Marc Mason
Clinical Social Worker · New York, NY
Marc Mason is a clinical social worker with a practice address in New York, New York, and NPI 1023429644, issued on May 16, 2014. Check the license (New York 087233, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marc Mason
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- 087233 NY
Self-reported in NPPES; status is on the state search - Practice location
- 4500 Broadway Apt 1B, New York, NY 10040
- Phone
- (347) 205-1691
- Enumerated
- May 16, 2014
- Record last updated
- May 16, 2014 (not updated in 12 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 29,293 in New York → Look up another NPI →
Verify Marc Mason in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New York board licenses this profession
Search for license 087233Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 92.2 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Marc Mason among 29,293 clinical social worker records in New York
Marc Mason is one of 29,293 clinical social worker records with a practice address in New York. 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 2014, is newer than 57% of them.
- NPI issued2014 · 57% of these records are older, 40% newer
- In a Medicare fileYes · 8% of these records are
- In the CMS Doctors and Clinicians fileNo · 17% of these records are
- Record last updated2014 · 65% 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 New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
6,908 clinical social worker records list a practice address in New York
They are 6,908 of the 98,468 NPPES records with a practice address in New York, and 29,293 clinical social worker records in New York.
All 29,293 in New York → Every provider in New York → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Cesar Bujosa, LCSWNew York, NY 100401649294349
- Samuel Carlisle, LCSWNew York, NY 100401548542483
- Margarita GuergueNew York, NY 100401659662286
- Yvonne Henry, L.C.S.W.New York, NY 100401073755138
- Richard Horowitz, LCSWNew York, NY 100401356434740
- Maria Kargman, LCSWNew York, NY 100401568771277
- Joy Leftow, LCSWNew York, NY 100401396026050
- Beatriz Mejia, LMSWNew York, NY 100401871873646
Common questions
What is Marc Mason's NPI number?
Marc Mason's National Provider Identifier (NPI) is 1023429644, issued on May 16, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Marc Mason located?
The NPPES record lists a practice address at 4500 Broadway Apt 1B, New York, NY, 10040. Phone: (347) 205-1691. Providers update this record themselves, so call before visiting.
How can I verify Marc Mason's license?
NPPES lists New York license number 087233, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
What is Marc Mason's MIPS final score?
The 2023 MIPS final score is 92.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.