Samuel Y. Tesfay, M.D.
Gastroenterology Physician · Chicago, IL
Samuel Y. Tesfay, M.D. is a gastroenterology physician with a practice address in Chicago, Illinois, and NPI 1811196553, issued on Jul 12, 2007. Check the license (Illinois 36111625, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Samuel Y. Tesfay
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 36111625 IL
Self-reported in NPPES; status is on the state search - Practice location
- 850 N State St, Chicago, IL 60610
- Phone
- (312) 335-1609
- Enumerated
- Jul 12, 2007
- Record last updated
- Feb 11, 2022
- Medicare enrollment
- Enrolled (PECOS I20150320000011); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 2001
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 887 in Illinois → Look up another NPI →
Also registered at 850 N State St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Vasilikitsa Antonopoulos, M.A., CCC-SLPSpeech-Language Pathologist1548219454
Verify Samuel Y. Tesfay 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 36111625Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
26% more Medicare Part D claims than the average gastroenterology physician in 2024
1,024 Medicare Part D claims for 418 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims. 11 claims were for opioids.
Most prescribed
- Gavilyte-C309 claims
- Mesalamine65 claims
- Xifaxan42 claims
- Azathioprine36 claims
- Lubiprostone36 claims
- Pantoprazole Sodium30 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
- Permanente Medical Group IncWalnut Creek, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Samuel Y. Tesfay among 887 gastroenterology physician records in Illinois
Samuel Y. Tesfay, M.D. is one of 887 gastroenterology physician records with a practice address in Illinois. 85% 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 48% of them.
- NPI issued2007 · 48% of these records are older, 45% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2001 · median 2003 among the 643 with a school on file
- Record last updated2022 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Illinois
There are 887 gastroenterology physician records in Illinois.
All 887 in Illinois → Every provider in Chicago → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Greg Cohen, M.D.Chicago, IL 606111669447348
- Maria Ferreira, MDChicago, IL 606111194755421
- Robin Fintel, M.D.Chicago, IL 606111023083250
- Melvin Goldstein, M.D.Chicago, IL 606111376531400
- Nirmala Gonsalves, MDChicago, IL 606111326038712
- Richard Green, MDChicago, IL 606111770511404
- Joseph Karacic, MDChicago, IL 606111992798417
- Kiran Nimmagadda, MDChicago, IL 606111720071293
Common questions
What is Samuel Y. Tesfay, M.D.'s NPI number?
Samuel Y. Tesfay, M.D.'s National Provider Identifier (NPI) is 1811196553, issued on Jul 12, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Samuel Y. Tesfay, M.D. located?
The NPPES record lists a practice address at 850 N State St, Chicago, IL, 60610. Phone: (312) 335-1609. Providers update this record themselves, so call before visiting.
How can I verify Samuel Y. Tesfay, M.D.'s license?
NPPES lists Illinois license number 36111625, 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 Samuel Y. Tesfay, M.D. prescribe under Medicare Part D?
In 2024, Samuel Y. Tesfay, M.D. had 1,024 Medicare Part D claims for 418 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.