Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

AILEEN PETERS MA
NPI 1396226163
Psychologist in Arlington, MA

Active since August 28, 2018Opted out of Medicare · through Oct 24, 2026
645R MASS AVE, ARLINGTON, MA 02476(617) 977-4741 Get Directions Write a Review

NPPES record last updated: June 27, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Aileen Peters Ma NPPES

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

AILEEN PETERS MA (NPI 1396226163) is an individual psychologist in Arlington, Massachusetts, licensed in Massachusetts (PSY5000387) and active in the NPI registry since August 2018. She has opted out of Medicare through October 24, 2026.

NPPES Registry Identity

NPI1396226163
Entity TypeIndividualFemale
Primary Taxonomy103T00000X
Provider Legal NameAILEEN PETERSCredential: MA
Location Address645R MASS AVEArlington, MA 02476-5004
Mailing Address6 Stone Post RdAndover, MA 01810-2237 · (978) 852-7197
Sole ProprietorNo
Enumeration DateAugust 28, 2018
Last NPPES UpdateJune 27, 2026
NPPES CertifiedJune 27, 2026
NPI 1396226163 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 · PSY5000387
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.
645R MASS AVE, Arlington, MA 02476

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Opted out of Medicare

Aileen Peters Ma 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 October 24, 2024 through October 24, 2026.

Opt-Out Effective DateOctober 24, 2024
Opt-Out In Effect ThroughOctober 24, 2026Opt-out affidavits renew automatically every two years unless cancelled

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Psychiatric diagnostic evaluation 90791
A psychiatric diagnostic evaluation is a thorough assessment used to identify any mental health conditions you may have. It involves a detailed discussion about your symptoms, thoughts, feelings and behavior patterns. Your medical history and family's mental health history are also considered.
13 services13 patients

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 Aileen Peters's NPI number?

The NPI number for Aileen Peters is 1396226163. It was assigned to this individual provider in the NPPES registry on August 28, 2018.

Where is Aileen Peters located?

Aileen Peters practices at 645R Mass Ave, Arlington, MA 02476. The listed phone number is (617) 977-4741.

What is Aileen Peters's specialty?

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

Is Aileen Peters enrolled in Medicare?

No. Aileen Peters has opted out of Medicare through October 24, 2026. 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 Aileen Peters was last updated on June 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 54 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.