Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John Charles Riach, D.M.D.

General Practice Dentistry in Rancho Cordova, CA · enumerated 2006.

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

National Provider Identifier

1881789295

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Registry record

Entity type Individual (Type 1)

Name Dr. John Charles Riach

Credential D.M.D.

Sex Male

Practice address 10350 Coloma Road, Rancho Cordova, CA, 95670

Phone (916) 362-9247

Fax (916) 362-0153

Enumeration date Oct 3, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 29432 (CA) Primary

DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1881789295 active?

Yes, as of the latest NPPES snapshot, NPI 1881789295 is active (record last updated 2007-07-08).

How do I verify John Riach's NPI record?

Cross-check NPI 1881789295 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.