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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MR. THOMAS WILLIAM CALLAHAN MSW
NPI 1407845233
Social Worker - Clinical in Phoenix, AZ

Active since October 14, 2005
10220 N 31ST AVE, SUITE 205, PHOENIX, AZ 85051(602) 997-1515(602) 997-1305 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Mr. Thomas William Callahan Msw NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MR. THOMAS WILLIAM CALLAHAN MSW (NPI 1407845233) is an individual clinical provider in Phoenix, Arizona, licensed in Arizona (LCSW0161) and active in the NPI registry since October 2005.

NPPES Registry Identity

NPI1407845233
Entity TypeIndividualMale
Primary Taxonomy1041C0700X
Provider Legal NameMR. THOMAS WILLIAM CALLAHANCredential: MSW
Location Address10220 N 31ST AVE, SUITE 205Phoenix, AZ 85051-9581
Mailing Address10220 N 31st Ave, Suite 205Phoenix, AZ 85051-9581 · (602) 997-1515 · Fax (602) 997-1305
Phone(602) 997-1515
Fax(602) 997-1305
Sole ProprietorNo
Enumeration DateOctober 14, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1407845233 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in AZ · LCSW0161
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
10220 N 31ST AVE, Phoenix, AZ 85051
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Other Providers at the Same Location NPPES 6

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JOHANNA C LIPPERT N.P.
Nurse Practitioner (Psychiatric/Mental Health)
10220 N 31ST AVE
PHOENIX, AZ 85051
Maricopa County (602) 997-2233
ARASH ZAMANIAN M.D.
Psychiatry & Neurology (Child & Adolescent Psychiatry)
10220 N 31ST AVE, SUITE #101
PHOENIX, AZ 85051
Maricopa County (602) 997-2233
MS. PATRICIA L. BRADLEY-BATES LPC, LISAC
Counselor (Addiction (Substance Use Disorder))
10220 N 31ST AVE, SUITE 205
PHOENIX, AZ 85051
Maricopa County (602) 843-0000
METRO INTEGRATED HEALTH
Psychologist (Addiction (Substance Use Disorder))
10220 N 31ST AVE
PHOENIX, AZ 85051
Maricopa County (951) 330-6603
HEIDI H HOWARD LCSW
Social Worker (Clinical)
10220 N 31ST AVE, #205
PHOENIX, AZ 85051
Maricopa County (602) 843-0000
MRS. KIMBERLY DAWN NIELSEN LCSW
Social Worker
10220 N 31ST AVE, #101
PHOENIX, AZ 85051
Maricopa County (602) 997-2233

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Thomas Callahan's NPI number?

The NPI number for Thomas Callahan is 1407845233. It was assigned to this individual provider in the NPPES registry on October 14, 2005.

Where is Thomas Callahan located?

Thomas Callahan practices at 10220 N 31st Ave Suite 205, Phoenix, AZ 85051. The listed phone number is (602) 997-1515.

What is Thomas Callahan's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

When was this NPI record last updated?

The NPPES record for Thomas Callahan was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 38 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.