IndividualActive
Martin Koser, LCSW R
NPI 1366580516 · Clinical Social Worker · Brooklyn, NY
Martin Koser, LCSW R is a Clinical Social Worker provider in Brooklyn, NY (NPI 1366580516).
Provider details
- NPI number
- 1366580516
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW R
- Sex
- Male
- Sole proprietor
- No
- License
- PR021147 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(90/100 index)
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
2936 Nostrand Avenue
Brooklyn, NY 11229
Phone: (718) 258-1902
Fax: (718) 253-4421
Street-level locationGet directions
Mailing address
2936 Nostrand Ave
Brooklyn, NY 11229
Registry dates
- Enumerated
- 2007-02-01
- Last updated
- 2007-07-08
Frequently asked questions
- What is Martin Koser's NPI number?
- Martin Koser's National Provider Identifier (NPI) is 1366580516, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Martin Koser's specialty?
- Martin Koser is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Martin Koser located?
- Martin Koser's practice location on file with NPPES is 2936 Nostrand Avenue, Brooklyn, NY 11229.
- What is Martin Koser's phone number?
- The practice phone number listed in the NPPES registry for Martin Koser is (718) 258-1902.
- Is Martin Koser's NPI active?
- Yes — Martin Koser's NPI (1366580516) 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.