IndividualActive
Mark Schonfeld, M.S.W.
NPI 1851407696 · Social Worker · New York, NY
Mark Schonfeld, M.S.W. is a Social Worker provider in New York, NY (NPI 1851407696).
Provider details
- NPI number
- 1851407696
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Credential
- M.S.W.
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(84/100 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
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
423 East 23rd Street
New York, NY 10010
Phone: (212) 686-7500
Street-level locationGet directions
Mailing address
127 Golden Gate Avenue
New Milford, NJ 07646-2614
Registry dates
- Enumerated
- 2006-08-22
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mark Schonfeld's NPI number?
- Mark Schonfeld's National Provider Identifier (NPI) is 1851407696, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Schonfeld's specialty?
- Mark Schonfeld is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Mark Schonfeld located?
- Mark Schonfeld's practice location on file with NPPES is 423 East 23rd Street, New York, NY 10010.
- What is Mark Schonfeld's phone number?
- The practice phone number listed in the NPPES registry for Mark Schonfeld is (212) 686-7500.
- Is Mark Schonfeld's NPI active?
- Yes — Mark Schonfeld's NPI (1851407696) 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.