Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Matthew Thomas Riffel, MHRS BA

Psychiatric/Mental Health Registered Nurse in Santa Rosa, CA · enumerated 2007.

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

National Provider Identifier

1316082837

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Registry record

Entity type Individual (Type 1)

Name Mr. Matthew Thomas Riffel

Credential MHRS BA

Sex Male

Practice address 2350 Professional Dr, County of Sonoma, Fact, Santa Rosa, CA, 95403

Phone (707) 565-4951

Fax (707) 565-3409

Enumeration date Feb 21, 2007

Last updated in NPPES Jul 26, 2013

Taxonomy & licenses

163WP0808X Psychiatric/Mental Health Registered Nurse Nursing Service Providers · License 799882 (CA) Primary

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 Matthew Riffel practice?

The practice location on file with NPPES is in Santa Rosa, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Matthew Riffel?

The National Provider Identifier (NPI) for Matthew Riffel is 1316082837, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-07-26.