NPI Portal NPI Lookup & Verification

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

Mrs. Mildred Rios Rivera, MD

Occupational Medicine Physician in Carolina, PR · enumerated 2008.

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

National Provider Identifier

1790934693

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mrs. Mildred Rios Rivera
Credential MD
Sex Female
Practice address Carolina, PR, 00983
Enumeration date Sep 16, 2008
Last updated in NPPES Sep 16, 2008

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

Taxonomy & licenses

2083X0100X Occupational Medicine Physician Allopathic & Osteopathic Physicians · License 6666 (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 Mildred Rios Rivera practice?
The practice location on file with NPPES is in Carolina, PR. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mildred Rios Rivera?
The National Provider Identifier (NPI) for Mildred Rios Rivera is 1790934693, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-09-16.