Marc W Gerdisch, MD

Primary specialty

Thoracic Surgery (Cardiothoracic Vascular Surgery) PhysicianTaxonomy code 208G00000X

License

01048049A Issued in IN

Practice address

1701 N Senate Blvd
Indianapolis, IN 46202-1239

Phone

(317) 962-3256

NPI assigned

Apr 21, 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 4

Electronic endpoints 3

Medicare fee-for-service enrollment

Enrolled in IL, IN, IA3 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 3

Specialty

Thoracic Surgery

Education

Loyola University of Chicago, Stritch School of Medicine, 1987

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Cardiac Surgery Associates SCGroup PAC ID 2860304102, 44 clinicians

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

Practice addresses (Care Compare)

Hospital & facility affiliations

• Franciscan VNS Home Care, Inc Home health agency, Beech Grove, IN, CCN 157008
• Franciscan Health Indianapolis Hospital, Indianapolis, IN, CCN 150162
• Indiana University Health Hospital, Indianapolis, IN, CCN 150056

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations (25 of 28)

Interoperability endpoints

• Direct secure messaging: mgerdisch@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
• Cardiac Surgery Associates SC

  • Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
  • Downers Grove, IL
  • NPI 1043269160

  IA, IN

  Medicare reassignment Care Compare group NPD
• Genesis Health System

  • Surgery Physician
  • Davenport, IA
  • NPI 1528616901

  Thoracic Surgery (Cardiothoracic Vascular Surgery)

  Medicare reassignment NPD
• Genesis Health System

  • General Acute Care Hospital
  • Silvis, IL
  • NPI 1427132604
  NPD
• Major Hospital

  • General Acute Care Hospital
  • Shelbyville, IN
  • NPI 1174555692
  NPD (past)
• Loyola University Physician Foundation

  • General Practice Physician
  • Maywood, IL
  • NPI 1235148891
  NPD (past)

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

• Franciscan Health Indianapolis & Mooresville

  • General Acute Care Hospital
  • Carmel, IN
  • NPI 1376214981
  Care Compare affiliation
• Franciscan Health Indianapolis & Mooresville

  • General Acute Care Hospital
  • Indianapolis, IN
  • NPI 1386749893
  Care Compare affiliation
• Franciscan VNS Home Care, Inc.

  • Home Health Agency
  • Beech Grove, IN
  • NPI 1649276551
  Care Compare affiliation
• 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": "1145577600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1775088000000",
    "number": "1508822255",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "250 N SHADELAND AVE",
            "city": "INDIANAPOLIS",
            "state": "IN",
            "postal_code": "462194959"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1701 N SENATE BLVD",
            "city": "INDIANAPOLIS",
            "state": "IN",
            "postal_code": "462021239",
            "telephone_number": "317-962-3256"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2650 Warrenville Rd",
            "address_2": "Suite 280",
            "address_purpose": "LOCATION",
            "city": "Downers Grove",
            "state": "IL",
            "postal_code": "60515",
            "country_code": "US",
            "telephone_number": "630-324-7900",
            "fax_number": "630-324-7942",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "8051 S Emerson Ave Ste 365",
            "address_purpose": "LOCATION",
            "city": "Indianapolis",
            "state": "IN",
            "postal_code": "462370011",
            "country_code": "US",
            "telephone_number": "178-512-3313",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GERDISCH",
        "first_name": "MARC",
        "middle_name": "W",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-04-21",
        "last_updated": "2026-04-02",
        "certification_date": "2026-04-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208G00000X",
            "taxonomy_group": "",
            "desc": "Thoracic Surgery (Cardiothoracic Vascular Surgery)",
            "state": "IN",
            "license": "01048049A",
            "primary": true
        },
        {
            "code": "208G00000X",
            "taxonomy_group": "",
            "desc": "Thoracic Surgery (Cardiothoracic Vascular Surgery)",
            "state": "IL",
            "license": "036079121",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "URBANA/ROCKFORD/MOLINE",
            "identifier": "202172",
            "state": null
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "36079121",
            "state": "IL"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "COOK GROUP",
            "identifier": "S26620",
            "state": null
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "DUPAGE GROUP",
            "identifier": "344390",
            "state": null
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mgerdisch@direct.iuhealth.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "1701 N Senate Blvd",
            "city": "Indianapolis",
            "state": "IN",
            "country_code": "US",
            "postal_code": "462021239",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mgerdisch104570@direct.luhs.org",
            "affiliation": "Y",
            "affiliationName": "LOYOLA UNIVERSITY MEDICAL CENTER",
            "address_1": "2160 S 1st Ave",
            "city": "Maywood",
            "state": "IL",
            "country_code": "US",
            "postal_code": "601533328",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mgerdisch7704@Direct.FranciscanAlliance.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "1205 S Main St Ste 101",
            "city": "Crown Point",
            "state": "IN",
            "country_code": "US",
            "postal_code": "463073677",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Gerald S. Epstein, DDS, Inc
• Geraldines Wellness Group LLC
• Alexandra Gerber
• Rebecca Gerber, MSN, RN, AGCNS-BC
• Gavyn Alexander Gerbofsky, DO
• Patrick A Gerety, MD
• Serena Gergis
• Geriatric Primary Care of Indiana LLC
• Geriatric Psychiatric Services PLLC
• Geriatric Psychiatric Services PLLC

• Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Indianapolis, IN
• Providers in Indianapolis, IN by specialty
• Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Indiana

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 2, 2026; 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.