Robert M. Siwiec, M.D.

Primary specialty

Gastroenterology PhysicianTaxonomy code 207RG0100X

License

01070921A Issued in IN

Practice address

11725 Illinois St Ste 275
Carmel, IN 46032-3009

Phone

(317) 944-0980

Fax

(317) 968-1348

NPI assigned

Aug 4, 2008

Sex

Male

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Other identifiers 3

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in IN

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

Specialty

GastroenterologyAlso: Internal Medicine

Education

Other, 2006

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Iu Health Medical Group LLCGroup PAC ID 9638617913, 4,382 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Indiana University Health Hospital, Indianapolis, IN, CCN 150056
• Indiana University Health North Hospital Hospital, Carmel, IN, CCN 150161

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: rsiwiec16112@direct.eskenazihealth.edu
• Direct secure messaging: rsiwiec@direct.iuhealth.org

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.

• Iu Health Medical Group, LLC

  • General Practice Physician
  • Indianapolis, IN
  • NPI 1326893777
  Medicare reassignment Care Compare group NPD
• University Medical Diagnostic Associates, Inc.

  • Internal Medicine Physician
  • Indianapolis, IN
  • NPI 1861441537
  Medicare reassignment NPD
• Major Hospital

  • General Acute Care Hospital
  • Shelbyville, IN
  • NPI 1174555692
  NPD (past)

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

• Indiana University Health North Hospital Inc

  • General Acute Care Hospital
  • Carmel, IN
  • NPI 1568492916
  Care Compare affiliation Name & address match
• Indiana University Health Inc

  • General Acute Care Hospital
  • Indianapolis, IN
  • NPI 1144266024
  Care Compare affiliation

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

{
    "created_epoch": "1217808000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1741651200000",
    "number": "1184880676",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "250 N SHADELAND AVE",
            "address_2": "STE 130 PROVIDER ENROLLMENT",
            "city": "INDIANAPOLIS",
            "state": "IN",
            "postal_code": "462194959"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "11725 ILLINOIS ST STE 275",
            "city": "CARMEL",
            "state": "IN",
            "postal_code": "460323009",
            "telephone_number": "317-944-0980",
            "fax_number": "317-968-1348"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1701 N Senate Blvd",
            "address_purpose": "LOCATION",
            "city": "Indianapolis",
            "state": "IN",
            "postal_code": "462021239",
            "country_code": "US",
            "telephone_number": "888-484-3258",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SIWIEC",
        "first_name": "ROBERT",
        "middle_name": "M.",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2008-08-04",
        "last_updated": "2025-03-11",
        "certification_date": "2025-03-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "IL",
            "license": "036122288",
            "primary": false
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "WI",
            "license": "5272620",
            "primary": false
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "IN",
            "license": "01070921A",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "ANTHEM",
            "identifier": "000000775536",
            "state": "IN"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "RAILROAD MEDICARE",
            "identifier": "P01163479",
            "state": "IN"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "201059780",
            "state": "IN"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "RSIWIEC@direct.iuhealth.org",
            "affiliation": "N",
            "address_1": "11725 Illinois St Ste 275",
            "city": "Carmel",
            "state": "IN",
            "country_code": "US",
            "postal_code": "460323009",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Siri Enterprises LLC
• Teresa Sites, PHD
• Caroline A Sitzman, PA-C
• Jaishna Sivakumar
• Anita Sivam, D.O.
• Barbara Katherine Siwy, M.D.
• Alta M. Skelton, N.P.
• Stacey Skillman, COTA
• Skills for Life Behavioral Services, LLC
• Blair Michael Skinner, MD

• Gastroenterology Physician in Carmel, IN
• Providers in Carmel, IN by specialty
• Gastroenterology Physician in Indiana

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 11, 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.