Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

MR. MARC L WALKER, JR. JR.
NPI 1851082184
Behavior Technician in Dorchester, MA

Active since May 17, 2023
4 GLENWAY STREET, APT 3 UNIT 5, DORCHESTER, MA 02121(202) 904-4424 Get Directions Write a Review

NPPES record last updated: July 12, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 12, 2026, May 23, 2023, May 17, 2023 (3 updates tracked since 2023).

About Mr. Marc L Walker, Jr. Jr. NPPES

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

MR. MARC L WALKER, JR. JR. (NPI 1851082184) is an individual behavior technician in Dorchester, Massachusetts and active in the NPI registry since May 2023.

NPPES Registry Identity

NPI1851082184
Entity TypeIndividualMale
Primary Taxonomy106S00000X
Provider Legal NameMR. MARC L WALKER, JR. JR.
Location Address4 GLENWAY STREET, APT 3 UNIT 5Dorchester, MA 02121-0212
Mailing Address1295 Beacon St Brookline, #655Dorchester, MA 02446 · (202) 904-4424
Sole ProprietorYes
Enumeration DateMay 17, 2023
Last NPPES UpdateJuly 12, 20263 updates tracked since enumeration
NPPES CertifiedMay 23, 2023
NPI 1851082184 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyBehavior TechnicianBehavioral Health & Social Service Providers
Taxonomy Code106S00000X
Definition

The behavior technician is a paraprofessional who practices under the close, ongoing supervision of a behavior analyst or assistant behavior analyst certified by the Behavior Analyst Certification Board and/or credentialed by a state (such as through licensure). The behavior technician is primarily responsible for the implementation of components of behavior-analytic treatment plans developed by the supervisor. That may include collecting data on treatment targets and conducting certain types of behavioral assessments (e.g., stimulus preference assessments). The behavior technician does not design treatment or assessment plans or procedures but provides services as assigned by the supervisor responsible for his or her work.

Also ListedCase Manager/Care CoordinatorTaxonomy 171M00000X
4 GLENWAY STREET, Dorchester, MA 02121

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 Marc Walker, Jr.'s NPI number?

The NPI number for Marc Walker, Jr. is 1851082184. It was assigned to this individual provider in the NPPES registry on May 17, 2023.

Where is Marc Walker, Jr. located?

Marc Walker, Jr. practices at 4 Glenway Street Apt 3 Unit 5, Dorchester, MA 02121. The listed phone number is (202) 904-4424.

What is Marc Walker, Jr.'s specialty?

The primary specialty registered for this NPI is Behavior Technician with taxonomy code 106S00000X.

When was this NPI record last updated?

The NPPES record for Marc Walker, Jr. was last updated on July 12, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.