GRACE CLAIRE RIDDELL L.I.C.S.W., L.C.S.W.
NPI 1053367078
Social Worker - Clinical in Washington, DC

Active since May 25, 2006Opted out of Medicare · through Apr 1, 2027
3000 CONNECTICUT AVE NW, SUITE 137, WASHINGTON, DC 20008(301) 942-3237(301) 942-2047 Get Directions Write a Review

NPPES record last updated: July 6, 2010. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Grace Claire Riddell L.i.c.s.w., L.c.s.w. NPPES

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

GRACE CLAIRE RIDDELL L.I.C.S.W., L.C.S.W. (NPI 1053367078) is an individual clinical provider in Washington, District Of Columbia, licensed in District Of Columbia (LC301378) and active in the NPI registry since May 2006. She has opted out of Medicare through April 1, 2027 and remains eligible to order and refer.

NPPES Registry Identity

NPI1053367078
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameGRACE CLAIRE RIDDELLCredential: L.I.C.S.W., L.C.S.W.
Location Address3000 CONNECTICUT AVE NW, SUITE 137Washington, DC 20008-2509
Mailing Address3000 Connecticut Avenue Nw, Suite 137Washington, DC 20008 · (301) 942-3237 · Fax (301) 942-2047
Fax(301) 942-2047
Sole ProprietorYes
Enumeration DateMay 25, 2006
Last NPPES UpdateJuly 6, 2010
NPI 1053367078 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
Licenses Licensed in DC · LC301378 Licensed in MD · 05523
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.

3000 CONNECTICUT AVE NW, Washington, DC 20008

Other Identifiers 3

Medicare ID-Type Unspecified000B30M32
Medicare ID-Type Unspecified674441
Medicare UPINR24811

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Opted out of Medicare

Grace Claire Riddell L.i.c.s.w., L.c.s.w. 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, 2013 through April 1, 2027.

Opt-Out Effective DateApril 1, 2013
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 20008 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 20

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

Pharmacy (Community/Retail Pharmacy)
3000 CONNECTICUT AVE NW
WASHINGTON, DC 20008
Social Worker (Clinical)
3000 CONNECTICUT AVE NW, SUITE 408
WASHINGTON, DC 20008
Counselor (Mental Health)
3000 CONNECTICUT AVE NW, SUITE 321
WASHINGTON, DC 20008
Counselor (Mental Health)
3000 CONNECTICUT AVE NW, SUITE 306
WASHINGTON, DC 20008
Psychiatry & Neurology (Psychiatry)
3000 CONNECTICUT AVE NW, 106
WASHINGTON, DC 20008
Psychologist (Clinical)
3000 CONNECTICUT AVE NW, SUITE 134
WASHINGTON, DC 20008
Acupuncturist
3000 CONNECTICUT AVE NW, SUITE 102
WASHINGTON, DC 20008
Clinic/Center (Adult Mental Health)
3000 CONNECTICUT AVE NW, #208
WASHINGTON, DC 20008

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 Grace Riddell's NPI number?

The NPI number for Grace Riddell is 1053367078. It was assigned to this individual provider in the NPPES registry on May 25, 2006.

Where is Grace Riddell located?

Grace Riddell practices at 3000 Connecticut Ave NW Suite 137, Washington, DC 20008. The listed phone number is (301) 942-3237.

What is Grace Riddell's specialty?

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

Is Grace Riddell enrolled in Medicare?

No. Grace Riddell 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 Grace Riddell was last updated on July 6, 2010. NPI Profile syncs with the weekly NPPES data releases published by CMS.