JENNIFER U OBASI MD
NPI 1710341599
Internal Medicine - Hematology & Oncology in Carterville, IL

Active since April 07, 2016PECOS EnrolledAccepts Medicare Assignment
1400 PIN OAK DR, CARTERVILLE, IL 62918(618) 985-3333(618) 985-1318 Get Directions Write a Review

NPPES record last updated: October 1, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jun 17, 2025, Jul 26, 2024, Jun 6, 2024 and 1 more (4 updates tracked since 2019).

About Jennifer U Obasi Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JENNIFER U OBASI MD (NPI 1710341599) is an individual hematology & oncology provider in Carterville, Illinois, licensed in Illinois (036175296) and active in the NPI registry since April 2016. She is enrolled in Medicare PECOS, is affiliated with Herrin Hospital, and maintains a secondary practice location in Gainesville.

NPPES Registry Identity

NPI1710341599
Entity TypeIndividualFemale
Primary Taxonomy207RH0003X
Provider Legal NameJENNIFER U OBASICredential: MD
Location Address1400 PIN OAK DRCarterville, IL 62918-1600
Mailing AddressPo Box 3988Carbondale, IL 62902-3988 · (618) 457-5200
Fax(618) 985-1318
Sole ProprietorNo
Medical School CMSMichigan State University College Of Human MedicineGraduated 2015
Enumeration DateApril 7, 2016
Last NPPES UpdateOctober 1, 20254 updates tracked since enumeration
NPPES CertifiedOctober 1, 2025
NPI 1710341599 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
Licenses Licensed in IL · 036175296 Licensed in WI · 69071-20
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
Also ListedInternal Medicine · Medical OncologyTaxonomy 207RX0202X · License ME169014 (FL)
1400 PIN OAK DR, Carterville, IL 62918

Secondary Practice Location 1

Location 11505 SW Archer RdGainesville, FL 32608-1134 · Phone (352) 273-9000

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Jennifer U Obasi Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1658613989
PECOS Enrollment IDI20250820001527
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare 4

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Herrin Hospital

Acute Care Hospitals · Herrin, IL
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140011
Location201 S 14th StHerrin, IL 62948 · Williamson County
Emergency services

Memorial Hospital Of Carbondale

Acute Care Hospitals · Carbondale, IL
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140164
Location405 W JacksonCarbondale, IL 62901 · Jackson County
Emergency services Birthing friendly

Harrisburg Medical Center

Acute Care Hospitals · Harrisburg, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number140210
Location100 Doctor Warren Tuttle DrHarrisburg, IL 62946 · Saline County
Emergency services

St Joseph Memorial Hospital

Critical Access Hospitals · Murphysboro, IL
OwnershipVoluntary non-profit - Private
CMS Certification Number141334
Location2 South Hospital DriveMurphysboro, IL 62966 · Jackson County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 62918 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$168.44 typical visit price
range $54.80 – $168.44
Typical copayment $42.11 (range $13.70 – $42.11)
Most-billed visit code 99205
Established Patient
$97.25 typical visit price
range $17.16 – $136.56
Typical copayment $24.31 (range $4.29 – $34.14)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 13

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Internal Medicine (Hematology & Oncology)
1400 PIN OAK DR
CARTERVILLE, IL 62918
Nurse Practitioner
1400 PIN OAK DR
CARTERVILLE, IL 62918
Internal Medicine (Hematology & Oncology)
1400 PIN OAK DR
CARTERVILLE, IL 62918
Radiology (Radiation Oncology)
1400 PIN OAK DR
CARTERVILLE, IL 62918
Family Medicine (Hospice and Palliative Medicine)
1400 PIN OAK DR
CARTERVILLE, IL 62918
Physician Assistant
1400 PIN OAK DR
CARTERVILLE, IL 62918
Social Worker (Clinical)
1400 PIN OAK DR
CARTERVILLE, IL 62918
Internal Medicine (Hematology & Oncology)
1400 PIN OAK DR
CARTERVILLE, IL 62918

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Jennifer Obasi's NPI number?

The NPI number for Jennifer Obasi is 1710341599. It was assigned to this individual provider in the NPPES registry on April 7, 2016.

Where is Jennifer Obasi located?

Jennifer Obasi practices at 1400 Pin Oak Dr, Carterville, IL 62918. The listed phone number is (618) 985-3333.

What is Jennifer Obasi's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Jennifer Obasi enrolled in Medicare?

Yes. Jennifer Obasi is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Jennifer Obasi affiliated with any hospitals?

According to CMS data, Jennifer Obasi is affiliated with Herrin Hospital, Memorial Hospital Of Carbondale, Harrisburg Medical Center and St Joseph Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Jennifer Obasi was last updated on October 1, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.