

Fax (787) 805-0620

Enumeration date May 29, 2007

Last updated in NPPES Jul 23, 2007

Taxonomy & classification

207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Carlos Martinez Rivera

Title Own

Phone (787) 805-0595

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

Where is Dr. Carlos M. Martinez Rivera Csp located?

The practice location on file with NPPES is in Mayaguez, PR.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2007-07-23. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-23.