Mark Andrew Welnick, M.D.

Primary specialty

Diagnostic Radiology PhysicianTaxonomy code 2085R0202X

License

66995-20 Issued in WI

Practice address

744 S Webster Ave
Green Bay, WI 54301-3505

Phone

(920) 433-6084

Fax

(920) 445-7289

NPI assigned

Apr 16, 2012

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

Medicare fee-for-service enrollment

Enrolled in WI, MI2 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 2

Specialty

Diagnostic RadiologyAlso: Interventional Radiology

Education

University of Wisconsin School of Medicine, 2012

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Baycare Aurora LLCGroup PAC ID 0244130557, 197 clinicians

St Francis HospitalGroup PAC ID 5991604753, 85 clinicians

Bellin Memorial Hospital IncGroup PAC ID 8820900749, shared by 10 NPIs, 685 clinicians

Osf Multi-Specialty GroupGroup PAC ID 3678889789, 2,123 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Bellin Memorial Hospital Hospital, Green Bay, WI, CCN 520049
• Aurora Baycare Medical Ctr Hospital, Green Bay, WI, CCN 520193
• Osf St Francis Hospital and Medical Group Hospital, Escanaba, MI, CCN 231337
• Bellin Health Oconto Hospital Hospital, Oconto, WI, CCN 521356
• Dickinson County Memorial Hospital Hospital, Iron Mountain, MI, CCN 230055

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: mwelnick943054@direct.emplifyhealth.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.

• Osf Multi-Specialty Group

  • Internal Medicine Physician
  • Peoria, IL
  • NPI 1922445527

  WI

  Medicare reassignment Care Compare group NPD
• St. Francis Hospital

  • Obstetrics & Gynecology Physician
  • Escanaba, MI
  • NPI 1700828837
  Medicare reassignment Care Compare group NPD
• Baycare Aurora, LLC

  • General Acute Care Hospital
  • Green Bay, WI
  • NPI 1255387726
  Medicare reassignment Care Compare group
• Baycare Clinic LLP

  • Emergency Medicine Physician
  • Green Bay, WI
  • NPI 1588609648
  Medicare reassignment NPD
• Bellin Memorial Hospital Inc

  • Rural Health Clinic/Center
  • Algoma, WI
  • NPI 1609838473
  Medicare reassignment NPD
• Oconto Hospital & Medical Center Inc

  • Critical Access Hospital
  • Oconto, WI
  • NPI 1356373302
  Medicare reassignment NPD
• Oconto Hospital & Medical Center, Inc.

  • Ambulatory Surgical Clinic/Center
  • Marinette, WI
  • NPI 1881129351
  Medicare reassignment NPD
• Bellin Memorial Hospital Inc

  • Cardiovascular Disease Physician
  • Crystal Falls, MI
  • NPI 1376649509
  Medicare reassignment NPD
• Oconto Hospital & Medical Center, Inc.

  • Rural Health Clinic/Center
  • Menominee, MI
  • NPI 1356799969
  Medicare reassignment NPD
• Baycare Clinic LLP

  • Durable Medical Equipment & Medical Supplies
  • Manitowoc, WI
  • NPI 1134490758
  NPD
• Bellin Memorial Hospital Inc

  • Family Medicine Physician
  • Green Bay, WI
  • NPI 1033172390

  Diagnostic Radiology

  NPD
• Bellin Memorial Hospital Inc

  • Rural Health Clinic/Center
  • Kewaunee, WI
  • NPI 1699737379
  NPD

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

• Baycare Aurora, LLC

  • General Acute Care Hospital
  • Green Bay, WI
  • NPI 1255387726
  Care Compare affiliation
• Bellin Memorial Hospital Inc.

  • General Acute Care Hospital
  • Green Bay, WI
  • NPI 1891740585
  Care Compare affiliation
• Oconto Hospital & Medical Center Inc

  • Critical Access Hospital
  • Oconto, WI
  • NPI 1356373302
  Care Compare affiliation
• St Francis Hospital

  • Critical Access Hospital
  • Escanaba, MI
  • NPI 1922058551
  Care Compare affiliation

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

{
    "created_epoch": "1334534400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1756339200000",
    "number": "1255698221",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 22487",
            "city": "GREEN BAY",
            "state": "WI",
            "postal_code": "543052487",
            "telephone_number": "920-445-7222",
            "fax_number": "920-445-7289"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "744 S WEBSTER AVE",
            "city": "GREEN BAY",
            "state": "WI",
            "postal_code": "543013505",
            "telephone_number": "920-433-6084",
            "fax_number": "920-445-7289"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "610 S Lincoln Rd",
            "address_purpose": "LOCATION",
            "city": "Escanaba",
            "state": "MI",
            "postal_code": "498291215",
            "country_code": "US",
            "telephone_number": "906-786-6488",
            "fax_number": "906-786-6409",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2845 Greenbrier Rd",
            "address_purpose": "LOCATION",
            "city": "Green Bay",
            "state": "WI",
            "postal_code": "543116519",
            "country_code": "US",
            "telephone_number": "920-288-4848",
            "fax_number": "920-288-4956",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "440 Woodward Ave",
            "address_purpose": "LOCATION",
            "city": "Iron Mountain",
            "state": "MI",
            "postal_code": "498014631",
            "country_code": "US",
            "telephone_number": "906-776-9040",
            "fax_number": "906-774-7279",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "820 Arbutus Ave",
            "address_purpose": "LOCATION",
            "city": "Oconto",
            "state": "WI",
            "postal_code": "541532004",
            "country_code": "US",
            "telephone_number": "920-835-1100",
            "fax_number": "920-835-1099",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2820 Roosevelt Rd",
            "address_purpose": "LOCATION",
            "city": "Marinette",
            "state": "WI",
            "postal_code": "541433834",
            "country_code": "US",
            "telephone_number": "715-735-5225",
            "fax_number": "715-735-5388",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WELNICK",
        "first_name": "MARK",
        "middle_name": "ANDREW",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2012-04-16",
        "last_updated": "2025-08-28",
        "certification_date": "2025-08-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "MN",
            "license": "63777",
            "primary": false
        },
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "WI",
            "license": "66995-20",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "AMERICAN BOARD OF RADIOLOGY",
            "identifier": "ABR-MOC",
            "state": null
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Kimberley M Welk, MFT
• Thomas James Welke, PHARM.D.
• Helen Frieda Wellens, NP
• Amanda Marie Wellnitz, APNP
• Susan J Wells, MD
• Gregory W Welsh, DDS
• Mark Wenck, M.D.
• Heather Wendland
• Alexandria Wendlandt, MS
• Macy (Tyler) Wendricks

• Diagnostic Radiology Physician in Green Bay, WI
• Providers in Green Bay, WI by specialty
• Diagnostic Radiology Physician in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 28, 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.