DR. MARTHA DEWITT PH.D.
NPI 1144209396
Psychologist in Belmont, MA

Active since January 15, 2006Opted out of Medicare · through Jan 7, 2028
9 ALEXANDER AVE, BELMONT, MA 02478(617) 489-9302 Get Directions Write a Review

NPPES record last updated: August 28, 2008. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Martha Dewitt Ph.d. NPPES

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

DR. MARTHA DEWITT PH.D. (NPI 1144209396) is an individual psychologist in Belmont, Massachusetts, licensed in Massachusetts (6205) and active in the NPI registry since January 2006. She has opted out of Medicare through January 7, 2028.

NPPES Registry Identity

NPI1144209396
Entity TypeIndividualFemale
Primary Taxonomy103T00000X
Provider Legal NameDR. MARTHA DEWITTCredential: PH.D.
Location Address9 ALEXANDER AVEBelmont, MA 02478-4802
Mailing Address9 Alexander AveBelmont, MA 02478-4802 · (617) 489-9302
Sole ProprietorYes
Enumeration DateJanuary 15, 2006
Last NPPES UpdateAugust 28, 2008
NPI 1144209396 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
License Licensed in MA · 6205
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.
9 ALEXANDER AVE, Belmont, MA 02478

Other Identifiers 2

Medicare PINW04957
OtherW04957MA · Blue Cross Blue Shield

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Opted out of Medicare

Dr. Martha Dewitt Ph.d. has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from January 7, 2020 through January 7, 2028.

Opt-Out Effective DateJanuary 7, 2020
Opt-Out In Effect ThroughJanuary 7, 2028Opt-out affidavits renew automatically every two years unless cancelled

Other Providers at the Same Location NPPES 4

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

Clinical Nurse Specialist (Psychiatric/Mental Health)
9 ALEXANDER AVE
BELMONT, MA 02478
Social Worker (Clinical)
9 ALEXANDER AVE
BELMONT, MA 02478
Nurse Practitioner (Psychiatric/Mental Health)
9 ALEXANDER AVE
BELMONT, MA 02478
Psychiatry & Neurology (Psychiatry)
9 ALEXANDER AVE
BELMONT, MA 02478

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 Martha Dewitt's NPI number?

The NPI number for Martha Dewitt is 1144209396. It was assigned to this individual provider in the NPPES registry on January 15, 2006.

Where is Martha Dewitt located?

Martha Dewitt practices at 9 Alexander Ave, Belmont, MA 02478. The listed phone number is (617) 489-9302.

What is Martha Dewitt's specialty?

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

Is Martha Dewitt enrolled in Medicare?

No. Martha Dewitt has opted out of Medicare through January 7, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.

When was this NPI record last updated?

The NPPES record for Martha Dewitt was last updated on August 28, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.