Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Katherine A. Muir, Ph.D.

Q: What is the NPI number for Katherine A. Muir, Ph.D.?

The NPI for Katherine A. Muir, Ph.D. is 1649418765, a Type 2 (organization) record in the CMS NPPES registry.

Clinical Psychologist in Orlando, FL · enumerated 2009 · authorized official Katherine Muir, Psychologist/Owner/Manager.

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

National Provider Identifier

1649418765

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Registry record

Entity type Organization (Type 2)

Legal business name Katherine A. Muir, Ph.D.

Practice address 730 Courtland St, Orlando, FL, 32804

Phone (321) 262-1193

Enumeration date Jan 27, 2009

Last updated in NPPES Mar 26, 2009

Taxonomy & classification

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PY 6054 (FL) Primary

Authorized official

Name Katherine Muir

Title Psychologist/Owner/Manager

Phone (321) 262-1193

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

Who is the authorized official for Katherine A. Muir, Ph.D.?

NPPES lists Katherine Muir (Psychologist/Owner/Manager) as the authorized official for this organization.

What is the NPI number for Katherine A. Muir, Ph.D.?

The NPI for Katherine A. Muir, Ph.D. is 1649418765, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-03-26.