Dr. Mark S. Slaughter, M.D.
Cardiothoracic Surgery (Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician)
- Medicare participating
At a glance
- Medical school
- Indiana University School of Medicine (1986)
- Years since graduation
- 40
- In the NPI registry since
- 2005
- Medicare patients seen, 2024
- 35
Licensed in Illinois since 1987, according to the Illinois Department of Financial and Professional Regulation. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 1986Medical school: Indiana University School of Medicine
- 2005Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician primary
KY license 42157 · IL license 036075781 (first issued 1987; not renewed) · IN license 01043482A -
Surgery Physician
IL license 036075781 (first issued 1987; not renewed) · IN license 01043482A
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Uofl Health - Jewish Hospital and Mary & Elizabeth Hospital Louisville, KY
Medical groups
- University of Louisville Physicians Inc (1,445 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 35
- Services billed
- 226
- Patients’ average age
- 64
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Payments from drug and device companies
In 2025, 10 companies reported 23 payments worth $5,769 in total to this clinician.
| Medtronic, Inc. | $5,005 |
|---|---|
| My01 Inc. | $235 |
| Surgical Specialties Corporation (US), Inc. (DBA Corza Medical) | $177 |
| Abbott Laboratories | $139 |
| Corcym Inc | $61.28 |
| Edwards Lifesciences Corporation | $59.85 |
| Kls-martin L.P. | $38.01 |
| Getinge USA Sales, LLC | $21.66 |
| Consulting Fee | $4,857 |
|---|---|
| Food and Beverage | $912 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Medtronic, Inc. May 9, 2025 | Consulting Fee | $3,657 |
| Medtronic, Inc. Feb 21, 2025 | Consulting Fee | $450 |
| Medtronic, Inc. Jun 13, 2025 | Consulting Fee | $450 |
| Medtronic, Inc. Oct 10, 2025 | Consulting Fee | $300 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.
Industry-funded research
Named as a principal investigator on 1 industry-funded study in 2025, from 1 company. The companies reported $4,540 in research payments for these studies, mostly to the institutions running them.
- EXPAND II
Medtronic, Inc.
From CMS Open Payments research payments, where companies name up to five principal investigators per payment. Research payments usually go to hospitals, universities and research sites, not to the investigator personally. A payment is not evidence of wrongdoing.