Mary Hall, MSW
NPI 1346459955 · Clinical Social Worker · Washington, DC
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Hall, MSW is a Clinical Social Worker provider in Washington, DC (NPI 1346459955).
Provider details
- NPI number
- 1346459955
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- MSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- LC303010 (DC)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% 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
Mailing address
Registry dates
- Enumerated
- 2007-05-21
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mary Hall's NPI number?
- Mary Hall's National Provider Identifier (NPI) is 1346459955, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Hall's specialty?
- Mary Hall is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Mary Hall located?
- Mary Hall's practice location on file with NPPES is 530 7th St Se, Washington, DC 20003-2768.
- What is Mary Hall's phone number?
- The practice phone number listed in the NPPES registry for Mary Hall is (202) 543-4645.
- Does Mary Hall accept Medicare?
- Mary Hall is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Hall's NPI active?
- Yes — Mary Hall's NPI (1346459955) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.