William James Popovic, MD

Primary specialty

Medical Oncology PhysicianTaxonomy code 207RX0202X

License

036060456 Issued in IL

Practice address

1418 Cross St
Div Im Medical Oncology, Ste 180
Shiloh, IL 62269-2914

Phone

(618) 607-1340

Fax

(618) 622-9724

NPI assigned

May 4, 2006

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 1

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in IL

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 1

Merit-based Incentive Payment System (MIPS)

Final score

88.01 of 100Reported as group

Quality

76.14

Promoting interoperability

99

Improvement activities

40

Cost

76.43

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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.

• Washington University Physicians in Illinois, Inc

  • Multi-Specialty Clinic/Center
  • O Fallon, IL
  • NPI 1477076263
  Medicare reassignment NPD
• Washington University Physicians in Illinois, Inc.

  • Multi-Specialty Clinic/Center
  • Shiloh, IL
  • NPI 1700374105
  NPD
• Washington University Physicians in Illinois, Inc

  • Multi-Specialty Clinic/Center
  • Saint Louis, MO
  • NPI 1457203135
  NPD

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

{
    "created_epoch": "1146700800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1745193600000",
    "number": "1609824549",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 7412011",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606742011",
            "telephone_number": "618-607-1340",
            "fax_number": "618-622-9724"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1418 CROSS ST",
            "address_2": "DIV IM MEDICAL ONCOLOGY, STE 180",
            "city": "SHILOH",
            "state": "IL",
            "postal_code": "622692914",
            "telephone_number": "618-607-1340",
            "fax_number": "618-622-9724"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "POPOVIC",
        "first_name": "WILLIAM",
        "middle_name": "JAMES",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-05-04",
        "last_updated": "2025-04-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "IL",
            "license": "036060456",
            "primary": false
        },
        {
            "code": "207RX0202X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Medical Oncology",
            "state": "IL",
            "license": "036060456",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "200058084",
            "state": "MO"
        }
    ],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2/",
            "affiliation": "Y",
            "affiliationName": "Washington University",
            "address_1": "1418 Cross St",
            "address_2": "Div IM Medical Oncology, Ste 180",
            "city": "Shiloh",
            "state": "IL",
            "country_code": "US",
            "postal_code": "622692914",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Kirsten Page
• PC Associates, LLC
• Sarah Perrin, PTA
• Shawna Jade Perry, DMD
• Jaclyn N Pickowitz, LCPC
• Prorehab PC
• Protestant Memorial Medical Center, Inc.
• Michael Norman Pulsipher, DO
• Karla Jayne Ragsdale, LCPC
• Amy Louise Redmer, MD

• Medical Oncology Physician in Shiloh, IL
• Providers in Shiloh, IL by specialty
• Medical Oncology Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 21, 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.