Ronald J Krajnik, MD - Medicare Emergency Medicine in Appleton, WI

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Ronald J Krajnik, MD is a medicare enrolled "Emergency Medicine" physician in Appleton, Wisconsin. He went to Medical College Of Wisconsin and graduated in 1993 and has 33 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice Thedacare Incorporated and his current practice location is 3925 N Gateway Dr, Appleton, Wisconsin. You can reach out to his office (for appointments etc.) via phone at (920) 702-6371.

Ronald J Krajnik is licensed to practice in Wisconsin (license number 35701) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1225072184.

Contact Information

Ronald J Krajnik, MD
3925 N Gateway Dr,
Appleton, WI 54913-7863
(920) 702-6371
Not Available

Map and Direction




Physician's Profile

Full NameRonald J Krajnik
GenderMale
SpecialityEmergency Medicine
Experience33 Years
Location3925 N Gateway Dr, Appleton, Wisconsin
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Ronald J Krajnik attended and graduated from Medical College Of Wisconsin in 1993
  NPI Data:
  • NPI Number: 1225072184
  • Provider Enumeration Date: 06/15/2006
  • Last Update Date: 10/16/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 4789641705
  • Enrollment ID: I20041211000009

Medical Identifiers

Medical identifiers for Ronald J Krajnik such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1225072184NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 35701 (Wisconsin)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Thedacare Medical Center - ShawanoShawano, WIHospital
Thedacare Regional Med Ctr - NeenahNeenah, WIHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Thedacare Incorporated1759294887533

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Ronald J Krajnik allows following entities to bill medicare on his behalf.
Entity NameThedacare Incorporated
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1376656959
PECOS PAC ID: 1759294887
Enrollment ID: O20031106000088
Entity NameThedacare Medical Center - Shawano, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1548260839
PECOS PAC ID: 5890605836
Enrollment ID: O20031117000117
Entity NameThedacare Medical Center - Berlin, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760413777
PECOS PAC ID: 0446151666
Enrollment ID: O20040120000214
Entity NameThedacare Regional Medical Center - Appleton, Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1902832306
PECOS PAC ID: 2163319039
Enrollment ID: O20040304000064
Entity NameThedacare Medical Center - New London, Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1538127220
PECOS PAC ID: 5698664480
Enrollment ID: O20040311000254
Entity NameThedacare Regional Medical Center-neenah Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1518993880
PECOS PAC ID: 8921090846
Enrollment ID: O20040401000148
Entity NameThedacare Medical Center - Waupaca, Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1780782680
PECOS PAC ID: 3072504216
Enrollment ID: O20040524000645
Entity NameThedacare Medical Center - Wild Rose, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1043263999
PECOS PAC ID: 6507840923
Enrollment ID: O20040615000235

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Ronald J Krajnik is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Ronald J Krajnik, MD
3 Neenah Ctr,
Neenah, WI 54956-3070

Ph: (920) 830-5900		Ronald J Krajnik, MD
3925 N Gateway Dr,
Appleton, WI 54913-7863

Ph: (920) 702-6371

Reviews and Comments


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Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.