Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

LEAH GRACE CALLAHAN
NPI 1609780121
Social Worker - Clinical in Fitchburg, MA

Active since October 01, 2026
49 NURSERY LN STE 201, FITCHBURG, MA 01420(978) 345-7040 Get Directions Write a Review

NPPES record added: October 1, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

About Leah Grace Callahan NPPES

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

LEAH GRACE CALLAHAN (NPI 1609780121) is an individual clinical provider in Fitchburg, Massachusetts and active in the NPI registry since October 2026.

NPPES Registry Identity

NPI1609780121
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameLEAH GRACE CALLAHAN
Location Address49 NURSERY LN STE 201Fitchburg, MA 01420-3576
Mailing Address49 Nursery Ln Ste 201Fitchburg, MA 01420-3576
Sole ProprietorNo
Enumeration DateOctober 1, 2026
NPPES CertifiedOctober 1, 2026
✔ NPI 1609780121 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
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.
49 NURSERY LN STE 201, Fitchburg, MA 01420

Other Providers at the Same Location NPPES 15

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

Counselor
49 NURSERY LN STE 201
FITCHBURG, MA 01420
Social Worker
49 NURSERY LN STE 201
FITCHBURG, MA 01420
Counselor (Mental Health)
49 NURSERY LN STE 201
FITCHBURG, MA 01420
Counselor
49 NURSERY LN STE 201
FITCHBURG, MA 01420
Social Worker (Clinical)
49 NURSERY LN STE 201
FITCHBURG, MA 01420
Counselor (Mental Health)
49 NURSERY LN STE 201
FITCHBURG, MA 01420
Counselor (Mental Health)
49 NURSERY LN STE 201
FITCHBURG, MA 01420
Counselor (Mental Health)
49 NURSERY LN STE 201
FITCHBURG, MA 01420

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 Leah Callahan's NPI number?

The NPI number for Leah Callahan is 1609780121. It was assigned to this individual provider in the NPPES registry on October 1, 2026.

Where is Leah Callahan located?

Leah Callahan practices at 49 Nursery Ln Ste 201, Fitchburg, MA 01420. The listed phone number is (978) 345-7040.

What is Leah 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 Leah Callahan was last updated on October 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.