DR. WILLIAM MALLON III
NPI 1558737916
Psychologist - Clinical in Roslindale, MA

Active since August 19, 2015
780 AMERICAN LEGION HWY, ROSLINDALE, MA 02131(617) 529-9281 Get Directions Write a Review

NPPES record last updated: July 13, 2022. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. William Mallon Iii NPPES

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

DR. WILLIAM MALLON III (NPI 1558737916) is an individual clinical provider in Roslindale, Massachusetts, licensed in New York (023543) and active in the NPI registry since August 2015.

NPPES Registry Identity

NPI1558737916
Entity TypeIndividualMale
Primary Taxonomy103TC0700X
Provider Legal NameDR. WILLIAM MALLON III
Location Address780 AMERICAN LEGION HWYRoslindale, MA 02131-3908
Mailing Address718 Smyth RdManchester, NH 03104-7007 · (617) 529-9281
Sole ProprietorNo
Enumeration DateAugust 19, 2015
Last NPPES UpdateJuly 13, 2022
NPPES CertifiedJuly 13, 2022
NPI 1558737916 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
License Licensed in NY · 023543
Definition
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.
Also ListedCounselor · Mental HealthTaxonomy 101YM0800X
780 AMERICAN LEGION HWY, Roslindale, MA 02131

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.

Social Worker (Clinical)
780 AMERICAN LEGION HWY, PRESCHOOL OUTREACH PROGRAM
BOSTON, MA 02131
Social Worker (Clinical)
780 AMERICAN LEGION HWY
ROSLINDALE, MA 02131
Social Worker (Clinical)
780 AMERICAN LEGION HWY, THE HOME FOR LITTLE WANDERERS
ROSLINDALE, MA 02131
Student in an Organized Health Care Education/Training Program
780 AMERICAN LEGION HWY
BOSTON, MA 02131
Social Worker (Clinical)
780 AMERICAN LEGION HWY
ROSLINDALE, MA 02131
Nurse Practitioner (Psychiatric/Mental Health)
780 AMERICAN LEGION HWY
ROSLINDALE, MA 02131
Counselor
780 AMERICAN LEGION HWY
ROSLINDALE, MA 02131
Social Worker (Clinical)
780 AMERICAN LEGION HWY
ROSLINDALE, MA 02131

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 Mallon's NPI number?

The NPI number for William Mallon is 1558737916. It was assigned to this individual provider in the NPPES registry on August 19, 2015.

Where is William Mallon located?

William Mallon practices at 780 American Legion Hwy, Roslindale, MA 02131. The listed phone number is (617) 529-9281.

What is William Mallon's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

When was this NPI record last updated?

The NPPES record for William Mallon was last updated on July 13, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.