Mark Laster, LCSW
NPI 1578765939 · Clinical Social Worker · Rego Park, NY
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Laster, LCSW is a Clinical Social Worker provider in Rego Park, NY (NPI 1578765939).
Provider details
- NPI number
- 1578765939
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Male
- Sole proprietor
- Yes
- License
- R026562 (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
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
- 2007-06-05
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mark Laster's NPI number?
- Mark Laster's National Provider Identifier (NPI) is 1578765939, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Laster's specialty?
- Mark Laster is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Mark Laster located?
- Mark Laster's practice location on file with NPPES is 6515 Alderton St, Rego Park, NY 11374-5052.
- What is Mark Laster's phone number?
- The practice phone number listed in the NPPES registry for Mark Laster is (646) 515-9083.
- Does Mark Laster accept Medicare?
- Mark Laster is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Laster's NPI active?
- Yes — Mark Laster's NPI (1578765939) 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.