IndividualActive
Marc Liff, LMSW
NPI 1053607788 · Social Worker · Brooklyn, NY
Marc Liff, LMSW is a Social Worker provider in Brooklyn, NY (NPI 1053607788).
Provider details
- NPI number
- 1053607788
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Credential
- LMSW
- Sex
- Male
- Sole proprietor
- Yes
- License
- 72-082601 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(81/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 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
198 Foster Ave
Suite D
Brooklyn, NY 11230-2133
Phone: (718) 666-1009
Street-level locationGet directions
Mailing address
2470 W 1st St Apt 2h
Brooklyn, NY 11223-5957
Registry dates
- Enumerated
- 2011-06-21
- Last updated
- 2011-06-21
Frequently asked questions
- What is Marc Liff's NPI number?
- Marc Liff's National Provider Identifier (NPI) is 1053607788, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marc Liff's specialty?
- Marc Liff is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Marc Liff located?
- Marc Liff's practice location on file with NPPES is 198 Foster Ave, Brooklyn, NY 11230-2133.
- What is Marc Liff's phone number?
- The practice phone number listed in the NPPES registry for Marc Liff is (718) 666-1009.
- Is Marc Liff's NPI active?
- Yes — Marc Liff's NPI (1053607788) is active in the NPPES registry as of the last update on 2011-06-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.