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Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

DANIEL LONG
NPI 1225945058
Counselor - Addiction (Substance Use Disorder) in Mattapan, MA

Active since August 26, 2026
201 RIVER ST, MATTAPAN, MA 02126(617) 308-2225 Get Directions Write a Review

NPPES record added: August 26, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

About Daniel Long NPPES

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

DANIEL LONG (NPI 1225945058) is an individual addiction (substance use disorder) provider in Mattapan, Massachusetts and active in the NPI registry since August 2026.

NPPES Registry Identity

NPI1225945058
Entity TypeIndividualMale
Primary Taxonomy101YA0400X
Provider Legal NameDANIEL LONG
Location Address201 RIVER STMattapan, MA 02126-2713
Mailing Address201 River StMattapan, MA 02126-2713 · (617) 308-2225
Phone(617) 308-2225
Sole ProprietorYes
Enumeration DateAugust 26, 2026
NPPES CertifiedAugust 26, 2026
✔ NPI 1225945058 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
201 RIVER ST, Mattapan, MA 02126
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Other Providers at the Same Location NPPES 19

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

MR. PHILLIPE WAYNE COPELAND LICSW
Social Worker (Clinical)
201 RIVER ST
MATTAPAN, MA 02126
Suffolk County (617) 534-9172
ANITA VIOLA NICHOLS-HABIB
Counselor (Mental Health)
201 RIVER ST
MATTAPAN, MA 02126
Suffolk County (781) 322-1503
CYNTHIA P MALETTE
Clinic/Center (Rehabilitation, Substance Use Disorder)
201 RIVER ST
MATTAPAN, MA 02126
Suffolk County (617) 534-9169
PAMELA J DESILVA
Counselor (Addiction (Substance Use Disorder))
201 RIVER ST
MATTAPAN, MA 02126
Suffolk County (617) 534-9109
KASSANDRA ROUND
Social Worker (Clinical)
201 RIVER ST
MATTAPAN, MA 02126
Suffolk County (617) 534-9150
CHRISTOPHER R HUTCHISON-JONES LICSW
Social Worker (Clinical)
201 RIVER ST
MATTAPAN, MA 02126
Suffolk County (617) 534-9112
TORLEAH A WASHINGTON
Counselor (Addiction (Substance Use Disorder))
201 RIVER ST
MATTAPAN, MA 02126
Suffolk County (617) 534-7126
OLAJUMOKE ODO LCSW
Social Worker (Clinical)
201 RIVER ST
BOSTON, MA 02126
Suffolk County (617) 534-9112

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 Daniel Long's NPI number?

The NPI number for Daniel Long is 1225945058. It was assigned to this individual provider in the NPPES registry on August 26, 2026.

Where is Daniel Long located?

Daniel Long practices at 201 River St, Mattapan, MA 02126. The listed phone number is (617) 308-2225.

What is Daniel Long'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 Daniel Long was last updated on August 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.