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

MADISON DETWILER
NPI 1326670936
Counselor - Mental Health in Brookline, MA

Active since February 11, 2020
1180 BEACON ST STE 4C, BROOKLINE, MA 02446(617) 294-9803 Get Directions Write a Review

NPPES record last updated: September 11, 2026. Verified against the NPPES registry weekly; last sync: September 13, 2026.

Record update history: Sep 11, 2026, Feb 11, 2020 (2 updates tracked since 2020).

About Madison Detwiler NPPES

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

MADISON DETWILER (NPI 1326670936) is an individual mental health provider in Brookline, Massachusetts, licensed in Massachusetts (10001975) and active in the NPI registry since February 2020.

NPPES Registry Identity

NPI1326670936
Entity TypeIndividualFemale
Primary Taxonomy101YM0800X
Provider Legal NameMADISON DETWILER
Location Address1180 BEACON ST STE 4CBrookline, MA 02446-3806
Mailing Address1180 Beacon St Ste 4cBrookline, MA 02446-3806
Phone(617) 294-9803
Sole ProprietorNo
Enumeration DateFebruary 11, 2020
Last NPPES UpdateSeptember 11, 20262 updates tracked since enumeration
NPPES CertifiedSeptember 11, 2026
✔ NPI 1326670936 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
License✔ Licensed in MA · 10001975
Also ListedBehavior TechnicianTaxonomy 106S00000X · License 19-106453 (AR)
1180 BEACON ST STE 4C, Brookline, MA 02446
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care.Insurance ›

Other Providers at the Same Location NPPES 7

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

MR. JOHN MAYO
Counselor (Mental Health)
1180 BEACON ST STE 4C
BROOKLINE, MA 02446
Norfolk County (617) 299-6929
TANNER LEE GLEN LICSW
Social Worker (Clinical)
1180 BEACON ST STE 4C
BROOKLINE, MA 02446
Norfolk County (413) 273-6474
KARINA GRUESZ LICSW
Social Worker (Clinical)
1180 BEACON ST STE 4C
BROOKLINE, MA 02446
Norfolk County (617) 294-9803
MICHAEL D SCHREIBER NP PC
Clinic/Center (Adult Mental Health)
1180 BEACON ST STE 4C
BROOKLINE, MA 02446
Norfolk County (617) 730-8048
SARAH C GARRITY
Social Worker
1180 BEACON ST STE 4C
BROOKLINE, MA 02446
Norfolk County (508) 404-6018
RACHEL FRANCES COAKLEY
Social Worker (Clinical)
1180 BEACON ST STE 4C
BROOKLINE, MA 02446
Norfolk County (551) 587-8438
WILLIAM DEMPSEY LICSW
Social Worker (Clinical)
1180 BEACON ST STE 4C
BROOKLINE, MA 02446
Norfolk County (617) 237-6664

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 Madison Detwiler's NPI number?

The NPI number for Madison Detwiler is 1326670936. It was assigned to this individual provider in the NPPES registry on February 11, 2020.

Where is Madison Detwiler located?

Madison Detwiler practices at 1180 Beacon St Ste 4C, Brookline, MA 02446. The listed phone number is (617) 294-9803.

What is Madison Detwiler's specialty?

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

What insurance does Madison Detwiler accept?

Health plans from Anthem Blue Cross and Blue Shield and Harvard Pilgrim Health Care list Madison Detwiler as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Madison Detwiler was last updated on September 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.