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

Dr. Jeffrey Dean Ries, D.O.

Specialist in Upland, CA · enumerated 2006.

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

National Provider Identifier

1780647735

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Registry record

Entity type Individual (Type 1)
Name Dr. Jeffrey Dean Ries
Credential D.O.
Sex Male
Practice address Upland, CA, 91786
Phone (909) 579-0779
Fax (909) 579-0789
Enumeration date Apr 10, 2006
Last updated in NPPES Jul 27, 2012

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

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 20A5138 (CA) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
00AX51380 Medicaid CA -

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

Where does Jeffrey Ries practice?
The practice location on file with NPPES is in Upland, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Jeffrey Ries?
The National Provider Identifier (NPI) for Jeffrey Ries is 1780647735, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-07-27.