NPI Portal NPI Lookup & Verification

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

Dr. Ray Herman Rivas, M.D.

Psychiatry Physician in San Luis Obispo, CA · enumerated 2012 · practices at Innerbloom Ketamine Therapy.

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

National Provider Identifier

1003173816

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Ray Herman Rivas
Credential M.D.
Sex Male
Practice address San Luis Obispo, CA, 93405
Phone (805) 321-8471
Fax (805) 567-6604
Enumeration date Apr 18, 2012
Last updated in NPPES Feb 3, 2026

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

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License A164066 (CA) Secondary
2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License A164066 (CA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
A164066 Other CA MEDICAL BOARD OF CALIFORNIA

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

What is the NPI number for Ray Rivas?
The National Provider Identifier (NPI) for Ray Rivas is 1003173816, a Type 1 (individual) record in the CMS NPPES registry.
Where does Ray Rivas practice?
The practice location on file with NPPES is in San Luis Obispo, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-03.