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

Peter Mayfield

Mental Health Counselor in Truckee, CA · enumerated 2017.

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

National Provider Identifier

1538695135

Verified

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Registry record

Entity type Individual (Type 1)

Name Peter Mayfield

Sex Male

Practice address Truckee, CA, 96161

Phone (530) 426-2110

Enumeration date May 3, 2017

Last updated in NPPES May 3, 2017

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

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers 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 Peter Mayfield practice?

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

What is the NPI number for Peter Mayfield?

The National Provider Identifier (NPI) for Peter Mayfield is 1538695135, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Gregory Bernstein Counselor · Truckee, CA NPI 1053768929

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-05-03.