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MRS. GILLIAN ANDREA BLACKMAN-DIARRA LCSW-C
NPI 1871859215
Social Worker - Clinical in Berwyn Heights, MD

Active since April 10, 2012Opted out of Medicare · through Apr 1, 2027
6201 GREENBELT RD STE U4, BERWYN HEIGHTS, MD 20740(240) 354-8552(301) 735-5294 Get Directions Write a Review

NPPES record last updated: June 30, 2015. Verified against the NPPES registry weekly; last sync: August 23, 2026.

About Mrs. Gillian Andrea Blackman-diarra Lcsw-c NPPES

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

MRS. GILLIAN ANDREA BLACKMAN-DIARRA LCSW-C (NPI 1871859215) is an individual clinical provider in Berwyn Heights, Maryland, licensed in Maryland (17577) and active in the NPI registry since April 2012. She has opted out of Medicare through April 1, 2027 and remains eligible to order and refer.

NPPES Registry Identity

NPI1871859215
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMRS. GILLIAN ANDREA BLACKMAN-DIARRACredential: LCSW-C
Location Address6201 GREENBELT RD STE U4Berwyn Heights, MD 20740-2361
Mailing Address7015 Dolphin RdLanham, MD 20706-3908 · (240) 354-8552 · Fax (301) 735-5294
Phone(240) 354-8552
Fax(301) 735-5294
Sole ProprietorYes
Enumeration DateApril 10, 2012
Last NPPES UpdateJune 30, 2015
✔ NPI 1871859215 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in MD · 17577
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
6201 GREENBELT RD STE U4, Berwyn Heights, MD 20740
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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

Mrs. Gillian Andrea Blackman-diarra Lcsw-c 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 April 1, 2019 through April 1, 2027.

Opt-Out Effective DateApril 1, 2019
Opt-Out In Effect ThroughApril 1, 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20740 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
$0.00 typical visit price
range $65.18 – $194.86
Typical copayment $0.00 (range $16.29 – $48.71)
Most-billed visit code NA
Established Patient
$80.66 typical visit price
range $21.40 – $158.88
Typical copayment $20.16 (range $5.35 – $39.72)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

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

MINDFULNESS IN YOUR LIFE, LLC
Social Worker (Clinical)
6201 GREENBELT RD STE U4
BERWYN HEIGHTS, MD 20740
Prince George's County (301) 910-5812

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 Gillian Blackman-diarra's NPI number?

The NPI number for Gillian Blackman-diarra is 1871859215. It was assigned to this individual provider in the NPPES registry on April 10, 2012.

Where is Gillian Blackman-diarra located?

Gillian Blackman-diarra practices at 6201 Greenbelt Rd Ste U4, Berwyn Heights, MD 20740. The listed phone number is (240) 354-8552.

What is Gillian Blackman-diarra's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Is Gillian Blackman-diarra enrolled in Medicare?

No. Gillian Blackman-diarra has opted out of Medicare through April 1, 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 Gillian Blackman-diarra was last updated on June 30, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.