Mark Leone, LICSW
Clinical Social Worker · Boston, MA
Mark Leone, LICSW is a clinical social worker with a practice address in Boston, Massachusetts, and NPI 1164914388, issued on Jun 4, 2018. Check the license (Massachusetts 120604, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mark Leone
- Credential
- LICSW
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- 120604 MA
Self-reported in NPPES; status is on the state search - Practice location
- 55 Fruit St Ste Yawkey9e, Boston, MA 02114
- Phone
- (617) 643-6438
- Enumerated
- Jun 4, 2018
- Record last updated
- Sep 2, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20210409000863); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 17,815 in Massachusetts → Look up another NPI →
Verify Mark Leone in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 120604Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Lahey Clinic IncBurlington, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Leone among 17,815 clinical social worker records in Massachusetts
Mark Leone, LICSW is one of 17,815 clinical social worker records with a practice address in Massachusetts. 8% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 65% of them.
- NPI issued2018 · 65% of these records are older, 23% newer
- In a Medicare fileYes · 8% of these records are
- In the CMS Doctors and Clinicians fileYes · 17% of these records are
- Graduated2015 · median 2004 among the 3,059 with a school on file
- Record last updated2021 · 68% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1041C0700X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,906 clinical social worker records list a practice address in Boston
They are 1,906 of the 41,865 NPPES records with a practice address in Boston, and 17,815 clinical social worker records in Massachusetts.
All 17,815 in Massachusetts → Every provider in Boston → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Cheryl Abel, MSWBoston, MA 021141487741948
- Mark Abelman, LICSWBoston, MA 021141306993928
- Melissa Alao, MSWBoston, MA 021141396817839
- Chaia Bekefi, MSWBoston, MA 021141205926334
- Renee Gallagher, LICSWBoston, MA 021141871535401
- Gloria Goldwyn-Liff, MSW, LICSWBoston, MA 021141942212063
- Holly Humphreys, LICSW, PHDBoston, MA 021141144380924
- Carol Klein, MSWBoston, MA 021141629180286
Common questions
What is Mark Leone, LICSW's NPI number?
Mark Leone, LICSW's National Provider Identifier (NPI) is 1164914388, issued on Jun 4, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Mark Leone, LICSW located?
The NPPES record lists a practice address at 55 Fruit St Ste Yawkey9e, Boston, MA, 02114. Phone: (617) 643-6438. Providers update this record themselves, so call before visiting.
How can I verify Mark Leone, LICSW's license?
NPPES lists Massachusetts license number 120604, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.