1. Home
  2. Directory
  3. Virginia
  4. Mclean
  5. Psychologist
  6. NPI Profile

DR. MARY ANN BISHAY PSY.D.
NPI 1831914241
Psychologist - Clinical in Mclean, VA

Active since November 20, 2024PECOS Enrolled
7921 JONES BRANCH DRIVE, SUITE 311, MCLEAN, VA 22102(703) 772-4428(571) 384-6309 Get Directions Write a Review

NPPES record last updated: August 25, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Aug 25, 2026, Nov 20, 2024 (2 updates tracked since 2024).

About Dr. Mary Ann Bishay Psy.d. NPPES

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

DR. MARY ANN BISHAY PSY.D. (NPI 1831914241) is an individual clinical provider in Mclean, Virginia, licensed in Virginia (0810008708) and active in the NPI registry since November 2024. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2010).

NPPES Registry Identity

NPI1831914241
Entity TypeIndividualFemale
Primary Taxonomy103TC0700X
Provider Legal NameDR. MARY ANN BISHAYCredential: PSY.D.
Location Address7921 JONES BRANCH DRIVE, SUITE 311Mclean, VA 22102-3334
Mailing Address8401 Mayland Dr Ste ARichmond, VA 23294-4648 · (973) 851-8967
Phone(703) 772-4428
Fax(571) 384-6309
Sole ProprietorNo
Medical School CMSOtherGraduated 2010
Enumeration DateNovember 20, 2024
Last NPPES UpdateAugust 25, 20262 updates tracked since enumeration
NPPES CertifiedAugust 25, 2026
✔ NPI 1831914241 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 VA · 0810008708
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.
7921 JONES BRANCH DRIVE, Mclean, VA 22102
Open in Google Maps ↗

Secondary Practice Locations 2

Location 111710 Plaza America DrReston, VA 20190-4742 · Phone (973) 851-8967
Location 28401 Mayland Dr Ste ARichmond, VA 23294-4648 · Phone (973) 851-8967

Other Identifiers 2

Medicaid30018675690001VA
Medicaid1831914241VA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Mary Ann Bishay Psy.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID7113481912
PECOS Enrollment IDI20260713002930
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Mary Ann Bishay reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Loudoun Medical Group, PC
5.9 mi
Vascular & Interventional Radiology
1801 ROBERT FULTON DRIVE, SUITE 510
Reston, VA 20191
  • Reassigned Medicare billing, District of Columbia enrollment
  • 135 clinicians in this Medicare group
NPI 1669147583 (703) 783-5355

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 22102 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$194.86 typical visit price
range $65.18 – $194.86
Typical copayment $48.71 (range $16.29 – $48.71)
Most-billed visit code 99205
Established Patient
$113.72 typical visit price
range $21.40 – $158.88
Typical copayment $28.43 (range $5.35 – $39.72)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Mary Ann Bishay's NPI number?

The NPI number for Mary Ann Bishay is 1831914241. It was assigned to this individual provider in the NPPES registry on November 20, 2024.

Where is Mary Ann Bishay located?

Mary Ann Bishay practices at 7921 Jones Branch Drive Suite 311, Mclean, VA 22102. The listed phone number is (703) 772-4428.

What is Mary Ann Bishay's specialty?

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

Is Mary Ann Bishay enrolled in Medicare?

Yes. Mary Ann Bishay is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Mary Ann Bishay's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mary Ann Bishay reassigns Medicare benefits to Loudoun Medical Group, PC (Reston, VA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mary Ann Bishay's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mary Ann Bishay accept?

Health plans from Oscar Health list Mary Ann Bishay 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 Mary Ann Bishay was last updated on August 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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.