Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Allison Muller, B.A., M.S.

Mental Health Counselor in Atascadero, CA · enumerated 2014.

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

National Provider Identifier

1134548498

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Registry record

Entity type Individual (Type 1)

Name Allison Muller

Credential B.A., M.S.

Sex Female

Practice address 8000 Santa Rosa Road, Atascadero, CA, 93422

Phone (805) 781-3535

Fax (805) 503-6499

Enumeration date Apr 15, 2014

Last updated in NPPES Nov 25, 2014

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Allison Muller?

The National Provider Identifier (NPI) for Allison Muller is 1134548498, a Type 1 (individual) record in the CMS NPPES registry.

Where does Allison Muller practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-11-25.