Raymon Najib Zaya, MD
Internal Medicine Physician · Niles, IL
Raymon Najib Zaya, MD is an internal medicine physician with a practice address in Niles, Illinois, and NPI 1467943308, issued on May 26, 2018. Check the license (Illinois 036156874, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Raymon Najib Zaya
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 036156874 IL
125.072366 IL
Self-reported in NPPES; status is on the state search - Practice location
- 6450 W. Touhy Ave. 2ND Floor, Niles, IL 60714
- Phone
- (773) 631-2223
- Enumerated
- May 26, 2018
- Record last updated
- Apr 3, 2025
- Fax
- (773) 631-5607
- Medicare enrollment
- Enrolled (PECOS I20210930002469); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Verify Raymon Najib Zaya 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 036156874Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
29% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,251 Medicare Part D claims for 303 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 19 claims were for opioids.
Most prescribed
- Atorvastatin Calcium342 claims
- Amlodipine Besylate158 claims
- Lisinopril91 claims
- Carvedilol73 claims
- Losartan Potassium71 claims
- Metformin Hcl70 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 2 group practices
- Endeavor Health Medical GroupEvanston, IL
- Rush University Medical GroupOak Park, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Raymon Najib Zaya among 7,238 internal medicine physician records in Illinois
Raymon Najib Zaya, MD is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 66% of them.
- NPI issued2018 · 66% of these records are older, 32% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2009 · median 2003 among the 3,580 with a school on file
- Record last updated2025 · 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 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
21 internal medicine physician records list a practice address in Niles
They are 21 of the 589 NPPES records with a practice address in Niles, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Niles → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Gail Herman, M.D.Niles, IL 607141457301871
- Bruce Hertz, MDNiles, IL 607141124092259
- Shilpa Joglekar, M.D.Niles, IL 607141225087174
- Thomas Kannin, MDNiles, IL 607141235132952
- Indira Nair, M.D., S.C.Niles, IL 607141306880455
- Kyong Oh, M.D.Niles, IL 607141144253048
- John Oh, M.D.Niles, IL 607141992730725
- Camelia Pop, M.D.Niles, IL 607141396853230
Common questions
What is Raymon Najib Zaya, MD's NPI number?
Raymon Najib Zaya, MD's National Provider Identifier (NPI) is 1467943308, issued on May 26, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Raymon Najib Zaya, MD located?
The NPPES record lists a practice address at 6450 W. Touhy Ave. 2ND Floor, Niles, IL, 60714. Phone: (773) 631-2223. Providers update this record themselves, so call before visiting.
How can I verify Raymon Najib Zaya, MD's license?
NPPES lists Illinois license number 036156874, 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 Raymon Najib Zaya, MD prescribe under Medicare Part D?
In 2024, Raymon Najib Zaya, MD had 2,251 Medicare Part D claims for 303 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.