DR. MARIANNA LEAVY-SPEROUNIS PSY.D.
NPI 1083146179
Psychologist in Cambridge, MA

Active since March 29, 2017Opted out of Medicare · through Sep 26, 2026
12 ARROW ST STE 210, CAMBRIDGE, MA 02138(617) 682-0646 Get Directions Write a Review

NPPES record last updated: July 27, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 27, 2021, Mar 29, 2017 (2 updates tracked since 2017).

About Dr. Marianna Leavy-sperounis Psy.d. NPPES

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

DR. MARIANNA LEAVY-SPEROUNIS PSY.D. (NPI 1083146179) is an individual psychologist in Cambridge, Massachusetts, licensed in Massachusetts (11413) and active in the NPI registry since March 2017. She has opted out of Medicare through September 26, 2026.

NPPES Registry Identity

NPI1083146179
Entity TypeIndividualFemale
Primary Taxonomy103T00000X
Provider Legal NameDR. MARIANNA LEAVY-SPEROUNISCredential: PSY.D.
Location Address12 ARROW ST STE 210Cambridge, MA 02138-5105
Mailing Address7 Camden PlCambridge, MA 02138-4705 · (617) 682-0646
Sole ProprietorYes
Enumeration DateMarch 29, 2017
Last NPPES UpdateJuly 27, 20212 updates tracked since enumeration
NPPES CertifiedJuly 27, 2021
NPI 1083146179 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 · 11413
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.
12 ARROW ST STE 210, Cambridge, MA 02138

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. Marianna Leavy-sperounis Psy.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 September 26, 2022 through September 26, 2026.

Opt-Out Effective DateSeptember 26, 2022
Opt-Out In Effect ThroughSeptember 26, 2026Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Other Providers at the Same Location NPPES 3

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

Psychologist (Clinical)
12 ARROW ST STE 210
CAMBRIDGE, MA 02138
Psychologist (Clinical)
12 ARROW ST STE 210
CAMBRIDGE, MA 02138
Psychiatry & Neurology (Psychiatry)
12 ARROW ST STE 210
CAMBRIDGE, MA 02138

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 Marianna Leavy-sperounis's NPI number?

The NPI number for Marianna Leavy-sperounis is 1083146179. It was assigned to this individual provider in the NPPES registry on March 29, 2017.

Where is Marianna Leavy-sperounis located?

Marianna Leavy-sperounis practices at 12 Arrow St Ste 210, Cambridge, MA 02138. The listed phone number is (617) 682-0646.

What is Marianna Leavy-sperounis's specialty?

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

Is Marianna Leavy-sperounis enrolled in Medicare?

No. Marianna Leavy-sperounis has opted out of Medicare through September 26, 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 Marianna Leavy-sperounis was last updated on July 27, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.