NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Mary Lynne Mack Phd LLC

Clinical Psychologist in Phoenix, AZ · enumerated 2012 · authorized official Mary Mack, Psychologist.

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

National Provider Identifier

1639415078

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Mary Lynne Mack Phd LLC
Practice address 4600 E Washington St Ste 300, Phoenix, AZ, 85034
Phone (480) 737-6076
Enumeration date Dec 12, 2012
Last updated in NPPES Jan 9, 2026

Taxonomy & classification

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 2598-057 (WI) Primary

Authorized official

Name Mary Mack
Title Psychologist
Phone (262) 391-2551

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 Mary Lynne Mack Phd LLC?
The NPI for Mary Lynne Mack Phd LLC is 1639415078, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Mary Lynne Mack Phd LLC?
NPPES lists Mary Mack (Psychologist) as the authorized official for this organization.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-01-09.