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

JACK COWAN
NPI 1407764954
Social Worker - Clinical in Boston, MA

Active since August 27, 2026

NPPES record added: August 27, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

About Jack Cowan NPPES

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

JACK COWAN (NPI 1407764954) is an individual clinical provider in Boston, Massachusetts, licensed in Massachusetts (LCSW2120289) and active in the NPI registry since August 2026.

NPPES Registry Identity

NPI1407764954
Entity TypeIndividualMale
Primary Taxonomy1041C0700X
Provider Legal NameJACK COWAN
Location Address55 FRUIT STBoston, MA 02114-2696
Mailing Address55 Fruit StBoston, MA 02114-2696 · (617) 726-2655
Sole ProprietorNo
Enumeration DateAugust 27, 2026
NPPES CertifiedAugust 27, 2026
NPI 1407764954 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 MA · LCSW2120289
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.
55 FRUIT ST, Boston, MA 02114

Other Providers at the Same Location NPPES 20

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

Pathology (Anatomic Pathology)
55 FRUIT ST
BOSTON, MA 02114
Internal Medicine (Hematology & Oncology)
55 FRUIT ST
BOSTON, MA 02114
Anesthesiology
55 FRUIT ST, GRAY-BIGELOW 444
BOSTON, MA 02114
Physical Medicine & Rehabilitation
55 FRUIT ST
BOSTON, MA 02114
Internal Medicine (Infectious Disease)
55 FRUIT ST, DIVISION OF INFECTIOUS DISEASE, GRJ-504
BOSTON, MA 02114
Nurse Practitioner (Acute Care)
55 FRUIT ST, BIGALOW 852 F
BOSTON, MA 02114
Nurse Practitioner
55 FRUIT ST
BOSTON, MA 02114
Internal Medicine (Cardiovascular Disease)
55 FRUIT ST
BOSTON, MA 02114

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 Jack Cowan's NPI number?

The NPI number for Jack Cowan is 1407764954. It was assigned to this individual provider in the NPPES registry on August 27, 2026.

Where is Jack Cowan located?

Jack Cowan practices at 55 Fruit St, Boston, MA 02114. The listed phone number is (617) 726-2655.

What is Jack Cowan'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 Jack Cowan was last updated on August 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.