NPPES file of Aug 9, 2026

Mark A. Gelfand, MD

Plastic Surgery Physician · East Setauket, NY

Mark A. Gelfand, MD is a plastic surgery physician with a practice address in East Setauket, New York, and NPI 1659546992, issued on Apr 28, 2008. Check the license (New York 234242, 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
1659546992
Name
Mark A. Gelfand
Credential
MD
Primary taxonomy
Plastic Surgery Physician 208200000X
License number
234242 NY
Self-reported in NPPES; status is on the state search
Practice location
24 Research Way, East Setauket, NY 11733
Phone
(631) 444-4666
Enumerated
Apr 28, 2008
Record last updated
Apr 28, 2008 (not updated in 18 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20161220001278); accepts Medicare assignment
Medical or professional school
State University Of Ny Upstate Medical University, 2000
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 24 Research Way

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

  1. Howard Adler, M.D.Urology Physician1306872254
  2. Duc Bui, M.D.Plastic and Reconstructive Surgery Physician1386663896
  3. Florence Christie, N.P.Nurse Practitioner1619903432
  4. Frank Darras, M.D.Urology Physician1750323069
  5. Michael Egnor, M.D.Neurological Surgery Physician1376573949
  6. Deborah Feliciano, NPNurse Practitioner1649520370

Verify Mark A. Gelfand 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 234242
    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

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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30% more Medicare Part D claims than the average plastic surgery physician in 2024

121 Medicare Part D claims for 56 beneficiaries, against an average of 93 among the 3,527 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims. 34 claims were for opioids.

  1. Mark Gelfand121
  2. Specialty average93

Most prescribed

  1. Oxycodone Hcl28 claims
  2. Gabapentin21 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 practice group's MIPS final score for 2023 (Medicare payment program): 86 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 score77.8
  2. Costout of 100 · 30%74.2
  3. Promoting interoperabilityout of 100 · 25%99.0
  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. Legacy Clinics LLCPortland, OR

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

Mark A. Gelfand among 452 plastic surgery physician records in New York

Mark A. Gelfand, MD is one of 452 plastic surgery physician records with a practice address in New York. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 63% of them.

  • NPI issued2008 · 63% of these records are older, 27% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 47% of these records are
  • Graduated2000 · median 1998 among the 211 with a school on file
  • Record last updated2008 · 70% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208200000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Plastic Surgery Physician providers in New York

There are 452 plastic surgery physician records in New York.

The 8 plastic surgery physician records with the nearest ZIP codes

  1. Hilton Adler, MD.East Setauket, NY 117331093821464
  2. Stephen Coccaro, MD.East Setauket, NY 117331720193774
  3. Cristina Dracea, MDEast Setauket, NY 117331366691479
  4. Jason Ganz, MDEast Setauket, NY 117331215950910
  5. Kenneth Kneessy, MD.East Setauket, NY 117331851407274
  6. Elliot Duboys, MD FACSWest Hills, NY 117431851465561
  7. Jonathan Lebowitz, MDHuntington, NY 117431962561894
  8. Andrew Peredo, MDHuntington, NY 117431043509227

Common questions

What is Mark A. Gelfand, MD's NPI number?

Mark A. Gelfand, MD's National Provider Identifier (NPI) is 1659546992, issued on Apr 28, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Mark A. Gelfand, MD located?

The NPPES record lists a practice address at 24 Research Way, East Setauket, NY, 11733. Phone: (631) 444-4666. Providers update this record themselves, so call before visiting.

How can I verify Mark A. Gelfand, MD's license?

NPPES lists New York license number 234242, 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 Mark A. Gelfand, MD prescribe under Medicare Part D?

In 2024, Mark A. Gelfand, MD had 121 Medicare Part D claims for 56 beneficiaries; the average among plastic surgery physician prescribers was 93. Part D covers Medicare prescriptions only.

What is Mark A. Gelfand, MD's MIPS final score?

The 2023 MIPS final score is 86 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.