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DR. ARIELLA KAREN GELB MARCUS PSY.D.
NPI 1295284958
Clinical Neuropsychologist in Arlington, VA

Active since September 22, 2016Opted out of Medicare · through Jan 1, 2028
2200 WILSON BLVD, SUITE 401, ARLINGTON, VA 22201(703) 875-0475 Get Directions Write a Review

NPPES record last updated: March 2, 2017. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Mar 2, 2017, Sep 22, 2016 (2 updates tracked since 2016).

About Dr. Ariella Karen Gelb Marcus Psy.d. NPPES

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

DR. ARIELLA KAREN GELB MARCUS PSY.D. (NPI 1295284958) is an individual clinical neuropsychologist in Arlington, Virginia, licensed in Virginia (0810005344) and active in the NPI registry since September 2016. She has opted out of Medicare through January 1, 2028 and remains eligible to order and refer.

NPPES Registry Identity

NPI1295284958
Entity TypeIndividualFemale
Primary Taxonomy103G00000X
Provider Legal NameDR. ARIELLA KAREN GELB MARCUSCredential: PSY.D.
Location Address2200 WILSON BLVD, SUITE 401Arlington, VA 22201-3397
Mailing Address2200 Wilson Blvd, Suite 401Arlington, VA 22201-3397 · (703) 875-0475
Phone(703) 875-0475
Sole ProprietorNo
Enumeration DateSeptember 22, 2016
Last NPPES UpdateMarch 2, 20172 updates tracked since enumeration
✔ NPI 1295284958 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinical NeuropsychologistBehavioral Health & Social Service Providers
Taxonomy Code103G00000X
License✔ Licensed in VA · 0810005344
Definition
A clinical psychologist who applies principles of assessment and intervention based upon the scientific study of human behavior as it relates to normal and abnormal functioning of the central nervous system. The specialty is dedicated to enhancing the understanding of brain-behavior relationships and the application of such knowledge to human problems.
2200 WILSON BLVD, Arlington, VA 22201
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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. Ariella Karen Gelb Marcus 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 January 1, 2020 through January 1, 2028.

Opt-Out Effective DateJanuary 1, 2020
Opt-Out In Effect ThroughJanuary 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 8

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

HAYLEY O'BRIEN M.A
Counselor (Mental Health)
2200 WILSON BLVD, SUITE 412
ARLINGTON, VA 22201
Arlington County (571) 328-7408
CAROLYN J. NOEL, PLLC
Clinical Neuropsychologist
2200 WILSON BLVD, SUITE 401
ARLINGTON, VA 22201
Arlington County (703) 875-0475
MADISON MARIE REEDER B.S., R.D.N.
Dietitian, Registered
2200 WILSON BLVD, SUITE 412
ARLINGTON, VA 22201
Arlington County (571) 317-1472
MESHA PHILLIPS
Behavior Technician
2200 WILSON BLVD
ARLINGTON, VA 22201
Arlington County (703) 651-9442
DR. ABDUL K HARES MD
Family Medicine
2200 WILSON BLVD, SUITE 102-251
ARLINGTON, VA 22201
Arlington County (248) 228-0069
DR. CAROLYN J. NOEL PSY.D.
Clinical Neuropsychologist
2200 WILSON BLVD, SUITE 401
ARLINGTON, VA 22201
Arlington County (703) 875-0475
DR. JOANNA M. CHANGO-JAMES PH.D.
Psychologist
2200 WILSON BLVD, SUITE 412
ARLINGTON, VA 22201
Arlington County (571) 328-5577
MARY KATHRYN DEACON
Psychologist
2200 WILSON BLVD
ARLINGTON, VA 22201
Arlington County (703) 539-5006

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 Ariella Gelb Marcus's NPI number?

The NPI number for Ariella Gelb Marcus is 1295284958. It was assigned to this individual provider in the NPPES registry on September 22, 2016.

Where is Ariella Gelb Marcus located?

Ariella Gelb Marcus practices at 2200 Wilson Blvd Suite 401, Arlington, VA 22201. The listed phone number is (703) 875-0475.

What is Ariella Gelb Marcus's specialty?

The primary specialty registered for this NPI is Clinical Neuropsychologist with taxonomy code 103G00000X.

Is Ariella Gelb Marcus enrolled in Medicare?

No. Ariella Gelb Marcus has opted out of Medicare through January 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.

When was this NPI record last updated?

The NPPES record for Ariella Gelb Marcus was last updated on March 2, 2017. NPI Profile syncs with the weekly NPPES data releases published by CMS.