Omar Hesham Gayar, M.D.
Radiation Oncology Physician · Flint, MI
Omar Hesham Gayar, M.D. is a radiation oncology physician with a practice address in Flint, Michigan, and NPI 1083903256, issued on Mar 28, 2011. Check the license (Michigan 4301098218, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Omar Hesham Gayar
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 4301098218 MI
Self-reported in NPPES; status is on the state search - Practice location
- 4100 Beecher RD Ste A, Flint, MI 48532
- Phone
- (810) 342-3800
- Enumerated
- Mar 28, 2011
- Record last updated
- Oct 18, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (810) 342-3784
- Medicare enrollment
- Enrolled (PECOS I20160608001331); accepts Medicare assignment
- Medical or professional school
- University Of Kansas School Of Med (Kc/Wich/Sal), 2011
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 239 in Michigan → Look up another NPI →
Also registered at 4100 Beecher RD Ste A
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Hani Al Halabi, MDCMRadiation Oncology Physician1619315264
- Nykea Ellison, NP-CFamily Nurse Practitioner1770122699
- Ronda McGuireNurse Practitioner1508288994
- Haley Reulbach, NPNurse Practitioner1306594023
- Brooke Spencer, MDRadiation Oncology Physician1215149117
- Brian Yeh, M.D.Radiation Oncology Physician1265762777
Verify Omar Hesham Gayar in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301098218Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
43% fewer Medicare Part D claims than the average radiation oncology physician in 2024
76 Medicare Part D claims for 49 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.
Most prescribed
- Tamsulosin Hcl16 claims
- Dexamethasone14 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.
Bills Medicare through one group practice
- Hesham E Gayar MD PCFlint, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Omar Hesham Gayar among 239 radiation oncology physician records in Michigan
Omar Hesham Gayar, M.D. is one of 239 radiation oncology physician records with a practice address in Michigan. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 62% of them.
- NPI issued2011 · 62% of these records are older, 33% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2011 · median 2005 among the 172 with a school on file
- Record last updated2016 · 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 2085R0001X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in Michigan
There are 239 radiation oncology physician records in Michigan.
All 239 in Michigan → Every provider in Flint → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Hani Al Halabi, MDCMFlint, MI 485321619315264
- Hesham Gayar, M.D.Flint, MI 485321962402370
- Jack Nettleton, M.D.Flint, MI 485321174523575
- Brooke Spencer, MDFlint, MI 485321215149117
- Brian Yeh, M.D.Flint, MI 485321265762777
- Haesook Kim, MDFlint, MI 485031710941109
- Paul Kocheril, MDFlint, MI 485031548298375
- Dong Whan Oh, MDFlint, MI 485031033173935
Common questions
What is Omar Hesham Gayar, M.D.'s NPI number?
Omar Hesham Gayar, M.D.'s National Provider Identifier (NPI) is 1083903256, issued on Mar 28, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Omar Hesham Gayar, M.D. located?
The NPPES record lists a practice address at 4100 Beecher RD Ste A, Flint, MI, 48532. Phone: (810) 342-3800. Providers update this record themselves, so call before visiting.
How can I verify Omar Hesham Gayar, M.D.'s license?
NPPES lists Michigan license number 4301098218, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Omar Hesham Gayar, M.D. prescribe under Medicare Part D?
In 2024, Omar Hesham Gayar, M.D. had 76 Medicare Part D claims for 49 beneficiaries; the average among radiation oncology physician prescribers was 134. 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.