IndividualActive
Steven Mermelstein, LSW
NPI 1497693337 · Social Worker · Piscataway, NJ
Steven Mermelstein, LSW is a Social Worker provider in Piscataway, NJ (NPI 1497693337).
Provider details
- NPI number
- 1497693337
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Credential
- LSW
- Sex
- Male
- Sole proprietor
- Yes
- License
- 44SL06789000 (NJ)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(53/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in 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
671 Hoes Ln W
Piscataway, NJ 08854-8021
Phone: (732) 235-5879
Street-level locationGet directions
Mailing address
671 Hoes Ln W
Piscataway, NJ 08854-8021
Registry dates
- Enumerated
- 2026-03-23
- Last updated
- 2026-03-23
- Certified
- 2026-03-23
Frequently asked questions
- What is Steven Mermelstein's NPI number?
- Steven Mermelstein's National Provider Identifier (NPI) is 1497693337, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Mermelstein's specialty?
- Steven Mermelstein is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Steven Mermelstein located?
- Steven Mermelstein's practice location on file with NPPES is 671 Hoes Ln W, Piscataway, NJ 08854-8021.
- What is Steven Mermelstein's phone number?
- The practice phone number listed in the NPPES registry for Steven Mermelstein is (732) 235-5879.
- Is Steven Mermelstein's NPI active?
- Yes — Steven Mermelstein's NPI (1497693337) is active in the NPPES registry as of the last update on 2026-03-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.