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Sierra Marbley
NPI 1164396560 · Case Manager/Care Coordinator · Washington, DC
Sierra Marbley is a Case Manager/Care Coordinator provider in Washington, DC (NPI 1164396560).
Provider details
- NPI number
- 1164396560
- Entity type
- Individual
- Primary specialty
- Case Manager/Care CoordinatorOther Service Providers
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Other Service Providers
Profile Score
Basic profile(47/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
3000 Pennsylvania Ave Se
Washington, DC 20020-3718
Phone: (202) 581-0490
Fax: (202) 388-4339
Approximate (ZIP-level) locationGet directions
Mailing address
4015 Alton St
Capitol Heights, MD 20743-5604
Registry dates
- Enumerated
- 2025-09-30
- Last updated
- 2025-09-30
- Certified
- 2025-09-30
Frequently asked questions
- What is Sierra Marbley's NPI number?
- Sierra Marbley's National Provider Identifier (NPI) is 1164396560, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sierra Marbley's specialty?
- Sierra Marbley is listed in the NPPES registry with a primary specialty of Case Manager/Care Coordinator (Other Service Providers).
- Where is Sierra Marbley located?
- Sierra Marbley's practice location on file with NPPES is 3000 Pennsylvania Ave Se, Washington, DC 20020-3718.
- What is Sierra Marbley's phone number?
- The practice phone number listed in the NPPES registry for Sierra Marbley is (202) 581-0490.
- Is Sierra Marbley's NPI active?
- Yes — Sierra Marbley's NPI (1164396560) is active in the NPPES registry as of the last update on 2025-09-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.