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

Dr. Roberto E. Maiz, MD

Surgery Physician in San German, PR · enumerated 2006.

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

National Provider Identifier

1437125713

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Registry record

Entity type Individual (Type 1)

Name Dr. Roberto E. Maiz

Credential MD

Sex Male

Practice address San German, PR, 00683

Phone (787) 892-3318

Fax (787) 892-9290

Enumeration date Feb 27, 2006

Last updated in NPPES Jul 30, 2025

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

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 12998 (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.

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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 Roberto Maiz?

Roberto Maiz 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

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Ramon Davila Ortiz Orthopaedic Trauma Physician · San German, PR NPI 1497743348 Eddanys Martinez Internal Medicine Physician · San German, PR NPI 1407831514 David Bermudez Nunez Cardiovascular Disease Physician · San German, PR NPI 1215970405 Carlos Grana Dentist · San German, PR NPI 1275618605 Hostos Fernandez Caamano Obstetrics & Gynecology Physician · San German, PR NPI 1316000458 Ruben Alvarez MD, Csp Internal Medicine Physician · San German, PR NPI 1619155785 Yauco Cardiology Group LLC Cardiovascular Disease Physician · San German, PR NPI 1558727438 Integrated Cardiovascular Services Group LLC Cardiovascular Disease Physician · San German, PR NPI 1841658705

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-30.