NPPES file of Aug 9, 2026

Esmael Mayar, MD

Emergency Medicine Physician · Oak Lawn, IL

Esmael Mayar, MD is an emergency medicine physician with a practice address in Oak Lawn, Illinois, and NPI 1215497326, issued on Mar 23, 2019. Check the license (Illinois 036.157417, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; 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
1215497326
Name
Esmael Mayar
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License numbers
036.157417 IL
01086989A IN
Self-reported in NPPES; status is on the state search
Practice location
4440 W 95TH St, Oak Lawn, IL 60453
Phone
(708) 684-5354
Enumerated
Mar 23, 2019
Record last updated
Jun 19, 2024
Medicare enrollment
Enrolled (PECOS I20230118000259); accepts Medicare assignment
Medical or professional school
University Of South Carolina School Of Medicine, Greenville, 2019
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 4440 W 95TH St

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

  1. Nadia Abdessalam, FNP-BCFamily Nurse Practitioner1356888283
  2. Akram Abdoue, M.D.Anesthesiology Physician1992752489
  3. Ahmad Abdulla, MDEmergency Medicine Physician1467202556
  4. Joseph Abraham, CRNACertified Registered Nurse Anesthetist1831653401
  5. Katherine Absalon, MOT, OTR/LOccupational Therapist1457753436
  6. Tassneem Abu-Rezeq, DNP, APRN, CPNP-ACPediatric Nurse Practitioner1831904663

Verify Esmael Mayar in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036.157417
    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 Illinois 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.

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31% fewer Medicare Part D claims than the average emergency medicine physician in 2024

156 Medicare Part D claims for 95 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 18 claims were for opioids.

  1. Esmael Mayar156
  2. Specialty average226

Most prescribed

  1. Cephalexin19 claims
  2. Ondansetron Odt14 claims
  3. Hydrocodone-Acetaminophen12 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: $92.82

1 payment: food and beverage; the largest payer was AngioDynamics, Inc. The 12,335 providers of this specialty with any payment received $953.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Esmael Mayar$92.82
  2. Specialty average$953.79

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. Loyola University Medical CenterMaywood, IL · Acute Care Hospitals2 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.

Esmael Mayar among 3,291 emergency medicine physician records in Illinois

Esmael Mayar, MD is one of 3,291 emergency medicine physician records with a practice address in Illinois. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 74% of them.

  • NPI issued2019 · 74% of these records are older, 22% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2019 · median 2012 among the 1,867 with a school on file
  • Record last updated2024 · 47% 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 Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

163 emergency medicine physician records list a practice address in Oak Lawn

They are 163 of the 2,993 NPPES records with a practice address in Oak Lawn, and 3,291 emergency medicine physician records in Illinois.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. R. Altman, M.D.Oak Lawn, IL 604531285640862
  2. Adele Cobbs, M.D.Oak Lawn, IL 604531295750669
  3. Steve Delis, MDOak Lawn, IL 604531720095920
  4. Mila Felder, M.D., M.S.Oak Lawn, IL 604531265440929
  5. Shayla Garrett-Hauser, MDOak Lawn, IL 604531457368896
  6. Robert Harwood, M.D.Oak Lawn, IL 604531194733220
  7. Abhishek Katiyar, M.D.Oak Lawn, IL 604531346219565
  8. Anna Kiernicki Sklar, MDOak Lawn, IL 604531467447920

Common questions

What is Esmael Mayar, MD's NPI number?

Esmael Mayar, MD's National Provider Identifier (NPI) is 1215497326, issued on Mar 23, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Esmael Mayar, MD located?

The NPPES record lists a practice address at 4440 W 95TH St, Oak Lawn, IL, 60453. Phone: (708) 684-5354. Providers update this record themselves, so call before visiting.

How can I verify Esmael Mayar, MD's license?

NPPES lists Illinois license number 036.157417, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Esmael Mayar, MD prescribe under Medicare Part D?

In 2024, Esmael Mayar, MD had 156 Medicare Part D claims for 95 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.