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WILLIAM J. HARRIGAN
NPI 1659252732
Counselor - Mental Health in Waltham, MA

Active since September 08, 2025
675 MAIN ST, WALTHAM, MA 02451(508) 416-7872 Get Directions Write a Review

NPPES record last updated: September 8, 2025. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About William J. Harrigan NPPES

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

WILLIAM J. HARRIGAN (NPI 1659252732) is an individual mental health provider in Waltham, Massachusetts and active in the NPI registry since September 2025.

NPPES Registry Identity

NPI1659252732
Entity TypeIndividualMale
Primary Taxonomy101YM0800X
Provider Legal NameWILLIAM J. HARRIGAN
Location Address675 MAIN STWaltham, MA 02451-0602
Mailing Address10 Butler AveMaynard, MA 01754-1404 · (508) 416-7872 · Fax (508) 628-7329
Phone(508) 416-7872
Sole ProprietorNo
Enumeration DateSeptember 8, 2025
NPPES CertifiedSeptember 8, 2025
✔ NPI 1659252732 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
675 MAIN ST, Waltham, MA 02451
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Other Names 1

Other Name (5)Baz Harrigan

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.

LYNDIE LARAMORE LMHC
Counselor
675 MAIN ST
WALTHAM, MA 02451
Middlesex County (774) 405-5730
FLAVIA DE CASTRO FARIAS LOPES
Case Manager/Care Coordinator
675 MAIN ST
WALTHAM, MA 02451
Middlesex County (774) 405-1067
DAHLIA GORDON
Counselor (Mental Health)
675 MAIN ST
WALTHAM, MA 02451
Middlesex County (781) 893-5110
NICOLE PROVENCHER LMHC
Counselor (Mental Health)
675 MAIN ST
WALTHAM, MA 02451
Middlesex County (781) 893-5110
EMILY EMILIA ERHARD
Counselor (Mental Health)
675 MAIN ST
WALTHAM, MA 02451
Middlesex County (781) 893-5110
JASON PUGATCH LICSW
Social Worker (Clinical)
675 MAIN ST
WALTHAM, MA 02451
Middlesex County (800) 640-5432
MISS CAITLIN M MCDONNELL
Counselor (Mental Health)
675 MAIN ST
WALTHAM, MA 02451
Middlesex County (781) 893-2003
MRS. ELINOR LAWRENCE VERENBEC M.S.
Counselor (Mental Health)
675 MAIN ST
WALTHAM, MA 02451
Middlesex County (781) 893-2003

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 William Harrigan's NPI number?

The NPI number for William Harrigan is 1659252732. It was assigned to this individual provider in the NPPES registry on September 8, 2025. The provider is also known as Baz Harrigan.

Where is William Harrigan located?

William Harrigan practices at 675 Main St, Waltham, MA 02451. The listed phone number is (508) 416-7872.

What is William Harrigan's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

When was this NPI record last updated?

The NPPES record for William Harrigan was last updated on September 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.