Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Ria Health PC

Addiction Medicine (Internal Medicine) Physician in San Francisco, CA · enumerated 2018 · authorized official John Mendelson, President.

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

National Provider Identifier

1326539404

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Registry record

Entity type Organization (Type 2)

Legal business name Ria Health PC

Practice address 1390 Market St Ste 200, San Francisco, CA, 94102

Phone (800) 504-5360

Fax (415) 558-1764

Enumeration date May 23, 2018

Last updated in NPPES Dec 28, 2022

Taxonomy & classification

207RA0401X Addiction Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians Primary

2083A0300X Addiction Medicine (Preventive Medicine) Physician Allopathic & Osteopathic Physicians Secondary

2084P0802X Addiction Psychiatry Physician Allopathic & Osteopathic Physicians Secondary

Authorized official

Name John Mendelson

Title President

Phone (415) 652-1167

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 is Ria Health PC located?

The practice location on file with NPPES is in San Francisco, CA.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2022-12-28. Verify at npiregistry.cms.hhs.gov.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-12-28.