Jack D. Ohringer, MD
Gastroenterology Physician · Springfield, IL
Jack D. Ohringer, MD is a gastroenterology physician with a practice address in Springfield, Illinois, and NPI 1285658393, issued on Jul 26, 2006. Check the license (Illinois 217409, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Jack D. Ohringer
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 217409 IL
Self-reported in NPPES; status is on the state search - Practice location
- 315 W Carpenter St FL 1, Springfield, IL 62702
- Phone
- (217) 545-8000
- Enumerated
- Jul 26, 2006
- Record last updated
- Jan 22, 2026
- Medicaid ID
- 34479800 WI
- Medicare enrollment
- Enrolled (PECOS I20040601000050); accepts Medicare assignment
- Medical or professional school
- University Of Chicago, Pritzker School Of Medicine, 1982
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 315 W Carpenter St FL 1
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sharjeel Arshad, MDGastroenterology Physician1144636069
- Waqas AzharHematology & Oncology Physician1598172140
- Amanda ClouserRegistered Nurse1164087276
- Meghna Desai, MDHematology & Oncology Physician1609865294
- Ruchika Goel, MD, MPHPediatric Hematology & Oncology Physician1912160151
- Aubrey ParnellNurse Practitioner1093331530
Verify Jack D. Ohringer 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 217409Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
32% fewer Medicare Part D claims than the average gastroenterology physician in 2024
551 Medicare Part D claims for 227 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims.
Most prescribed
- Ondansetron Hcl142 claims
- Gavilyte-G77 claims
- Sod Sulf-Potass Sulf-Mag Sulf45 claims
- Omeprazole43 claims
- Pantoprazole Sodium40 claims
- Peg-3350 And Electrolytes35 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
- Aurora Medical Group, Inc.Kenosha, WI
- Siu Physicians And Surgeons IncSpringfield, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gastroenterology Physician providers in Illinois
There are 887 gastroenterology physician records in Illinois.
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 Jack D. Ohringer, MD's NPI number?
Jack D. Ohringer, MD's National Provider Identifier (NPI) is 1285658393, issued on Jul 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jack D. Ohringer, MD located?
The NPPES record lists a practice address at 315 W Carpenter St FL 1, Springfield, IL, 62702. Phone: (217) 545-8000. Providers update this record themselves, so call before visiting.
How can I verify Jack D. Ohringer, MD's license?
NPPES lists Illinois license number 217409, 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 Jack D. Ohringer, MD prescribe under Medicare Part D?
In 2024, Jack D. Ohringer, MD had 551 Medicare Part D claims for 227 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.