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WILLIAM CALLAHAN
NPI 1649136193
Counselor - Addiction (Substance Use Disorder) in Plymouth, MA

Active since December 29, 2025
61 INDUSTRIAL PARK RD, PLYMOUTH, MA 02360(508) 689-5576 Get Directions Write a Review

NPPES record last updated: December 29, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About William Callahan NPPES

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

WILLIAM CALLAHAN (NPI 1649136193) is an individual addiction (substance use disorder) provider in Plymouth, Massachusetts and active in the NPI registry since December 2025.

NPPES Registry Identity

NPI1649136193
Entity TypeIndividualMale
Primary Taxonomy101YA0400X
Provider Legal NameWILLIAM CALLAHAN
Location Address61 INDUSTRIAL PARK RDPlymouth, MA 02360-7246
Mailing Address61 Industrial Park RdPlymouth, MA 02360-7246 · (508) 689-5576
Phone(508) 689-5576
Sole ProprietorNo
Enumeration DateDecember 29, 2025
NPPES CertifiedDecember 29, 2025
✔ NPI 1649136193 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers
Taxonomy Code101YA0400X
61 INDUSTRIAL PARK RD, Plymouth, MA 02360
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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.

MS. BARBARA ANN CAPALDO MED
Counselor (Mental Health)
61 INDUSTRIAL PARK RD, SOUTH BAY MENTAL HEALTH CENTER
PLYMOUTH, MA 02360
Plymouth County (508) 830-0000
TIFFANIE FOSTER
Counselor (Addiction (Substance Use Disorder))
61 INDUSTRIAL PARK RD
PLYMOUTH, MA 02360
Plymouth County (774) 628-1000
DEBORAH KETTNER
Counselor (Addiction (Substance Use Disorder))
61 INDUSTRIAL PARK RD
PLYMOUTH, MA 02360
Plymouth County (508) 830-1234
KEVIN M KILLARNEY M. ED.
Counselor (Addiction (Substance Use Disorder))
61 INDUSTRIAL PARK RD
PLYMOUTH, MA 02360
Plymouth County (508) 503-5020
FRANK GONSALVES IV
Counselor (Addiction (Substance Use Disorder))
61 INDUSTRIAL PARK RD
PLYMOUTH, MA 02360
Plymouth County (508) 689-5576
ELINOR LAURA KERNS MSW
Counselor (Mental Health)
61 INDUSTRIAL PARK RD
PLYMOUTH, MA 02360
Plymouth County (877) 996-3154
MRS. ELIZABETH K CONNORS MSW
Counselor (Mental Health)
61 INDUSTRIAL PARK RD
PLYMOUTH, MA 02360
Plymouth County (508) 990-0894
SHANNON MCKENNA
Student in an Organized Health Care Education/Training Program
61 INDUSTRIAL PARK RD
PLYMOUTH, MA 02360
Plymouth County (508) 830-1234

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 Callahan's NPI number?

The NPI number for William Callahan is 1649136193. It was assigned to this individual provider in the NPPES registry on December 29, 2025.

Where is William Callahan located?

William Callahan practices at 61 Industrial Park Rd, Plymouth, MA 02360. The listed phone number is (508) 689-5576.

What is William Callahan's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

When was this NPI record last updated?

The NPPES record for William Callahan was last updated on December 29, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.