Jennifer U. Obasi, MD
Hematology & Oncology Physician · Carterville, IL
Jennifer U. Obasi, MD is a hematology & oncology physician with a practice address in Carterville, Illinois, and NPI 1710341599, issued on Apr 7, 2016. Check the license (Illinois 036175296, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Jennifer U. Obasi
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License numbers
- 036175296 IL
ME169014 FL
69071-20 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1400 Pin Oak Dr, Carterville, IL 62918
- Phone
- (618) 985-3333
- Enumerated
- Apr 7, 2016
- Record last updated
- Oct 1, 2025
- Fax
- (618) 985-1318
- Medicare enrollment
- Enrolled (PECOS I20250820001527); accepts Medicare assignment
- Medical or professional school
- Michigan State University College Of Human Medicine, 2015
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 666 in Illinois → Look up another NPI →
Also registered at 1400 Pin Oak Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Zahra Alsultan, MDHospice and Palliative Medicine (Internal Medicine) Physician1952893778
- Brenda Carter, MSW, LCSWClinical Social Worker1598790180
- Mary Chapman, NPNurse Practitioner1386960151
- Lakshmi Manogna Chintalacheruvu, MDHematology & Oncology Physician1417330283
- John Clement, MDHematology & Oncology Physician1629188602
- Tara Hartley, LCSWClinical Social Worker1639718612
Verify Jennifer U. Obasi 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 036175296Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
62 Medicare Part D claims for 26 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D.
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: $433.02
5 payments; by number, the most common kind was education; the largest payer was Astellas Pharma US Inc. The 8,560 providers of this specialty with any payment received $7,481.41 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
- Southern Illinois Medical Services NfpCarterville, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jennifer U. Obasi among 666 hematology & oncology physician records in Illinois
Jennifer U. Obasi, MD is one of 666 hematology & oncology physician records with a practice address in Illinois. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 76% of them.
- NPI issued2016 · 76% of these records are older, 20% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2015 · median 2003 among the 461 with a school on file
- Record last updated2025 · 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 207RH0003X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
5 hematology & oncology physician records list a practice address in Carterville
They are 5 of the 203 NPPES records with a practice address in Carterville, and 666 hematology & oncology physician records in Illinois.
All 666 in Illinois → Every provider in Carterville → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Lakshmi Manogna Chintalacheruvu, MDCarterville, IL 629181417330283
- John Clement, MDCarterville, IL 629181629188602
- Ibrahim Omore, M.DCarterville, IL 629181245896034
- Muhammad PopalzaiCarterville, IL 629181003051871
- Alberto Cuartas, M.D.Marion, IL 629591740381169
- Yagnesh Oza, M.D.Mount Vernon, IL 628641912984766
- Hammad Shafqat, MDMount Vernon, IL 628641093070302
- Gibran Mahmud, M.D.Centralia, IL 628011518132489
Common questions
What is Jennifer U. Obasi, MD's NPI number?
Jennifer U. Obasi, MD's National Provider Identifier (NPI) is 1710341599, issued on Apr 7, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Jennifer U. Obasi, MD located?
The NPPES record lists a practice address at 1400 Pin Oak Dr, Carterville, IL, 62918. Phone: (618) 985-3333. Providers update this record themselves, so call before visiting.
How can I verify Jennifer U. Obasi, MD's license?
NPPES lists Illinois license number 036175296, 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 Jennifer U. Obasi, MD prescribe under Medicare Part D?
In 2024, Jennifer U. Obasi, MD had 62 Medicare Part D claims for 26 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.