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Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

TANJI FELICIA HARPER
NPI 1396660288
Social Worker in Washington, DC

Active since August 11, 2026
3400 MARTIN LUTHER KING JR AVE SE, WASHINGTON, DC 20032(202) 724-7666 Get Directions Write a Review

NPPES record added: August 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Tanji Felicia Harper NPPES

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

TANJI FELICIA HARPER (NPI 1396660288) is an individual social worker in Washington, District Of Columbia, licensed in District Of Columbia (LG200004759) and active in the NPI registry since August 2026.

NPPES Registry Identity

NPI1396660288
Entity TypeIndividualFemale
Primary Taxonomy104100000X
Provider Legal NameTANJI FELICIA HARPER
Location Address3400 MARTIN LUTHER KING JR AVE SEWashington, DC 20032-1542
Mailing Address10110 Goldfinch CtClinton, MD 20735-5852 · (202) 724-7666
Phone(202) 724-7666
Sole ProprietorNo
Enumeration DateAugust 11, 2026
Last NPPES UpdateAugust 13, 2026
NPPES CertifiedAugust 13, 2026
✔ NPI 1396660288 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
License✔ Licensed in DC · LG200004759
Definition
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.
3400 MARTIN LUTHER KING JR AVE SE, Washington, DC 20032
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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.

CHENGJIAOYANG XUE
Counselor (Mental Health)
3400 MARTIN LUTHER KING JR AVE SE
WASHINGTON, DC 20032
District of Columbia (717) 869-8951
DELANEY KARELYNN CALDWELL LGPC, CRC
Counselor (Mental Health)
3400 MARTIN LUTHER KING JR AVE SE
WASHINGTON, DC 20032
District of Columbia (202) 724-7666
MS. CRISTIN ANTHONY
Counselor (Mental Health)
3400 MARTIN LUTHER KING JR AVE SE
WASHINGTON, DC 20032
District of Columbia (202) 724-7666
PROF. MARILYN BROWN LGSW
Social Worker (School)
3400 MARTIN LUTHER KING JR AVE SE
WASHINGTON, DC 20032
District of Columbia (202) 257-6970
JENNA COLUMBIA
Counselor (Mental Health)
3400 MARTIN LUTHER KING JR AVE SE
WASHINGTON, DC 20032
District of Columbia (202) 724-7666
AYSIA CHANEL STOVALL LGPC
Counselor (Mental Health)
3400 MARTIN LUTHER KING JR AVE SE
WASHINGTON, DC 20032
District of Columbia (202) 724-7666
AMY PATRICIA FOX OTR/L
Occupational Therapist
3400 MARTIN LUTHER KING JR AVE SE
WASHINGTON, DC 20032
District of Columbia (202) 341-7222
MS. NICOLET CHARICE HENDERSON LPC, NCC
Counselor (Professional)
3400 MARTIN LUTHER KING JR AVE SE
WASHINGTON, DC 20032
District of Columbia (202) 724-7666

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 Tanji Harper's NPI number?

The NPI number for Tanji Harper is 1396660288. It was assigned to this individual provider in the NPPES registry on August 11, 2026.

Where is Tanji Harper located?

Tanji Harper practices at 3400 Martin Luther King Jr Ave SE, Washington, DC 20032. The listed phone number is (202) 724-7666.

What is Tanji Harper's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

When was this NPI record last updated?

The NPPES record for Tanji Harper was last updated on August 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 days 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.