NPPES file of Aug 9, 2026

Mark P. Ghassibi, MD

Retina Specialist (Ophthalmology) Physician · New York, NY

Mark P. Ghassibi, MD is a retina specialist (ophthalmology) physician with a practice address in New York, New York, and NPI 1356871230, issued on Jun 14, 2017. Check the license (New York 311158, 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
1356871230
Name
Mark P. Ghassibi
Credential
MD
Primary taxonomy
Retina Specialist (Ophthalmology) Physician 207WX0107X
License number
311158 NY
Self-reported in NPPES; status is on the state search
Practice location
1000 10TH Ave, New York, NY 10019
Phone
(212) 523-4000
Enumerated
Jun 14, 2017
Record last updated
Oct 11, 2023
Medicare enrollment
Enrolled (PECOS I20230830002989); accepts Medicare assignment
Medical or professional school
George Washington University School Of Medicine, 2016
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 1000 10TH Ave

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

  1. Fatmaalzahraa AbdelqaderHospitalist Physician1295296473
  2. Minako Abe, MDEmergency Medicine Physician1578635249
  3. Ayelet AbelowHospitalist Physician1073141578
  4. Michael Abiri, M.D.Diagnostic Radiology Physician1598718298
  5. Adal Abonamah, DOStudent in an Organized Health Care Education/Training Program1821790916
  6. Joseph Abraham, MD, MBAStudent in an Organized Health Care Education/Training Program1316649288

Verify Mark P. Ghassibi 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 311158
    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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65% more Medicare Part D claims than the average retina specialist (ophthalmology) physician in 2024

1,020 Medicare Part D claims for 164 beneficiaries, against an average of 620 among the 1,449 providers of this specialty who prescribed in Part D. Brand-name drugs were 42% of claims.

  1. Mark Ghassibi1,020
  2. Specialty average620

Most prescribed

  1. Latanoprost271 claims
  2. Brimonidine Tartrate174 claims
  3. Dorzolamide-Timolol125 claims
  4. Prednisolone Acetate84 claims
  5. Rhopressa56 claims
  6. Ketorolac Tromethamine54 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): 93.5 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 score72.6
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%90.6
  4. Improvement activities40 of 40 points · 15%100.0

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

Industry payments in 2024: $57.17

2 payments; by number, the most common kind was food and beverage; the largest payer was Carl Zeiss Meditec USA, Inc. The 1,253 providers of this specialty with any payment received $7,667.49 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mark Ghassibi$57.17
  2. Specialty average$7,667.49

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Amboy Medical Practice PCStaten Island, NY
  2. University Physicians OF Brooklyn, Inc.Brooklyn, NY

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

Mark P. Ghassibi among 102 retina specialist (ophthalmology) physician records in New York

Mark P. Ghassibi, MD is one of 102 retina specialist (ophthalmology) physician records with a practice address in New York. over 99% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 85% of them.

  • NPI issued2017 · 85% of these records are older, 13% newer
  • In a Medicare fileYes · over 99% of these records are
  • In the CMS Doctors and Clinicians fileYes · 96% of these records are
  • Graduated2016 · median 2004 among the 98 with a school on file
  • Record last updated2023 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207WX0107X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Retina Specialist (Ophthalmology) Physician providers in New York

There are 102 retina specialist (ophthalmology) physician records in New York.

The 8 retina specialist (ophthalmology) physician records with the nearest ZIP codes

  1. Harry Engel, MDNew York, NY 100191982785317
  2. Donald D'Amico, MDNew York, NY 100211326022096
  3. Muhamad Festok, MDNew York, NY 100211356802052
  4. Mahmood KhanNew York, NY 100211831551795
  5. Szilard Kiss, MDNew York, NY 100211023076593
  6. Eleni Konstantinou, MDNew York, NY 100211548798317
  7. Kyle Kovacs, MDNew York, NY 100211477971505
  8. Mhd Abdallah Mahrous, M.D.New York, NY 100211003298365

Common questions

What is Mark P. Ghassibi, MD's NPI number?

Mark P. Ghassibi, MD's National Provider Identifier (NPI) is 1356871230, issued on Jun 14, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Mark P. Ghassibi, MD located?

The NPPES record lists a practice address at 1000 10TH Ave, New York, NY, 10019. Phone: (212) 523-4000. Providers update this record themselves, so call before visiting.

How can I verify Mark P. Ghassibi, MD's license?

NPPES lists New York license number 311158, 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 P. Ghassibi, MD prescribe under Medicare Part D?

In 2024, Mark P. Ghassibi, MD had 1,020 Medicare Part D claims for 164 beneficiaries; the average among retina specialist (ophthalmology) physician prescribers was 620. Part D covers Medicare prescriptions only.

What is Mark P. Ghassibi, MD's MIPS final score?

The 2023 MIPS final score is 93.5 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.