Lawrence Propper, MSW LCSW
NPI 1336282615 · Clinical Social Worker · Mt Sinai, NY
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lawrence Propper, MSW LCSW is a Clinical Social Worker provider in Mt Sinai, NY (NPI 1336282615).
Provider details
- NPI number
- 1336282615
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- MSW LCSW
- Sex
- Male
- Sole proprietor
- No
- License
- R021518 (NM)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2007-02-15
- Last updated
- 2026-05-06
- Certified
- 2026-05-06
Frequently asked questions
- What is Lawrence Propper's NPI number?
- Lawrence Propper's National Provider Identifier (NPI) is 1336282615, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lawrence Propper's specialty?
- Lawrence Propper is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Lawrence Propper located?
- Lawrence Propper's practice location on file with NPPES is 28 North Country Rd, Mt Sinai, NY 11766.
- What is Lawrence Propper's phone number?
- The practice phone number listed in the NPPES registry for Lawrence Propper is (631) 928-2596.
- Does Lawrence Propper accept Medicare?
- Lawrence Propper is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lawrence Propper's NPI active?
- Yes — Lawrence Propper's NPI (1336282615) is active in the NPPES registry as of the last update on 2026-05-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.