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Keystone Medical Group

Neuromuscular Medicine (Physical Medicine & Rehabilitation) Physician in Riverside, CA · enumerated 2009 · authorized official Gary Weessies, Partner.

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

National Provider Identifier

1235365701

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Registry record

Entity type Organization (Type 2)
Legal business name Keystone Medical Group
Practice address 4843 Arlington Ave, Riverside, CA, 92504
Phone (951) 682-4404
Fax (951) 682-4406
Enumeration date Jun 10, 2009
Last updated in NPPES Jun 10, 2009

Taxonomy & classification

111N00000X Chiropractor Chiropractic Providers · License DC24932 (CA) Secondary
2081N0008X Neuromuscular Medicine (Physical Medicine & Rehabilitation) Physician Allopathic & Osteopathic Physicians · License C41397 (CA) Primary

Authorized official

Name Gary Weessies
Title Partner
Phone (951) 682-4404

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

How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2009-06-10. Verify at npiregistry.cms.hhs.gov.
Where is Keystone Medical Group located?
The practice location on file with NPPES is in Riverside, CA.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-06-10.