IndividualActive
Mark Leonida, LCSW
NPI 1275399131 · Clinical Social Worker · New York, NY
Mark Leonida, LCSW is a Clinical Social Worker provider in New York, NY (NPI 1275399131).
Provider details
- NPI number
- 1275399131
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Male
- Sole proprietor
- Yes
- License
- 093883 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(57/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
2 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
40 Exchange Pl Ste 510
New York, NY 10005-2775
Phone: (212) 523-4426
Street-level locationGet directions
Mailing address
332 E Allens Ln
Philadelphia, PA 19119-1101
Registry dates
- Enumerated
- 2024-02-27
- Last updated
- 2024-02-27
- Certified
- 2024-02-27
Frequently asked questions
- What is Mark Leonida's NPI number?
- Mark Leonida's National Provider Identifier (NPI) is 1275399131, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Leonida's specialty?
- Mark Leonida is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Mark Leonida located?
- Mark Leonida's practice location on file with NPPES is 40 Exchange Pl Ste 510, New York, NY 10005-2775.
- What is Mark Leonida's phone number?
- The practice phone number listed in the NPPES registry for Mark Leonida is (212) 523-4426.
- Is Mark Leonida's NPI active?
- Yes — Mark Leonida's NPI (1275399131) is active in the NPPES registry as of the last update on 2024-02-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.