Mayer Zayan, M.D.
Internal Medicine Physician · Northbrook, IL
Mayer Zayan, M.D. is an internal medicine physician with a practice address in Northbrook, Illinois, and NPI 1619064151, issued on Oct 6, 2006. Check the license (Illinois 036060803, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Mayer Zayan
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036060803 IL
Self-reported in NPPES; status is on the state search - Practice location
- 3605 Woodhead Dr Ste 111, Northbrook, IL 60062
- Phone
- (800) 564-5270
- Enumerated
- Oct 6, 2006
- Record last updated
- Aug 23, 2022
- Fax
- (877) 432-7816
- Medicaid IDs
- 036060803 IL
1619064151 IL - Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Verify Mayer Zayan 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 036060803Check 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% more Medicare Part D claims than the average internal medicine physician in 2024
4,664 Medicare Part D claims for 142 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 89 claims were for opioids.
Most prescribed
- Atorvastatin Calcium237 claims
- Metoprolol Succinate195 claims
- Amlodipine Besylate172 claims
- Metoprolol Tartrate166 claims
- Omeprazole163 claims
- Lisinopril131 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.
Mayer Zayan among 7,238 internal medicine physician records in Illinois
Mayer Zayan, M.D. 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 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 61% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2022 · 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).
26 internal medicine physician records list a practice address in Northbrook
They are 26 of the 2,226 NPPES records with a practice address in Northbrook, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Northbrook → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Nadeem Akhter, M.D.Northbrook, IL 600621235176074
- Lynne Belsky, MDNorthbrook, IL 600621265499438
- Gene Chiao, MDNorthbrook, IL 600621699733188
- Boris Gurevich, M.D.Northbrook, IL 600621902877129
- Richard Katz, MDNorthbrook, IL 600621205924230
- Cori Levinson, M.D.Northbrook, IL 600621356385389
- Meena Malhotra, MDNorthbrook, IL 600621821191958
- Richard Miller, M.D.Northbrook, IL 600621811933195
Common questions
What is Mayer Zayan, M.D.'s NPI number?
Mayer Zayan, M.D.'s National Provider Identifier (NPI) is 1619064151, issued on Oct 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mayer Zayan, M.D. located?
The NPPES record lists a practice address at 3605 Woodhead Dr Ste 111, Northbrook, IL, 60062. Phone: (800) 564-5270. Providers update this record themselves, so call before visiting.
How can I verify Mayer Zayan, M.D.'s license?
NPPES lists Illinois license number 036060803, 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 Mayer Zayan, M.D. prescribe under Medicare Part D?
In 2024, Mayer Zayan, M.D. had 4,664 Medicare Part D claims for 142 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.