NPPES file of Aug 9, 2026

Mark A. Greenberg, MD

Critical Care Medicine (Internal Medicine) Physician · Bronx, NY

Mark A. Greenberg, MD is a critical care medicine (internal medicine) physician with a practice address in Bronx, New York, and NPI 1376628149, issued on Oct 27, 2006. Check the license (New York 120830, 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
1376628149
Name
Mark A. Greenberg
Credential
MD
Primary taxonomy
Critical Care Medicine (Internal Medicine) Physician 207RC0200X
License number
120830 NY
Self-reported in NPPES; status is on the state search
Practice location
Mmc - Dept. OF Medicine, Bronx, NY 10467
Phone
(718) 920-4212
Enumerated
Oct 27, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20060324000377); may accept Medicare assignment
Medical or professional school
University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1973
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 Mmc - Dept. OF Medicine

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

  1. Peter Alpert, MDInfectious Disease Physician1104916907
  2. Lawrence Brandt, MDGastroenterology Physician1477643369
  3. Michela Catalano, MDInfectious Disease Physician1558446328
  4. John Chan, MDInfectious Disease Physician1487739256
  5. Odette Davis, PAPhysician Assistant1730229618
  6. Shirley Fletcher-Hall, PAPhysician Assistant1174613905

Verify Mark A. Greenberg 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 120830
    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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85% fewer Medicare Part D claims than the average critical care medicine (internal medicine) physician in 2024

107 Medicare Part D claims for 15 beneficiaries, against an average of 696 among the 2,873 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims.

  1. Mark Greenberg107
  2. Specialty average696

Most prescribed

  1. Eliquis17 claims
  2. Furosemide12 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): 100 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. Qualitynot scored (reweighted)
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  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).

Industry payments in 2024: $111.65

2 payments; by number, the most common kind was food and beverage; the largest payer was ShockWave Medical, Inc. The 2,708 providers of this specialty with any payment received $2,958.68 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mark Greenberg$111.65
  2. Specialty average$2,958.68

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

One hospital affiliation

  1. Montefiore Medical CenterBronx, NY · Acute Care Hospitals3 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Mark A. Greenberg among 486 critical care medicine (internal medicine) physician records in New York

Mark A. Greenberg, MD is one of 486 critical care medicine (internal medicine) physician records with a practice address in New York. 90% 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 7% of them.

  • NPI issued2006 · 7% of these records are older, 67% newer
  • In a Medicare fileYes · 90% of these records are
  • In the CMS Doctors and Clinicians fileYes · 80% of these records are
  • Graduated1973 · median 2006 among the 389 with a school on file
  • Record last updated2007 · 43% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Critical Care Medicine (Internal Medicine) Physician providers in New York

There are 486 critical care medicine (internal medicine) physician records in New York.

The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes

  1. Amos Dodi, M.D.Bronx, NY 104671659651883
  2. James Gasperino, MD,PH.D.Bronx, NY 104671790810398
  3. Adam Keene, MDBronx, NY 104671871634618
  4. Tim Lentini, MDBronx, NY 104671518491430
  5. Sharon Leung, M.D.Bronx, NY 104671639481328
  6. Matthew Levitus, M.D.Bronx, NY 104671205219425
  7. Amira MohamedBronx, NY 104671437560570
  8. Marjan RahmanianBronx, NY 104671033374434

Common questions

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

Mark A. Greenberg, MD's National Provider Identifier (NPI) is 1376628149, issued on Oct 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark A. Greenberg, MD located?

The NPPES record lists a practice address at Mmc - Dept. OF Medicine, Bronx, NY, 10467. Phone: (718) 920-4212. Providers update this record themselves, so call before visiting.

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

NPPES lists New York license number 120830, 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. Greenberg, MD prescribe under Medicare Part D?

In 2024, Mark A. Greenberg, MD had 107 Medicare Part D claims for 15 beneficiaries; the average among critical care medicine (internal medicine) physician prescribers was 696. Part D covers Medicare prescriptions only.

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

The 2023 MIPS final score is 100 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.