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

Dr. Gregory Raymond Riva, M.D.

Cardiovascular Disease Physician in Hemet, CA · enumerated 2007 · practices at Anil Rastogi MD Inc.

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

National Provider Identifier

1700088630

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Registry record

Entity type Individual (Type 1)
Name Dr. Gregory Raymond Riva
Credential M.D.
Sex Male
Practice address Hemet, CA, 92543
Phone (951) 652-5555
Fax (951) 766-2056
Enumeration date Jun 4, 2007
Last updated in NPPES Sep 26, 2022

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

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A94572 (CA) Secondary
207RC0001X Clinical Cardiac Electrophysiology Physician Allopathic & Osteopathic Physicians · License A94572 (CA) Secondary
207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License A94572 (CA) 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

What is the NPI number for Gregory Riva?
The National Provider Identifier (NPI) for Gregory Riva is 1700088630, a Type 1 (individual) record in the CMS NPPES registry.
Where does Gregory Riva practice?
The practice location on file with NPPES is in Hemet, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-09-26.