NPPES file of Aug 9, 2026

Arsen Mastov, LCSW

Clinical Social Worker · Rego Park, NY

Arsen Mastov, LCSW is a clinical social worker with a practice address in Rego Park, New York, and NPI 1558664508, issued on Dec 14, 2010. Check the license (New York 082007, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1558664508
Name
Arsen Mastov
Credential
LCSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
082007 NY
Self-reported in NPPES; status is on the state search
Practice location
9777 Queens Blvd PH, Rego Park, NY 11374
Phone
(718) 896-9090
Enumerated
Dec 14, 2010
Record last updated
Dec 28, 2025
Medicare enrollment
Enrolled (PECOS I20140805002793); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 9777 Queens Blvd PH

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Sasha Acevedo, LMSWClinical Social Worker1851061907
  2. Caitlin Brown, LCSWClinical Social Worker1982192464
  3. Chantal Defour-Keys, SPED TEACHERSSpecialist1689936858
  4. Liliya KhalilovaSpeech-Language Pathologist1477964948
  5. Xiwen Ma, LMSWSocial Worker1518840412
  6. Mira ManashirovaStudent in an Organized Health Care Education/Training Program1407339690

Verify Arsen Mastov in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New York board licenses this profession
    Search for license 082007
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the New York license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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The practice group's MIPS final score for 2023 (Medicare payment program): 88.2 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.

  1. Qualityout of 100 · 30% of the final score56.6
  2. Costout of 100 · 30%100.0
  3. Promoting interoperabilityout of 100 · 25%85.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Jewish Board OF Family And Childrens Services IncRego Park, NY

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Arsen Mastov among 29,293 clinical social worker records in New York

Arsen Mastov, LCSW 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 2010, is newer than 42% of them.

  • NPI issued2010 · 42% of these records are older, 54% newer
  • In a Medicare fileYes · 8% of these records are
  • In the CMS Doctors and Clinicians fileYes · 17% of these records are
  • Graduated2010 · median 2001 among the 5,004 with a school on file
  • Record last updated2025 · 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).

125 clinical social worker records list a practice address in Rego Park

They are 125 of the 1,395 NPPES records with a practice address in Rego Park, and 29,293 clinical social worker records in New York.

The 8 clinical social worker records with the nearest ZIP codes

  1. Vanessa Acevedo, LCSWRego Park, NY 113741134180136
  2. David Ackerman, LCSWRego Park, NY 113741376572750
  3. Roberta Bernitt, LCSWRego Park, NY 113741083716211
  4. Phyllis Blaney, L.C.S.W.Rego Park, NY 113741407816390
  5. Dawn Blumhagen, LCSWRego Park, NY 113741619087723
  6. Michael Colletti, LCSWRego Park, NY 113741366484339
  7. Cynthia Glickstein, LCSWRego Park, NY 113741891716650
  8. Frances Goldfarb, LCSWRego Park, NY 113741427089705

Common questions

What is Arsen Mastov, LCSW's NPI number?

Arsen Mastov, LCSW's National Provider Identifier (NPI) is 1558664508, issued on Dec 14, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Arsen Mastov, LCSW located?

The NPPES record lists a practice address at 9777 Queens Blvd PH, Rego Park, NY, 11374. Phone: (718) 896-9090. Providers update this record themselves, so call before visiting.

How can I verify Arsen Mastov, LCSW's license?

NPPES lists New York license number 082007, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.

What is Arsen Mastov, LCSW's MIPS final score?

The 2023 MIPS final score is 88.2 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.