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

Marc Patrick Janson, MD

Individual provider Anesthesiology Physician · NPI 1164416129

Marc Patrick Janson, MD practises Anesthesiology in Louisville, Kentucky. Graduated from University of Louisville School of Medicine in 2001, 25 years ago. Practices with University of Louisville Physicians Inc, a 1,433-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Kentucky.

Years since qualifying
25
Trained at
University of Louisville School of Medicine
Licensed in
KY
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

200 Abraham Flexner Way
Louisville, KY 40202-2877
Phone: (502) 852-5851
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 4000 Kresge Way, Louisville, KY 40207-4605 — (502) 259-5391

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 39543 (KY)

Record details

NPI number1164416129
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 7, 2005
Last updated in NPPESApril 17, 2026
Certification dateApril 17, 2026

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolUNIVERSITY OF LOUISVILLE SCHOOL OF MEDICINE
Graduated 2001 (25 years in practice)
Group practice University Of Louisville Physicians Inc — 1433 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients136
Services billed 199 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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.

  • Norton Clark Hospital Hospital · Jeffersonville, IN · listed as Norton Clark Hospital, LLC
  • UOFL HEALTH - JEWISH HOSPITAL and Mary & Elizabeth Hospital Hospital · Louisville, KY

Colleagues at University of Louisville Physicians Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1433 clinicians in the practice; 12 are shown here.

Other providers in Louisville