DR. GREGORY S. GREENBERG PH.D.
NPI 1174673768
Psychologist in Bellevue, WA

Active since January 12, 2007Opted out of Medicare · through Jul 1, 2028
1601 114TH AVE SE, SUITE 107, BELLEVUE, WA 98004(425) 637-7700 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: September 27, 2026.

About Dr. Gregory S. Greenberg Ph.d. NPPES

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

DR. GREGORY S. GREENBERG PH.D. (NPI 1174673768) is an individual psychologist in Bellevue, Washington, licensed in Washington (PY00001293) and active in the NPI registry since January 2007. He has opted out of Medicare through July 1, 2028 and remains eligible to order and refer.

NPPES Registry Identity

NPI1174673768
Entity TypeIndividualMale
Primary Taxonomy103T00000X
Provider Legal NameDR. GREGORY S. GREENBERGCredential: PH.D.
Location Address1601 114TH AVE SE, SUITE 107Bellevue, WA 98004-6950
Mailing Address1601 114th Ave Se, Suite 107Bellevue, WA 98004-6950 · (425) 637-7700
Sole ProprietorYes
Enumeration DateJanuary 12, 2007
Last NPPES UpdateJuly 8, 2007
✔ NPI 1174673768 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 WA · PY00001293
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.
1601 114TH AVE SE, Bellevue, WA 98004

Accepted Insurance

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. Gregory S. Greenberg 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 July 1, 2014 through July 1, 2028.

Opt-Out Effective DateJuly 1, 2014
Opt-Out In Effect ThroughJuly 1, 2028Opt-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 18

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

Counselor (Mental Health)
1601 114TH AVE SE, SUITE 108
BELLEVUE, WA 98004
Counselor (Mental Health)
1601 114TH AVE SE
BELLEVUE, WA 98004
Marriage & Family Therapist
1601 114TH AVE SE, SUITE 108
BELLEVUE, WA 98004
Dietitian, Registered
1601 114TH AVE SE, #180
BELLEVUE, WA 98004
Psychologist (Cognitive & Behavioral)
1601 114TH AVE SE, SUITE 107
BELLEVUE, WA 98004
Counselor (Mental Health)
1601 114TH AVE SE, SUITE 169
BELLEVUE, WA 98004
Psychologist
1601 114TH AVE SE, SUITE 107
BELLEVUE, WA 98004
Social Worker (Clinical)
1601 114TH AVE SE, SUITE 108
BELLEVUE, WA 98004

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 Gregory Greenberg's NPI number?

The NPI number for Gregory Greenberg is 1174673768. It was assigned to this individual provider in the NPPES registry on January 12, 2007.

Where is Gregory Greenberg located?

Gregory Greenberg practices at 1601 114th Ave SE Suite 107, Bellevue, WA 98004. The listed phone number is (425) 637-7700.

What is Gregory Greenberg's specialty?

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

Is Gregory Greenberg enrolled in Medicare?

No. Gregory Greenberg has opted out of Medicare through July 1, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

What insurance does Gregory Greenberg accept?

Health plans from PacificSource Health Plans and Premera Blue Cross Blue Shield of Alaska list Gregory Greenberg as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Gregory Greenberg was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.