NPI Portal NPI Lookup & Verification

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

Ronald Colby Miller, PSY.D.

Clinical Psychologist in Mesa, AZ · enumerated 2006.

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

National Provider Identifier

1326158577

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Registry record

Entity type Individual (Type 1)
Name Ronald Colby Miller
Credential PSY.D.
Sex Male
Practice address Mesa, AZ, 85210
Fax (480) 209-1063
Enumeration date Aug 30, 2006
Last updated in NPPES May 21, 2009

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

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 3676 (AZ) Primary
PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD credential

Other identifiers

Identifier Type State Issuer
374415 Other AZ MHN
910184 Other AZ EVERCARE SELECT
910184 Other AZ MERCY CARE
6100810 Other AZ EVERCARE CHOICE
202622779-85016-A002 Other AZ TRICARE/TRIWEST
7000831 Other AZ AETNA
AZ0623430 Other AZ BLUE CROSS BLUE SHIELD
9402957 Other AZ PHCS

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

Is NPI 1326158577 active?
Yes, as of the latest NPPES snapshot, NPI 1326158577 is active (record last updated 2009-05-21).
How do I verify Ronald Miller's NPI record?
Cross-check NPI 1326158577 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-05-21.