Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Christopher M. Koenig, DO

Individual provider Emergency Medicine Physician · NPI 1104205467

Christopher M. Koenig, DO practises Emergency Medicine in Janesville, Wisconsin. Qualified in 2015, 11 years ago. Practices with Mercy Health System Corporation, a 751-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Michigan and Wisconsin.

Years since qualifying
11
Licensed in
MI, WI
In the registry since
2015
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1000 Mineral Point Ave
Janesville, WI 53548-2940
Phone: (608) 756-6611
Fax: (608) 756-6177
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 1 Genesys Pkwy, Grand Blanc, MI 48439-8065 — (810) 606-5980
  • N2950 State Road 67, Lake Geneva, WI 53147-2655 — (262) 245-0535

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 71164-21 (WI)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 5101021598 (MI)

Record details

NPI number1104205467
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 20, 2015
Last updated in NPPESMay 2, 2024
Certification dateMay 2, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyEMERGENCY MEDICINE
Medical schoolOTHER
Graduated 2015 (11 years in practice)
Group practice Mercy Health System Corporation — 751 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients261
Services billed 323 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Unitypoint Health - Meriter Hospital · Madison, WI · listed as Unity Point Health - Meriter
  • Mercy Health System Corp Hospital · Janesville, WI

Colleagues at Mercy Health System Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 751 clinicians in the practice; 12 are shown here.

Other providers in Janesville