Stephen J. Chernaik, MD
Psychiatry Physician · Evanston, IL
Stephen J. Chernaik, MD is a psychiatry physician with a practice address in Evanston, Illinois, and NPI 1184644775, issued on Jul 19, 2006. Check the license (Illinois 036045816, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Stephen J. Chernaik
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 036045816 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2650 Ridge Ave, Evanston, IL 60201
- Phone
- (847) 570-2841
- Enumerated
- Jul 19, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (847) 570-2939
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 2,147 in Illinois → Look up another NPI →
Also registered at 2650 Ridge Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Mary Adams, MDPediatrics Physician1134201205
- Isaac Agboola, MDEmergency Medicine Physician1073018289
Verify Stephen J. Chernaik 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 036045816Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average psychiatry physician in 2024
48 Medicare Part D claims for 14 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Stephen J. Chernaik among 2,147 psychiatry physician records in Illinois
Stephen J. Chernaik, MD is one of 2,147 psychiatry physician records with a practice address in Illinois. 69% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 65% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileNo · 41% of these records are
- Record last updated2007 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
48 psychiatry physician records list a practice address in Evanston
They are 48 of the 4,013 NPPES records with a practice address in Evanston, and 2,147 psychiatry physician records in Illinois.
All 2,147 in Illinois → Every provider in Evanston → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- David Cella, PHDEvanston, IL 602011922118983
- Scott Feldman, MDEvanston, IL 602011407940166
- Daniel Giacomo, MDEvanston, IL 602011215957568
- Carin Gordon, M.D.Evanston, IL 602011942388681
- Jacqueline Haimes, MDEvanston, IL 602011518053826
- John Halderman, MDEvanston, IL 602011942279179
- Ella Komarovsky, M.D.Evanston, IL 602011912907247
- Frederick Miller, MDEvanston, IL 602011780604041
Common questions
What is Stephen J. Chernaik, MD's NPI number?
Stephen J. Chernaik, MD's National Provider Identifier (NPI) is 1184644775, issued on Jul 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stephen J. Chernaik, MD located?
The NPPES record lists a practice address at 2650 Ridge Ave, Evanston, IL, 60201. Phone: (847) 570-2841. Providers update this record themselves, so call before visiting.
How can I verify Stephen J. Chernaik, MD's license?
NPPES lists Illinois license number 036045816, 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 Stephen J. Chernaik, MD prescribe under Medicare Part D?
In 2024, Stephen J. Chernaik, MD had 48 Medicare Part D claims for 14 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.