Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary Viola Herrmann, MS MFCC

Marriage & Family Therapist in Oakhurst, CA · enumerated 2007.

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

National Provider Identifier

1487770087

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Mary Viola Herrmann

Credential MS MFCC

Sex Female

Practice address 40459 Highway 41, Ste 7, Oakhurst, CA, 93644

Phone (559) 683-1615

Enumeration date Mar 22, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License MFC23962 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Mary Herrmann practice?

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

What is the NPI number for Mary Herrmann?

The National Provider Identifier (NPI) for Mary Herrmann is 1487770087, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Philip Walker Mental Health Counselor · Oakhurst, CA NPI 1093932956

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