Christopher J Magiera, M.D.

Primary specialty

Gastroenterology PhysicianTaxonomy code 207RG0100X

License

45086 Issued in WI

Practice address

855 N Westhaven Dr
Oshkosh, WI 54904-7668

Phone

(920) 303-8700

NPI assigned

Nov 20, 2006

Last updated

Oct 7, 2025By the provider in NPPES

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 3

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in WI

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, 1982

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Agnesian Healthcare IncGroup PAC ID 1658289624, 392 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Aurora Medical Ctr Oshkosh Hospital, Oshkosh, WI, CCN 520198
• SSM Health St Agnes Hospital-Fond Du Lac Hospital, Fond Du Lac, WI, CCN 520088

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: cmagiera@direct.iuhealth.org
• Direct secure messaging: cmagiera354494@direct.myadvocateaurora.org

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

• Agnesian Healthcare, Inc

  dba SSM Health St Agnes Hospital Fond Du Lac

  • General Acute Care Hospital
  • Fond Du Lac, WI
  • NPI 1346228541
  Medicare reassignment Care Compare group
• Aurora Medical Group, Inc.

  • Durable Medical Equipment & Medical Supplies
  • Oshkosh, WI
  • NPI 1326858044
  NPD
• Aurora Medical Group, Inc.

  • Certified Registered Nurse Anesthetist
  • Milwaukee, WI
  • NPI 1427271378
  NPD
• Aurora Medical Group, Inc.

  • Durable Medical Equipment & Medical Supplies
  • Manitowoc, WI
  • NPI 1801941075
  NPD (past)

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

• Agnesian Healthcare, Inc

  dba SSM Health St Agnes Hospital Fond Du Lac

  • General Acute Care Hospital
  • Fond Du Lac, WI
  • NPI 1346228541
  Care Compare affiliation
• Aurora Medical Center of Oshkosh, Inc

  • General Acute Care Hospital
  • Oshkosh, WI
  • NPI 1275578064
  Care Compare affiliation

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

{
    "created_epoch": "1163980800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1759795200000",
    "number": "1548334550",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 735044",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606735044",
            "telephone_number": "800-326-2250"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "855 N WESTHAVEN DR",
            "city": "OSHKOSH",
            "state": "WI",
            "postal_code": "549047668",
            "telephone_number": "920-303-8700"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MAGIERA",
        "first_name": "CHRISTOPHER",
        "middle_name": "J",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-11-20",
        "last_updated": "2025-10-07",
        "certification_date": "2025-10-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "WI",
            "license": "45086",
            "primary": true
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "IN",
            "license": "01056619A",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "ANTHEM PROVIDER NUMBER",
            "identifier": "000000966498",
            "state": "IN"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "201064770",
            "state": "IN"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "34308400",
            "state": "WI"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "cmagiera@direct.iuhealth.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "2600 Greenbush St",
            "city": "Lafayette",
            "state": "IN",
            "country_code": "US",
            "postal_code": "479042477",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Brittnie S Maass
• Stephen James Maassen, MD
• Anne Michelle Machesky, MD
• Brent Robert Macwilliams, NP,PHD
• Gonzalo Madrigal Jr., MD
• Sandra Magnuson
• Jenna Lamay Magsam
• Shawn Lee Mains, PT
• Dianna L Malkowski, PA
• Cindy L Malson, APNP

• Gastroenterology Physician in Oshkosh, WI
• Providers in Oshkosh, WI by specialty
• Gastroenterology Physician in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 7, 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.