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

MRS. MARYJO B HAGGERTY LICSW DIPLOMATE
NPI 1649260282
Social Worker - Clinical in Lowell, MA

Active since October 25, 2005
77 E MERRIMACK ST, SUITE 23, LOWELL, MA 01852(978) 452-3711(978) 441-9351 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 13, 2026, Sep 11, 2025 (2 updates tracked since 2025).

About Mrs. Maryjo B Haggerty Licsw Diplomate NPPES

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

MRS. MARYJO B HAGGERTY LICSW DIPLOMATE (NPI 1649260282) is an individual clinical provider in Lowell, Massachusetts, licensed in Massachusetts (SW101178) and active in the NPI registry since October 2005.

NPPES Registry Identity

NPI1649260282
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMRS. MARYJO B HAGGERTYCredential: LICSW DIPLOMATE
Location Address77 E MERRIMACK ST, SUITE 23Lowell, MA 01852-1251
Mailing Address5 Partridge LnLincoln, MA 01773-1803 · (781) 289-8606 · Fax (978) 441-9351
Fax(978) 441-9351
Sole ProprietorNo
Enumeration DateOctober 25, 2005
Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration
NPI 1649260282 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License Licensed in MA · SW101178
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.
Also ListedPsychologistTaxonomy 103T00000X · License SW101178 (MA)
77 E MERRIMACK ST, Lowell, MA 01852

Other Identifiers 2

Other009132MA · Harv Pilgrim
Other240093Mbc

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.

Case Manager/Care Coordinator
77 E MERRIMACK ST
LOWELL, MA 01852
Social Worker
77 E MERRIMACK ST
LOWELL, MA 01852
Counselor
77 E MERRIMACK ST
LOWELL, MA 01852
Counselor
77 E MERRIMACK ST
LOWELL, MA 01852
Behavior Analyst
77 E MERRIMACK ST
LOWELL, MA 01852
Counselor (Mental Health)
77 E MERRIMACK ST
LOWELL, MA 01852
Counselor (Mental Health)
77 E MERRIMACK ST
LOWELL, MA 01852
Student in an Organized Health Care Education/Training Program
77 E MERRIMACK ST
LOWELL, MA 01852

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 Maryjo Haggerty's NPI number?

The NPI number for Maryjo Haggerty is 1649260282. It was assigned to this individual provider in the NPPES registry on October 25, 2005.

Where is Maryjo Haggerty located?

Maryjo Haggerty practices at 77 E Merrimack St Suite 23, Lowell, MA 01852. The listed phone number is (978) 452-3711.

What is Maryjo Haggerty'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 Maryjo Haggerty 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 31 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.