Thomas O'Connor, M.D.
Gastroenterology Physician · Bourbonnais, IL
Thomas O'Connor, M.D. is a gastroenterology physician with a practice address in Bourbonnais, Illinois, and NPI 1760470033, issued on Oct 11, 2005. Check the license (Illinois 036097972, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Thomas O'Connor
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 036097972 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1615 N Convent St, Bourbonnais, IL 60914
- Phone
- (815) 937-5200
- Enumerated
- Oct 11, 2005
- Record last updated
- Jul 28, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20100206000258); accepts Medicare assignment
- Medical or professional school
- Northwestern University Feinberg Medical School, 1990
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 1615 N Convent St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nikhil Bhargava, DOGastroenterology Physician1568649382
- Syed Bokhari, M.D.Gastroenterology Physician1710984224
- Daniel Errampalli, M.D.Gastroenterology Physician1689662975
- Matthew Kaplan, DOGastroenterology Physician1285863308
- Brian Sasso, DOGastroenterology Physician1558460022
- David Sutherland, M.D.Gastroenterology Physician1619976909
Verify Thomas O'Connor 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 036097972Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.3 times the Medicare Part D claims of the average gastroenterology physician in 2024
1,854 Medicare Part D claims for 750 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Pantoprazole Sodium573 claims
- Sod Sulf-Potass Sulf-Mag Sulf217 claims
- Omeprazole212 claims
- Famotidine144 claims
- Sucralfate78 claims
- Esomeprazole Magnesium51 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.
Industry payments in 2024: $2,291.80
137 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Digestive Diseases Consultants OF Kankakee SCBourbonnais, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
9 gastroenterology physician records list a practice address in Bourbonnais
They are 9 of the 547 NPPES records with a practice address in Bourbonnais, and 887 gastroenterology physician records in Illinois.
All 9 in Bourbonnais → All 887 in Illinois → Every provider in Bourbonnais →
Other gastroenterology physician records in Illinois
- Abdul Aadam, M.D.Chicago, IL1013038744
- Richard Aaronson, M.D.Olympia Fields, IL1578520656
- Abdelhai Abdelqader, MDMaywood, IL1073931127
- Mustafa Abdul-Hussein, MDMattoon, IL1972759173
- Abdullah AbdussalamDes Plaines, IL1932442613
- Ayokunle Abegunde, M.D.Maywood, IL1194031435
- Majd Aboona, MDChicago, IL1386347789
- James Abraham, MDNaperville, IL1427276732
- Rana Abraham, M.D., M.S.Chicago, IL1437318516
- Frida Abrahamian, MDChicago, IL1447274279
Common questions
What is Thomas O'Connor, M.D.'s NPI number?
Thomas O'Connor, M.D.'s National Provider Identifier (NPI) is 1760470033, issued on Oct 11, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Thomas O'Connor, M.D. located?
The NPPES record lists a practice address at 1615 N Convent St, Bourbonnais, IL, 60914. Phone: (815) 937-5200. Providers update this record themselves, so call before visiting.
How can I verify Thomas O'Connor, M.D.'s license?
NPPES lists Illinois license number 036097972, 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 Thomas O'Connor, M.D. prescribe under Medicare Part D?
In 2024, Thomas O'Connor, M.D. had 1,854 Medicare Part D claims for 750 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.