Hythem R. Zayed, MD, MPH
Hospitalist Physician · Bolingbrook, IL
Hythem R. Zayed, MD, MPH is a hospitalist physician with a practice address in Bolingbrook, Illinois, and NPI 1225217748, issued on Nov 1, 2007. Check the license (Illinois 036120244, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Hythem R. Zayed
- Credential
- MD, MPH
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- 036120244 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1000 Remington Blvd, Bolingbrook, IL 60440
- Phone
- (630) 312-7755
- Enumerated
- Nov 1, 2007
- Record last updated
- Mar 6, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (630) 856-9933
- Medicare enrollment
- Enrolled (PECOS I20080805000303); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 1,535 in Illinois → Look up another NPI →
Also registered at 1000 Remington Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ali Bawamia, MDHospitalist Physician1073563581
- Matthew Bertini, MDHospitalist Physician1639463458
- Jennifer BoyerPhysician Assistant1265853246
- Helen Ferng, M.D.Internal Medicine Physician1033259205
- Vinay Huliyar, M.D.Hospitalist Physician1427343458
- Melissa Kelly, DOHospitalist Physician1104057843
Verify Hythem R. Zayed in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036120244Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
47% fewer Medicare Part D claims than the average hospitalist physician in 2024
276 Medicare Part D claims for 167 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 29 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen17 claims
- Metoprolol Tartrate15 claims
- Atorvastatin Calcium14 claims
- Metoprolol Succinate12 claims
- Prednisone12 claims
- Amoxicillin-Clavulanate Potass11 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
- Advance Inpatient Medicine LLCBolingbrook, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Hythem R. Zayed among 1,535 hospitalist physician records in Illinois
Hythem R. Zayed, MD, MPH is one of 1,535 hospitalist physician records with a practice address in Illinois. 92% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 12% of them.
- NPI issued2007 · 12% of these records are older, 81% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileYes · 87% of these records are
- Graduated2005 · median 2013 among the 1,339 with a school on file
- Record last updated2017 · 32% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
18 hospitalist physician records list a practice address in Bolingbrook
They are 18 of the 915 NPPES records with a practice address in Bolingbrook, and 1,535 hospitalist physician records in Illinois.
All 1,535 in Illinois → Every provider in Bolingbrook → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Ali Bawamia, MDBolingbrook, IL 604401073563581
- Matthew Bertini, MDBolingbrook, IL 604401639463458
- Gregory Goska, M.D.Bolingbrook, IL 604401376790071
- Melissa Kelly, DOBolingbrook, IL 604401104057843
- Muhamad Krad, M.D.Bolingbrook, IL 604401760622740
- Stephen LeeBolingbrook, IL 604401104868165
- Mushtaq Mohammed, M.D.Bolingbrook, IL 604401700828563
- Nicholas Moy, M.D.Bolingbrook, IL 604401659537421
Common questions
What is Hythem R. Zayed, MD, MPH's NPI number?
Hythem R. Zayed, MD, MPH's National Provider Identifier (NPI) is 1225217748, issued on Nov 1, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Hythem R. Zayed, MD, MPH located?
The NPPES record lists a practice address at 1000 Remington Blvd, Bolingbrook, IL, 60440. Phone: (630) 312-7755. Providers update this record themselves, so call before visiting.
How can I verify Hythem R. Zayed, MD, MPH's license?
NPPES lists Illinois license number 036120244, 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 Hythem R. Zayed, MD, MPH prescribe under Medicare Part D?
In 2024, Hythem R. Zayed, MD, MPH had 276 Medicare Part D claims for 167 beneficiaries; the average among hospitalist physician prescribers was 521. 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.