Ronald J Krajnik, MD

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

35701 Issued in WI

Practice address

3925 N Gateway Dr
Appleton, WI 54913-7863

Phone

(920) 702-6371

NPI assigned

Jun 15, 2006

Last updated

Oct 16, 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 1

Addresses

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

Emergency MedicineAlso: Internal Medicine

Education

Medical College of Wisconsin, 1993

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Thedacare, IncorporatedGroup PAC ID 1759294887, 654 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Thedacare Regional Med Ctr - Neenah Hospital, Neenah, WI, CCN 520045

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: rkrajnik22932@direct.thedacare.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.

• Thedacare, Incorporated

  dba ThedaCare Physicians

  • Family Medicine Physician
  • New London, WI
  • NPI 1376656959
  Medicare reassignment Care Compare group NPD
• Thedacare Medical Center - Berlin, Inc.

  dba Community Health Network, Inc and Berlin Memorial Hospital

  • Critical Access Hospital
  • Berlin, WI
  • NPI 1760413777
  Medicare reassignment NPD
• Thedacare Medical Center - Shawano, Inc.

  • Critical Access Hospital
  • Shawano, WI
  • NPI 1548260839
  Medicare reassignment NPD
• Thedacare Medical Center - Waupaca, Inc.

  • Emergency Medicine Physician
  • Waupaca, WI
  • NPI 1780782680
  Medicare reassignment NPD
• Thedacare Medical Center - Wild Rose, Inc

  • Critical Access Hospital
  • Wild Rose, WI
  • NPI 1043263999
  Medicare reassignment NPD
• Thedacare Regional Medical Center - Appleton, Inc.

  • General Acute Care Hospital
  • Appleton, WI
  • NPI 1902832306
  Medicare reassignment NPD
• Thedacare Regional Medical Center-Neenah, Inc.

  • General Acute Care Hospital
  • Neenah, WI
  • NPI 1518993880
  Medicare reassignment NPD
• Thedacare Medical Center - New London, Inc.

  • Critical Access Hospital
  • New London, WI
  • NPI 1538127220
  Medicare reassignment
• Richard S Veiga MD SC

  • Anatomic Pathology & Clinical Pathology Physician
  • Waupaca, WI
  • NPI 1861434631
  NPD
• Thedacare Medical Center - Berlin, Inc.

  dba ThedaCare Remote Dispensing Site-Berlin

  • Community/Retail Pharmacy
  • Berlin, WI
  • NPI 1043072291
  NPD
• Thedacare Medical Center - Shawano, Inc.

  dba ThedaCare Apothecary-Shawano

  • Community/Retail Pharmacy
  • Shawano, WI
  • NPI 1306516604
  NPD
• Thedacare Medical Center - Waupaca, Inc.

  dba ThedaCare Apothecary-Waupaca

  • Community/Retail Pharmacy
  • Waupaca, WI
  • NPI 1558031856
  NPD

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

• Thedacare Regional Medical Center - Neenah, Inc.

  • General Acute Care Hospital
  • Neenah, WI
  • NPI 1023472842
  Care Compare affiliation
• Thedacare Regional Medical Center - Neenah, Inc.

  • General Acute Care Hospital
  • Menasha, WI
  • NPI 1720434806
  Care Compare affiliation
• Thedacare Regional Medical Center-Neenah, Inc.

  • General Acute Care Hospital
  • Neenah, WI
  • NPI 1518993880
  Care Compare affiliation
• Thedacare Regional Medical Center-Neenah, Inc.

  • General Acute Care Hospital
  • Oshkosh, WI
  • NPI 1861943409
  Care Compare affiliation
• Thedcare Regional Medical Center - Neenah, Inc.

  • General Acute Care Hospital
  • Oshkosh, WI
  • NPI 1679937494
  Care Compare affiliation

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

{
    "created_epoch": "1150329600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1760572800000",
    "number": "1225072184",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3 NEENAH CTR",
            "city": "NEENAH",
            "state": "WI",
            "postal_code": "549563070",
            "telephone_number": "920-830-5900",
            "fax_number": "920-830-5910"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3925 N GATEWAY DR",
            "city": "APPLETON",
            "state": "WI",
            "postal_code": "549137863",
            "telephone_number": "920-702-6371"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1405 Mill St",
            "address_purpose": "LOCATION",
            "city": "New London",
            "state": "WI",
            "postal_code": "549612155",
            "country_code": "US",
            "telephone_number": "920-531-2021",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KRAJNIK",
        "first_name": "RONALD",
        "middle_name": "J",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-06-15",
        "last_updated": "2025-10-16",
        "certification_date": "2025-10-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "WI",
            "license": "35701",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Brenda Kovach, R.PH.
• Kpsychotherapy LLC
• Lauren Renee Kraft, APNP
• Samantha Marie Kraft, LPC
• Andre Krainik, MD
• Ann Marie Kramer Obermeier, BS
• Jessica L Kramer, M.S.
• Theresa J Kramer, LPC
• Madeline Kraus, OTR
• Heather Marie Krause, RN, BSN

• Emergency Medicine Physician in Appleton, WI
• Providers in Appleton, WI by specialty
• Emergency Medicine Physician in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 16, 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.