Jennifer U Obasi, MD

Primary specialty

Hematology & Oncology PhysicianTaxonomy code 207RH0003X

License

036175296 Issued in IL

Practice address

1400 Pin Oak Dr
Carterville, IL 62918-1600

Phone

(618) 985-3333

Fax

(618) 985-1318

NPI assigned

Apr 7, 2016

Sex

Female

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 3

Addresses

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in WI, IL2 enrollments

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 2

Specialty

Hematology/Oncology

Education

Michigan State University College of Human Medicine, 2015

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Southern Illinois Medical Services NFPGroup PAC ID 3678677390, 331 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Hospice of Southern Illinois, Inc Hospice, Belleville, IL, CCN 141504
• Memorial Hospital of Carbondale Hospital, Carbondale, IL, CCN 140164
• St Joseph Memorial Hospital Hospital, Murphysboro, IL, CCN 141334
• Herrin Hospital Hospital, Herrin, IL, CCN 140011
• Harrisburg Medical Center Hospital, Harrisburg, IL, CCN 140210

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Southern Illinois Medical Services, NFP

  • Internal Medicine Physician
  • Carbondale, IL
  • NPI 1770656837
  Medicare reassignment Care Compare group NPD
• Ascension Medical Group-Southeast Wisconsin Inc

  • Internal Medicine Physician
  • Glendale, WI
  • NPI 1609881077
  Medicare reassignment NPD

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Harrisburg Medical Center Inc

  • General Acute Care Hospital
  • Harrisburg, IL
  • NPI 1073580130
  Care Compare affiliation
• Hospice of Southern Illinois, Inc.

  • Community Based Hospice Care Agency
  • Belleville, IL
  • NPI 1720081805
  Care Compare affiliation
• Southern Illinois Hospital Services

  • General Acute Care Hospital
  • Carbondale, IL
  • NPI 1093801797
  Care Compare affiliation
• Southern Illinois Hospital Services

  • Critical Access Hospital
  • Murphysboro, IL
  • NPI 1356435135
  Care Compare affiliation
• Southern Illinois Hospital Services

  • General Acute Care Hospital
  • Herrin, IL
  • NPI 1528158573
  Care Compare affiliation

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1459987200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1759276800000",
    "number": "1710341599",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 3988",
            "city": "CARBONDALE",
            "state": "IL",
            "postal_code": "629023988",
            "telephone_number": "618-457-5200"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1400 PIN OAK DR",
            "city": "CARTERVILLE",
            "state": "IL",
            "postal_code": "629181600",
            "telephone_number": "618-985-3333",
            "fax_number": "618-985-1318"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1505 SW Archer Rd",
            "address_purpose": "LOCATION",
            "city": "Gainesville",
            "state": "FL",
            "postal_code": "326081134",
            "country_code": "US",
            "telephone_number": "352-273-9000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "OBASI",
        "first_name": "JENNIFER",
        "middle_name": "U",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2016-04-07",
        "last_updated": "2025-10-01",
        "certification_date": "2025-10-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "IL",
            "license": "036175296",
            "primary": true
        },
        {
            "code": "207RX0202X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Medical Oncology",
            "state": "FL",
            "license": "ME169014",
            "primary": false
        },
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "WI",
            "license": "69071-20",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "jobasi85025@sih.direct-ci.com",
            "affiliation": "N",
            "address_1": "1400 Pin Oak Dr",
            "city": "Carterville",
            "state": "IL",
            "country_code": "US",
            "postal_code": "629181600",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

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• Hematology & Oncology Physician in Carterville, IL
• Providers in Carterville, IL by specialty
• Hematology & Oncology Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 1, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.