NPPES file of Aug 9, 2026

Marcel J. Sislowitz

Ophthalmology Physician · New York, NY

Marcel J. Sislowitz is an ophthalmology physician with a practice address in New York, New York, and NPI 1124050109, issued on Jul 7, 2006. Check the license (New York 094924, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1124050109
Name
Marcel J. Sislowitz
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
094924 NY
Self-reported in NPPES; status is on the state search
Practice location
585 W End Ave, New York, NY 10024
Phone
(212) 362-4200
Enumerated
Jul 7, 2006
Record last updated
Oct 25, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(212) 721-1392
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 585 W End Ave

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

  1. Susan Charney, MSWClinical Social Worker1467574822
  2. Sabrina Cherry, M.D.Psychiatry Physician1417075920
  3. Lora Heller, MS, MT-BC, LCATMental Health Counselor1346485216
  4. Kathleen Martin, LCSWSocial Worker1831527241
  5. Penny RubinfineClinical Social Worker1407077837
  6. Lee Saltzman, PSY.D.Clinical Child & Adolescent Psychologist1275792947

Verify Marcel J. Sislowitz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
    Search for license 094924
    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
Open the New York license search

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70% fewer Medicare Part D claims than the average ophthalmology physician in 2024

459 Medicare Part D claims for 126 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 29% of claims.

  1. Marcel Sislowitz459
  2. Specialty average1,518

Most prescribed

  1. Latanoprost180 claims
  2. Dorzolamide-Timolol41 claims
  3. Timolol Maleate37 claims
  4. Dorzolamide Hcl29 claims
  5. Tobramycin-Dexamethasone26 claims
  6. Rocklatan22 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The MIPS final score for 2023 (Medicare payment program): 0 of 100

The Merit-based Incentive Payment System score is reported for this clinician. 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 score0.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities0 of 40 points · 15%0.0

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

Marcel J. Sislowitz among 1,822 ophthalmology physician records in New York

Marcel J. Sislowitz is one of 1,822 ophthalmology physician records with a practice address in New York. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 16% of them.

  • NPI issued2006 · 16% of these records are older, 34% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 67% of these records are
  • Record last updated2007 · 71% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in New York

There are 1,822 ophthalmology physician records in New York.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Norman Appel, MDNew York, NY 100241518037621
  2. Raphael Castillo, MDNew York, NY 100241770664294
  3. Gerald Hecker, MDNew York, NY 100241518952696
  4. Mark Hornfeld, DONew York, NY 100241467428573
  5. Daniel Klapper, M.D.New York, NY 100241538106703
  6. Jacqueline Lustgarten, M.D.New York, NY 100241821358409
  7. Cynthia Miller, MDNew York, NY 100241124127915
  8. Barbara Phillips, M.D.New York, NY 100241558667782

Common questions

What is Marcel J. Sislowitz's NPI number?

Marcel J. Sislowitz's National Provider Identifier (NPI) is 1124050109, issued on Jul 7, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Marcel J. Sislowitz located?

The NPPES record lists a practice address at 585 W End Ave, New York, NY, 10024. Phone: (212) 362-4200. Providers update this record themselves, so call before visiting.

How can I verify Marcel J. Sislowitz's license?

NPPES lists New York license number 094924, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Marcel J. Sislowitz prescribe under Medicare Part D?

In 2024, Marcel J. Sislowitz had 459 Medicare Part D claims for 126 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.

What is Marcel J. Sislowitz's MIPS final score?

The 2023 MIPS final score is 0 of 100. 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.