Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Arturo J Lopez Rivera, M.D.

Physical Medicine & Rehabilitation Physician in Mayaguez, PR · enumerated 2006.

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

National Provider Identifier

1578532941

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Registry record

Entity type Individual (Type 1)

Name Arturo J Lopez Rivera

Credential M.D.

Sex Male

Practice address 357 Ave Hostos Office Park II, Suite 205, Mayaguez, PR, 00680

Phone (787) 265-0255

Fax (787) 265-0255

Enumeration date Mar 16, 2006

Last updated in NPPES Jan 17, 2014

Taxonomy & licenses

208100000X Physical Medicine & Rehabilitation Physician Allopathic & Osteopathic Physicians · License 12231 (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

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 Arturo Lopez Rivera?

Arturo Lopez Rivera is registered in NPPES with the primary taxonomy of Physical Medicine & Rehabilitation Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-01-17.