David Marshall
NPI 1538740071 · Addiction (Substance Use Disorder) Counselor · Brooklyn, NY
David Marshall is a Addiction (Substance Use Disorder) Counselor provider in Brooklyn, NY (NPI 1538740071).
Provider details
- NPI number
- 1538740071
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
- General Acute Care Hospital282N00000X
Hospitals
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 yrs in NPPES 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
Mailing address
Registry dates
- Enumerated
- 2021-04-16
- Last updated
- 2021-04-20
- Certified
- 2021-04-20
Frequently asked questions
- What is David Marshall's NPI number?
- David Marshall's National Provider Identifier (NPI) is 1538740071, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Marshall's specialty?
- David Marshall is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is David Marshall located?
- David Marshall's practice location on file with NPPES is 880 Bergen St, Brooklyn, NY 11238-3301.
- What is David Marshall's phone number?
- The practice phone number listed in the NPPES registry for David Marshall is (718) 613-7529.
- Is David Marshall's NPI active?
- Yes — David Marshall's NPI (1538740071) is active in the NPPES registry as of the last update on 2021-04-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.