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SIERRA MARBLEY
NPI 1164396560
Case Manager/Care Coordinator in Washington, DC

Active since September 30, 2025
3000 PENNSYLVANIA AVE SE, WASHINGTON, DC 20020(202) 581-0490(202) 388-4339 Get Directions Write a Review

NPPES record last updated: September 30, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Sierra Marbley NPPES

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

SIERRA MARBLEY (NPI 1164396560) is an individual case manager/care coordinator provider in Washington, District Of Columbia and active in the NPI registry since September 2025.

NPPES Registry Identity

NPI1164396560
Entity TypeIndividualFemale
Primary Taxonomy171M00000X
Provider Legal NameSIERRA MARBLEY
Location Address3000 PENNSYLVANIA AVE SEWashington, DC 20020-3718
Mailing Address4015 Alton StCapitol Heights, MD 20743-5604 · (240) 795-9243
Phone(202) 581-0490
Fax(202) 388-4339
Sole ProprietorYes
Enumeration DateSeptember 30, 2025
NPPES CertifiedSeptember 30, 2025
✔ NPI 1164396560 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCase Manager/Care CoordinatorOther Service Providers
Taxonomy Code171M00000X
Definition
A person who provides case management services and assists an individual in gaining access to needed medical, social, educational, and/or other services. The person has the ability to provide an assessment and review of completed plan of care on a periodic basis. This person is also able to take collaborative action to coordinate the services with other providers and monitor the enrollee's progress toward the cost-effective achievement of objectives specified in the plan of care. Credentials may vary from an experience in the fields of psychology, social work, rehabilitation, nursing or a closely related human service field, to a related Assoc of Arts Degree or to nursing credentials. Some states may require certification in case management.
3000 PENNSYLVANIA AVE SE, Washington, DC 20020
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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.

NAOMI BEASON
Counselor
3000 PENNSYLVANIA AVE SE
WASHINGTON, DC 20020
District of Columbia (202) 581-0490
WALTER GEORGE
Counselor (Mental Health)
3000 PENNSYLVANIA AVE SE
WASHINGTON, DC 20020
District of Columbia (202) 581-0490
GAREY THOMAS GORDON
Case Manager/Care Coordinator
3000 PENNSYLVANIA AVE SE
WASHINGTON, DC 20020
District of Columbia (202) 581-0490
ERICA ANN CREWS
Counselor (Mental Health)
3000 PENNSYLVANIA AVE SE
WASHINGTON, DC 20020
District of Columbia (202) 581-0790
ARMELLE AKELE NTOUGOU
Counselor (Mental Health)
3000 PENNSYLVANIA AVE SE
WASHINGTON, DC 20020
District of Columbia (202) 581-0412
BETTY ANN PALMORE LPC
Counselor (Professional)
3000 PENNSYLVANIA AVE SE
WASHINGTON, DC 20020
District of Columbia (202) 581-0490
MR. ROBERT C. HARDIN SR. CAC-AD
Case Manager/Care Coordinator
3000 PENNSYLVANIA AVE SE
WASHINGTON, DC 20020
District of Columbia (202) 581-0490
DR. THOMAS MILTON IRVIN
Case Manager/Care Coordinator
3000 PENNSYLVANIA AVE SE
WASHINGTON, DC 20020
District of Columbia (202) 581-0490

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 Sierra Marbley's NPI number?

The NPI number for Sierra Marbley is 1164396560. It was assigned to this individual provider in the NPPES registry on September 30, 2025.

Where is Sierra Marbley located?

Sierra Marbley practices at 3000 Pennsylvania Ave SE, Washington, DC 20020. The listed phone number is (202) 581-0490.

What is Sierra Marbley's specialty?

The primary specialty registered for this NPI is Case Manager/Care Coordinator with taxonomy code 171M00000X.

When was this NPI record last updated?

The NPPES record for Sierra Marbley was last updated on September 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.