Jason Marchwinski, LCSW
NPI 1326470162 · Clinical Social Worker · Brooklyn, NY
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jason Marchwinski, LCSW is a Clinical Social Worker provider in Brooklyn, NY (NPI 1326470162).
Provider details
- NPI number
- 1326470162
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Male
- Sole proprietor
- No
- License
- 085040 (NY)
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
12 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
- 2013-08-03
- Last updated
- 2018-12-17
Frequently asked questions
- What is Jason Marchwinski's NPI number?
- Jason Marchwinski's National Provider Identifier (NPI) is 1326470162, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jason Marchwinski's specialty?
- Jason Marchwinski is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Jason Marchwinski located?
- Jason Marchwinski's practice location on file with NPPES is 300 Cadman Plz W Fl 17, Brooklyn, NY 11201-3229.
- What is Jason Marchwinski's phone number?
- The practice phone number listed in the NPPES registry for Jason Marchwinski is (718) 687-4999.
- Does Jason Marchwinski accept Medicare?
- Jason Marchwinski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jason Marchwinski's NPI active?
- Yes — Jason Marchwinski's NPI (1326470162) is active in the NPPES registry as of the last update on 2018-12-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.