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

MRS. MARGARET N BRESNIHAN
NPI 1023500857
Counselor in Chelmsford, MA

Q: What is Margaret Bresnihan's NPI number?

The NPI number for Margaret Bresnihan is 1023500857. It was assigned to this individual provider in the NPPES registry on June 6, 2018.

Q: What is Margaret Bresnihan's specialty?

The primary specialty registered for this NPI is Counselor with taxonomy code 101Y00000X.

Active since June 06, 2018

1 OLDE NORTH RD STE 302, CHELMSFORD, MA 01824(617) 214-0932(617) 681-3221 Get Directions Write a Review

NPPES record last updated: September 16, 2026. Verified against the NPPES registry weekly; last sync: September 27, 2026.

Record update history: Sep 16, 2026, Apr 30, 2026, Dec 18, 2025 (3 updates tracked since 2025).

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About Mrs. Margaret N Bresnihan NPPES

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

MRS. MARGARET N BRESNIHAN (NPI 1023500857) is an individual counselor in Chelmsford, Massachusetts, licensed in Massachusetts (LMHC10005563) and active in the NPI registry since June 2018.

NPPES Registry Identity

NPI1023500857

Entity TypeIndividualFemale

Primary Taxonomy101Y00000X

Provider Legal NameMRS. MARGARET N BRESNIHAN

Location Address1 OLDE NORTH RD STE 302Chelmsford, MA 01824-1453

Mailing Address1 Olde North Rd Ste 302Chelmsford, MA 01824-1453 · (617) 214-0932 · Fax (617) 681-3221

Phone(617) 214-0932

Fax(617) 681-3221

Sole ProprietorNo

Enumeration DateJune 6, 2018

Last NPPES UpdateSeptember 16, 20263 updates tracked since enumeration

NPPES CertifiedSeptember 16, 2026

✔ NPI 1023500857 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyCounselorBehavioral Health & Social Service Providers

Taxonomy Code101Y00000X

License✔ Licensed in MA · LMHC10005563

Definition

A provider who is trained and educated in the performance of behavior health services through interpersonal communications and analysis. Training and education at the specialty level usually requires a master's degree and clinical experience and supervision for licensure or certification.

Also ListedCounselor · Mental HealthTaxonomy 101YM0800X · License CC8741 (ME), 5852 (NH)

1 OLDE NORTH RD STE 302, Chelmsford, MA 01824

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Other Providers at the Same Location NPPES

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

FIRESIDE THERAPY AND WELLNESS LLC

Counselor (Mental Health)

1 OLDE NORTH RD STE 302
CHELMSFORD, MA 01824

Middlesex County (617) 214-0932

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 Margaret Bresnihan's NPI number?

The NPI number for Margaret Bresnihan is 1023500857. It was assigned to this individual provider in the NPPES registry on June 6, 2018.

Where is Margaret Bresnihan located?

Margaret Bresnihan practices at 1 Olde North Rd Ste 302, Chelmsford, MA 01824. The listed phone number is (617) 214-0932.

What is Margaret Bresnihan's specialty?

The primary specialty registered for this NPI is Counselor with taxonomy code 101Y00000X.

When was this NPI record last updated?

The NPPES record for Margaret Bresnihan was last updated on September 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.