Dr. Ronald J Krajnik , MD
Emergency Medicine • Appleton, WI
Professional Overview & Biography Verified Profile Summary
Dr. Ronald Krajnik, MD is a certified Emergency Medicine practicing in Appleton, WI. With approximately 33 years of clinical experience since graduating from Medical College Of Wisconsin in 1993, Dr. Krajnik delivers high-quality medical care to the local community at 3925 N GATEWAY DR.
Dr. Krajnik is affiliated with Thedacare, Incorporated and accepts Medicare assignment.
Practice Location & Contact Primary Location
3925 N Gateway Dr
Appleton, WI 549137863
Medicare Profile & Education
Medical College Of Wisconsin
1993
✓ Accepts Assignment
In-Person Only
Specialty Benchmarks & Practice Insights
Comparative analytics for Emergency Medicine in Appleton, WI
Practicing in Appleton, WI (1497 Statewide)
In-Person Office Visits Only
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Clinical Seniority & Experience Comparison
Medical Specialties & State Licenses
CMS Verified: 2025-10-16NUCC Taxonomy Code: 207P00000X
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
Hospital & Practice Group Affiliations
Thedacare, Incorporated
3925 N Gateway Dr, Appleton, WI 549137863
Phone: 9204548401
Secondary Practice Locations
1405 Mill St
New London, WI 549612155
Phone: 9205312021
Practice Associates & Co-Workers
Healthcare professionals and specialists practicing at this location or sharing practice phone/fax
Family Medicine
Doctor of Osteopathic Medicine (D.O.)
Nurse Practitioner - Family
Advanced Practice Nurse Prescriber
Nurse Practitioner - Family
Certified Registered Nurse Practitioner, Advanced Practice Registered Nurse
Nurse Practitioner - Family
Family Medicine
Doctor of Medicine (M.D.)
Physician Assistant
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
Registered at 3925 N GATEWAY DR, APPLETON, WI 549137863 (Tel: 9207026371)
Registered at 3 NEENAH CTR, NEENAH, WI 549563070 (Tel: 9208305900)
NPI status registered as active in NPPES database
Registered at 1405 MILL ST, NEW LONDON, WI 549612155 (Tel: 9205312021)
Registered at PO BOX 8003, APPLETON, WI 549128003 (Tel: 9209963298)
Recorded as RONALD KRAJNIK, MD
Emergency Medicine (License #35701 in WI)
First registered as active Individual Practitioner in NPPES Database.
Patient & Community Reviews
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NPI Administrative Meta
Mailing Address
3 Neenah Ctr
Neenah, WI 549563070
Phone: 9208305900
This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.