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

DR. ELIZABETH H. EUSTIS PH.D.
NPI 1831794874
Psychologist - Clinical in Arlington, MA

Q: What is Elizabeth Eustis's NPI number?

The NPI number for Elizabeth Eustis is 1831794874. It was assigned to this individual provider in the NPPES registry on November 30, 2020.

Q: What is Elizabeth Eustis's specialty?

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

Q: Is Elizabeth Eustis enrolled in Medicare?

No. Elizabeth Eustis has opted out of Medicare through January 2, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.

Q: When was this NPI record last updated?

The NPPES record for Elizabeth Eustis was last updated on June 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 57 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.

Active since November 30, 2020Opted out of Medicare · through Jan 2, 2028

226 MASSACHUSETTS AVE STE 2A, ARLINGTON, MA 02474(617) 977-4770 Get Directions Write a Review

NPPES record last updated: June 19, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Dr. Elizabeth H. Eustis Ph.d. NPPES

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

DR. ELIZABETH H. EUSTIS PH.D. (NPI 1831794874) is an individual clinical provider in Arlington, Massachusetts, licensed in Massachusetts (11394) and active in the NPI registry since November 2020. She has opted out of Medicare through January 2, 2028.

NPPES Registry Identity

NPI1831794874

Entity TypeIndividualFemale

Primary Taxonomy103TC0700X

Provider Legal NameDR. ELIZABETH H. EUSTISCredential: PH.D.

Location Address226 MASSACHUSETTS AVE STE 2AArlington, MA 02474-8449

Mailing Address226 Massachusetts Ave Ste 2aArlington, MA 02474-8449 · (617) 977-4770

Phone(617) 977-4770

Sole ProprietorNo

Enumeration DateNovember 30, 2020

Last NPPES UpdateJune 19, 2026

NPPES CertifiedJune 19, 2026

✔ NPI 1831794874 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code103TC0700X

License✔ Licensed in MA · 11394

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.

226 MASSACHUSETTS AVE STE 2A, Arlington, MA 02474

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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. Elizabeth H. Eustis 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 2, 2024 through January 2, 2028.

Opt-Out Effective DateJanuary 2, 2024

Opt-Out In Effect ThroughJanuary 2, 2028Opt-out affidavits renew automatically every two years unless cancelled

Other Providers at the Same Location NPPES 9

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

DR. JASMINE MOTE PHD

Psychologist