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MACKENZIE CALLAHAN
NPI 1366288698
Psychologist - Clinical in Chelsea, MI

Active since July 05, 2024
350 N MAIN ST STE 220, CHELSEA, MI 48118(734) 433-5100 Get Directions Write a Review

NPPES record last updated: September 5, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Sep 5, 2025, Jul 6, 2024 (2 updates tracked since 2024).

About Mackenzie Callahan NPPES

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

MACKENZIE CALLAHAN (NPI 1366288698) is an individual clinical provider in Chelsea, Michigan, licensed in Michigan (6301019746) and active in the NPI registry since July 2024.

NPPES Registry Identity

NPI1366288698
Entity TypeIndividualFemale
Primary Taxonomy103TC0700X
Provider Legal NameMACKENZIE CALLAHAN
Location Address350 N MAIN ST STE 220Chelsea, MI 48118-1635
Mailing Address13098 Speckledwood DrDewitt, MI 48820-8191
Phone(734) 433-5100
Sole ProprietorYes
Enumeration DateJuly 5, 2024
Last NPPES UpdateSeptember 5, 20252 updates tracked since enumeration
NPPES CertifiedSeptember 5, 2025
✔ NPI 1366288698 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
License✔ Licensed in MI · 6301019746
Definition
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.
350 N MAIN ST STE 220, Chelsea, MI 48118
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Other Providers at the Same Location NPPES 7

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

MACKENZIE ROSE EGGERS
Social Worker (Clinical)
350 N MAIN ST STE 220
CHELSEA, MI 48118
Washtenaw County (517) 884-1882
MS. ASHLEY MARIE ROEKLE LLMSW
Social Worker
350 N MAIN ST STE 220
CHELSEA, MI 48118
Washtenaw County (734) 433-5100
SHANNON M KOCH MS
Psychologist
350 N MAIN ST STE 220
CHELSEA, MI 48118
Washtenaw County (734) 433-5100
DR. REBECCA NICOLE THOMSON PHD
Psychologist (Clinical Child & Adolescent)
350 N MAIN ST STE 220
CHELSEA, MI 48118
Washtenaw County (734) 433-5100
JULIA VILLARREAL
Psychologist (Clinical Child & Adolescent)
350 N MAIN ST STE 220
CHELSEA, MI 48118
Washtenaw County (734) 433-5100
FAITH MARIE LILLEMOEN TLLP
Psychologist (Clinical)
350 N MAIN ST STE 220
CHELSEA, MI 48118
Washtenaw County (734) 433-5100
JONECE LAYNE
Counselor
350 N MAIN ST STE 220
CHELSEA, MI 48118
Washtenaw County (734) 433-5100

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 Mackenzie Callahan's NPI number?

The NPI number for Mackenzie Callahan is 1366288698. It was assigned to this individual provider in the NPPES registry on July 5, 2024.

Where is Mackenzie Callahan located?

Mackenzie Callahan practices at 350 N Main St Ste 220, Chelsea, MI 48118. The listed phone number is (734) 433-5100.

What is Mackenzie Callahan's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

When was this NPI record last updated?

The NPPES record for Mackenzie Callahan was last updated on September 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months 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.