NPPES file of Aug 9, 2026

Michael G. Marcus, MD

Pediatric Allergy/Immunology Physician · Brooklyn, NY

Michael G. Marcus, MD is a pediatric allergy/immunology physician with a practice address in Brooklyn, New York, and NPI 1134114192, issued on Sep 15, 2005. Check the license (New York 148903, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1134114192
Name
Michael G. Marcus
Credential
MD
Primary taxonomy
Pediatric Allergy/Immunology Physician 2080P0201X
License number
148903 NY
Self-reported in NPPES; status is on the state search
Practice location
948 48TH St, Brooklyn, NY 11219
Phone
(718) 283-8260
Enumerated
Sep 15, 2005
Record last updated
Mar 25, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(718) 635-7235
Medicaid ID
0907635 NY
Medicare enrollment
Enrolled (PECOS I20081201000673); 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.
Download card Updates feed

Also registered at 948 48TH St

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

  1. Rabia Agha, MDPediatric Infectious Diseases Physician1376524405
  2. Lisa Altshuler, PHDClinical Child & Adolescent Psychologist1205821709
  3. Erich Anderer, M.D.Neurological Surgery Physician1548451032
  4. Susan Beren, PHDClinical Child & Adolescent Psychologist1538154638
  5. Elisa Cartagena ReyesClinical Social Worker1891597092
  6. Gina Cupelli, RPHPharmacist1629391149

Verify Michael G. Marcus 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 148903
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

65% fewer Medicare Part D claims than the average pediatric allergy/immunology physician in 2024

90 Medicare Part D claims for 12 beneficiaries, against an average of 259 among the 198 providers of this specialty who prescribed in Part D. Brand-name drugs were 53% of claims.

  1. Michael Marcus90
  2. Specialty average259

Most prescribed

  1. Albuterol Sulfate Hfa15 claims
  2. Budesonide-Formoterol Fumarate15 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.

Industry payments in 2024: $198,425.72

206 payments; by number, the most common kind was travel and lodging; the largest payer was AstraZeneca Pharmaceuticals LP. The 289 providers of this specialty with any payment received $7,101.54 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Michael Marcus$198,426
  2. Specialty average$7,102

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. Maimonides Faculty Practice PlanBrooklyn, NY
  2. Mmc Pediatrics Faculty PracticeBrooklyn, NY

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

Michael G. Marcus among 57 pediatric allergy/immunology physician records in New York

Michael G. Marcus, MD is one of 57 pediatric allergy/immunology physician records with a practice address in New York. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 93% newer
  • In a Medicare fileYes · 65% of these records are
  • In the CMS Doctors and Clinicians fileYes · 28% of these records are
  • Graduated1980 · median 2003 among the 16 with a school on file
  • Record last updated2015 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0201X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Allergy/Immunology Physician providers in New York

There are 57 pediatric allergy/immunology physician records in New York.

The 8 pediatric allergy/immunology physician records with the nearest ZIP codes

  1. Irina KatayevaBrooklyn, NY 112091184941213
  2. Hamid Jack Moallem, M.D.Brooklyn, NY 112031013992494
  3. Won Baik-Han, M.D.Flushing, NY 113551538230099
  4. James Fagin, MDLake Success, NY 110421447344577
  5. Vincent Bonagura, MDGreat Neck, NY 110211568556629
  6. Blanka Kaplan, MDGreat Neck, NY 110211184795270
  7. Sheila Natbony, DONorth Babylon, NY 117031033163969
  8. Kalpana Patel, M.D.Bayport, NY 117051225070303

Common questions

What is Michael G. Marcus, MD's NPI number?

Michael G. Marcus, MD's National Provider Identifier (NPI) is 1134114192, issued on Sep 15, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Michael G. Marcus, MD located?

The NPPES record lists a practice address at 948 48TH St, Brooklyn, NY, 11219. Phone: (718) 283-8260. Providers update this record themselves, so call before visiting.

How can I verify Michael G. Marcus, MD's license?

NPPES lists New York license number 148903, 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 Michael G. Marcus, MD prescribe under Medicare Part D?

In 2024, Michael G. Marcus, MD had 90 Medicare Part D claims for 12 beneficiaries; the average among pediatric allergy/immunology physician prescribers was 259. Part D covers Medicare prescriptions only.

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.