John P. Karagiannis, M.D.

Primary specialty

Gastroenterology PhysicianTaxonomy code 207RG0100X

License

01041123A Issued in IN

Practice address

621 Memorial Dr Ste 511
South Bend, IN 46601-1075

Phone

(574) 544-5580

Fax

(574) 544-5579

NPI assigned

May 24, 2005

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other identifiers 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

Gastroenterology

Education

Loyola University of Chicago, Stritch School of Medicine, 1987

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Privia Medical Group Indiana LLCGroup PAC ID 2365341674, 28 clinicians

Beacon Medical Group IncGroup PAC ID 1254243306, 575 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Elkhart General Hospital Hospital, Elkhart, IN, CCN 150018

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: john.karagiannis.1@31626.direct.athenahealth.com
• Direct secure messaging: john.karagiannis@elkhartc.eclinicaldirectplus.com

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.

• Privia Medical Group Indiana, LLC

  • Multi-Specialty Clinic/Center
  • Elkhart, IN
  • NPI 1013912286
  Medicare reassignment Care Compare group NPD
• Beacon Medical Group, Inc.

  • Family Medicine Physician
  • Mishawaka, IN
  • NPI 1033161617
  Care Compare group
• Privia Medical Group Indiana, LLC

  • Ophthalmology Physician
  • Elkhart, IN
  • NPI 1013380526
  NPD
• Privia Medical Group Indiana, LLC

  • Family Nurse Practitioner
  • Wakarusa, IN
  • NPI 1568147809
  NPD

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

• Elkhart General Hospital, Inc.

  • General Acute Care Hospital
  • Elkhart, IN
  • NPI 1477551489
  Care Compare affiliation

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

{
    "created_epoch": "1116892800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782345600000",
    "number": "1386647170",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3245 HEALTH DR STE 100",
            "city": "GRANGER",
            "state": "IN",
            "postal_code": "465301380",
            "telephone_number": "574-647-3725"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "621 MEMORIAL DR STE 511",
            "city": "SOUTH BEND",
            "state": "IN",
            "postal_code": "466011075",
            "telephone_number": "574-544-5580",
            "fax_number": "574-544-5579"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1020 High Rd",
            "address_purpose": "LOCATION",
            "city": "Bremen",
            "state": "IN",
            "postal_code": "465061093",
            "country_code": "US",
            "telephone_number": "574-309-9967",
            "fax_number": "574-309-9968",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "500 Arcade Ave Ste 300",
            "address_purpose": "LOCATION",
            "city": "Elkhart",
            "state": "IN",
            "postal_code": "465142486",
            "country_code": "US",
            "telephone_number": "574-389-7362",
            "fax_number": "574-389-5612",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KARAGIANNIS",
        "first_name": "JOHN",
        "middle_name": "P.",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-05-24",
        "last_updated": "2026-06-25",
        "certification_date": "2026-06-25",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "IN",
            "license": "01041123A",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "100114340",
            "state": "IN"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Laura Kanyimbo, DNP
• Gabrielle Kapaldo
• McKenzi Kaplanis, DO
• Gurbachan S Kapoor, MD
• Jennifer Karagiannakis, RN
• Lorraine E Karam, MA, LMHC
• Akila T Karanja, FNP-BC
• Amy Kay Karanja, NP
• Karefirst Indiana PC
• Karla Hicks Corporation

• Gastroenterology Physician in South Bend, IN
• Providers in South Bend, IN by specialty
• Gastroenterology Physician in Indiana

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 25, 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.