DR. BARBARA ZELDA MAZER PH.D.
NPI 1104134436
Psychologist in Mc Lean, VA

Active since September 21, 2010Opted out of Medicare · through Oct 23, 2027
6862 ELM ST, SUITE 230, MC LEAN, VA 22101(301) 233-8179(301) 770-6768 Get Directions Write a Review

NPPES record last updated: September 21, 2010. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. Barbara Zelda Mazer Ph.d. NPPES

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

DR. BARBARA ZELDA MAZER PH.D. (NPI 1104134436) is an individual psychologist in Mc Lean, Virginia, licensed in Virginia (0810004273) and active in the NPI registry since September 2010. She has opted out of Medicare through October 23, 2027 and remains eligible to order and refer.

NPPES Registry Identity

NPI1104134436
Entity TypeIndividualFemale
Primary Taxonomy103T00000X
Provider Legal NameDR. BARBARA ZELDA MAZERCredential: PH.D.
Location Address6862 ELM ST, SUITE 230Mc Lean, VA 22101-3897
Mailing Address6862 Elm St, Suite 230Mc Lean, VA 22101-3897 · (301) 233-8179 · Fax (301) 770-6768
Fax(301) 770-6768
Sole ProprietorYes
Enumeration DateSeptember 21, 2010
NPI 1104134436 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 VA · 0810004273
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.

6862 ELM ST, Mc Lean, VA 22101

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. Barbara Zelda Mazer 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 October 23, 2019 through October 23, 2027.

Opt-Out Effective DateOctober 23, 2019
Opt-Out In Effect ThroughOctober 23, 2027Opt-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 20

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

Physical Therapist
6862 ELM ST
MC LEAN, VA 22101
Clinic/Center (Primary Care)
6862 ELM ST, SUITE 720
MC LEAN, VA 22101
Psychiatry & Neurology (Child & Adolescent Psychiatry)
6862 ELM ST, SUITE 230
MC LEAN, VA 22101
Internal Medicine
6862 ELM ST, SUITE 700
MC LEAN, VA 22101
Psychiatry & Neurology (Psychiatry)
6862 ELM ST
MC LEAN, VA 22101
Family Medicine
6862 ELM ST, SUITE 720
MC LEAN, VA 22101
Audiologist-Hearing Aid Fitter
6862 ELM ST, SUITE 120
MC LEAN, VA 22101
Audiologist-Hearing Aid Fitter
6862 ELM ST, SUITE 120
MCLEAN, VA 22101

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 Barbara Mazer's NPI number?

The NPI number for Barbara Mazer is 1104134436. It was assigned to this individual provider in the NPPES registry on September 21, 2010.

Where is Barbara Mazer located?

Barbara Mazer practices at 6862 Elm St Suite 230, Mc Lean, VA 22101. The listed phone number is (301) 233-8179.

What is Barbara Mazer's specialty?

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

Is Barbara Mazer enrolled in Medicare?

No. Barbara Mazer has opted out of Medicare through October 23, 2027. 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.

When was this NPI record last updated?

The NPPES record for Barbara Mazer was last updated on September 21, 2010. NPI Profile syncs with the weekly NPPES data releases published by CMS.