Mark Grbic, M.D.
Emergency Medicine Physician · Brooklyn, NY
Mark Grbic, M.D. is an emergency medicine physician with a practice address in Brooklyn, New York, and NPI 1962853309, issued on Jun 27, 2016. Check the license (New York 297764, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Mark Grbic
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 297764 NY
Self-reported in NPPES; status is on the state search - Practice location
- 506 6TH St, Brooklyn, NY 11215
- Phone
- (516) 448-4473
- Enumerated
- Jun 27, 2016
- Record last updated
- Jan 8, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20191030001737); accepts Medicare assignment
- Medical or professional school
- Columbia University College Of Physicians And Surgeons, 2016
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 5,025 in New York → Look up another NPI →
Also registered at 506 6TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Danielle Abadi, MDPediatrics Physician1003298993
- Haley Abbott, DDSStudent in an Organized Health Care Education/Training Program1568313161
- Jacob Abraham, MDStudent in an Organized Health Care Education/Training Program1043009665
- Maria Abraham, M.D.Pediatrics Physician1184039463
- Alexander Abramov, PA-CPhysician Assistant1487339511
- Eric Abrams, M.D.Emergency Medicine Physician1851737340
Verify Mark Grbic in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 297764Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
46% fewer Medicare Part D claims than the average emergency medicine physician in 2024
122 Medicare Part D claims for 78 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Ibuprofen30 claims
- Cyclobenzaprine Hcl17 claims
- Ondansetron Odt11 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): 100 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.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Trustees OF Columbia University IN The City OF New YorkNew York, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Grbic among 5,025 emergency medicine physician records in New York
Mark Grbic, M.D. is one of 5,025 emergency medicine physician records with a practice address in New York. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 67% of them.
- NPI issued2016 · 67% of these records are older, 29% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2016 · median 2013 among the 3,232 with a school on file
- Record last updated2021 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
719 emergency medicine physician records list a practice address in Brooklyn
They are 719 of the 64,057 NPPES records with a practice address in Brooklyn, and 5,025 emergency medicine physician records in New York.
All 5,025 in New York → Every provider in Brooklyn → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Robert Birkhahn, MDBrooklyn, NY 112151366497455
- Joseph Bove, MDBrooklyn, NY 112151679528624
- Michael Cabezon, MDBrooklyn, NY 112151306893367
- Mahmoud Eid, MDBrooklyn, NY 112151508968561
- Theodore Gaeta, DOBrooklyn, NY 112151932142213
- Amy Lazarides, MDBrooklyn, NY 112151538116546
- Paul Leo, MDBrooklyn, NY 112151740226422
- Olivia Lopez, MDBrooklyn, NY 112151780624866
Common questions
What is Mark Grbic, M.D.'s NPI number?
Mark Grbic, M.D.'s National Provider Identifier (NPI) is 1962853309, issued on Jun 27, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Mark Grbic, M.D. located?
The NPPES record lists a practice address at 506 6TH St, Brooklyn, NY, 11215. Phone: (516) 448-4473. Providers update this record themselves, so call before visiting.
How can I verify Mark Grbic, M.D.'s license?
NPPES lists New York license number 297764, 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 Grbic, M.D. prescribe under Medicare Part D?
In 2024, Mark Grbic, M.D. had 122 Medicare Part D claims for 78 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Mark Grbic, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 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.