DR. MARSHA INA CHASKELSON PH.D.
NPI 1639293681
Psychologist in Lexington, MA

Active since March 16, 2007
76 BEDFORD ST, SUITE 26, LEXINGTON, MA 02420(781) 863-5599(781) 863-2488 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Marsha Ina Chaskelson Ph.d. NPPES

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

DR. MARSHA INA CHASKELSON PH.D. (NPI 1639293681) is an individual psychologist in Lexington, Massachusetts, licensed in Massachusetts (4208) and active in the NPI registry since March 2007.

NPPES Registry Identity

NPI1639293681
Entity TypeIndividualFemale
Primary Taxonomy103T00000X
Provider Legal NameDR. MARSHA INA CHASKELSONCredential: PH.D.
Location Address76 BEDFORD ST, SUITE 26Lexington, MA 02420-4646
Mailing Address76 Bedford St, Suite 26Lexington, MA 02420-4646 · (781) 863-5599 · Fax (781) 863-2488
Fax(781) 863-2488
Sole ProprietorYes
Enumeration DateMarch 16, 2007
Last NPPES UpdateSeptember 11, 2025
NPI 1639293681 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
License Licensed in MA · 4208
Definition
A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public.
Also ListedClinical NeuropsychologistTaxonomy 103G00000X · License 4208 (MA)
Also ListedPsychologist · Cognitive & BehavioralTaxonomy 103TB0200X · License 4208 (MA)
Also ListedPsychologist · Clinical Child & AdolescentTaxonomy 103TC2200X · License 4208 (MA)
76 BEDFORD ST, Lexington, MA 02420

Other Identifiers 1

OtherW10294MA · Blue Cross Blue Shield Ma

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)
76 BEDFORD ST, SUITE 22
LEXINGTON, MA 02420
Psychologist
76 BEDFORD ST, SUITE 26
LEXINGTON, MA 02420
Social Worker (Clinical)
76 BEDFORD ST, SUITE 19
LEXINGTON, MA 02420
Social Worker (Clinical)
76 BEDFORD ST, SUITE 26
LEXINGTON, MA 02420
Counselor (Mental Health)
76 BEDFORD ST, SUITE 10
LEXINGTON, MA 02420
Social Worker (Clinical)
76 BEDFORD ST, SUITE 22
LEXINGTON, MA 02420
Psychologist (Clinical)
76 BEDFORD ST, SUITE 10
LEXINGTON, MA 02420
Dentist (General Practice)
76 BEDFORD ST, CUSTANCE PLACE, UNIT 8
LEXINGTON, MA 02420

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 Marsha Chaskelson's NPI number?

The NPI number for Marsha Chaskelson is 1639293681. It was assigned to this individual provider in the NPPES registry on March 16, 2007.

Where is Marsha Chaskelson located?

Marsha Chaskelson practices at 76 Bedford St Suite 26, Lexington, MA 02420. The listed phone number is (781) 863-5599.

What is Marsha Chaskelson's specialty?

The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.

When was this NPI record last updated?

The NPPES record for Marsha Chaskelson was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.