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

Robert Castro, MD

Interventional Pain Medicine Physician in Mayaguez, PR · enumerated 2006.

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

National Provider Identifier

1548368459

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Registry record

Entity type Individual (Type 1)

Name Robert Castro

Credential MD

Sex Male

Practice address Mayaguez, PR, 00680

Phone (787) 834-2994

Fax (787) 986-7070

Enumeration date Sep 21, 2006

Last updated in NPPES Nov 30, 2011

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

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License 9945 (PR) Secondary

208VP0014X Interventional Pain Medicine Physician Allopathic & Osteopathic Physicians · License 9945 (PR) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 does Robert Castro practice?

The practice location on file with NPPES is in Mayaguez, PR. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Robert Castro?

The National Provider Identifier (NPI) for Robert Castro is 1548368459, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Jesus Becerra Escobar Anesthesiology Physician · Mayaguez, PR NPI 1154429066

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-11-30.