IndividualActive
Stephen Marcus, LMSW
NPI 1811371545 · Social Worker · Brooklyn, NY
Stephen Marcus, LMSW is a Social Worker provider in Brooklyn, NY (NPI 1811371545).
Provider details
- NPI number
- 1811371545
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Credential
- LMSW
- Sex
- Male
- Sole proprietor
- No
- License
- 073827 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(73/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 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
7701 13th Ave
Brooklyn, NY 11228-2413
Phone: (718) 232-1351
Street-level locationGet directions
Mailing address
9707 4th Ave Apt 2b
Brooklyn, NY 11209-8136
Registry dates
- Enumerated
- 2015-07-13
- Last updated
- 2015-08-31
Frequently asked questions
- What is Stephen Marcus's NPI number?
- Stephen Marcus's National Provider Identifier (NPI) is 1811371545, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Marcus's specialty?
- Stephen Marcus is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Stephen Marcus located?
- Stephen Marcus's practice location on file with NPPES is 7701 13th Ave, Brooklyn, NY 11228-2413.
- What is Stephen Marcus's phone number?
- The practice phone number listed in the NPPES registry for Stephen Marcus is (718) 232-1351.
- Is Stephen Marcus's NPI active?
- Yes — Stephen Marcus's NPI (1811371545) is active in the NPPES registry as of the last update on 2015-08-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.