Dr. Michael Williamson, MD
Orthopedic Surgery (Orthopaedic Surgery Physician)
- Medicare participating
At a glance
- Medical school
- University of Missouri, Columbia School of Medicine (2005)
- Years since graduation
- 21
- In the NPI registry since
- 2007
- Medicare patients seen, 2024
- 455
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
- 2005Medical school: University of Missouri, Columbia School of Medicine
- 2007Registered 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
-
Orthopaedic Surgery Physician primary
MO license 2011024871 · PA license MT186890
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- St Lukes Hospital of Kansas City Kansas City, MO
- Saint Lukes North Hospital Kansas City, MO
- Hedrick Medical Center Chillicothe, MO
- Wright Memorial Hospital Trenton, MO
Medical groups
- Saint Lukes Physician Group Inc (1,237 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
- 455
- Services billed
- 5,054
- Patients’ average age
- 75
| Service | Times | Patients |
|---|---|---|
| Aspiration and/or injection of fluid from large joint | 299 | 151 |
| New patient office or other outpatient visit, 45-59 minutes | 174 | 174 |
| Established patient office or other outpatient visit, 30-39 minutes | 144 | 131 |
| Established patient office or other outpatient visit, 20-29 minutes | 141 | 100 |
| Injection, methylprednisolone acetate, 40 mg | 105 | 50 |
| X-ray of shoulder, minimum of 2 views | 64 | 46 |
| X-ray of knee, 3 views | 29 | 26 |
| X-ray of hip, 2-3 views | 26 | 19 |
| Replacement of knee joint, both sides of knee | 14 | 12 |
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.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Hydrocodone-Acetaminophen (hydrocodone/acetaminophen) Other prescribers in Kansas City, MO | 64 |
| Oxycodone Hcl Other prescribers in Kansas City, MO | 64 |
| Oxycodone-Acetaminophen (oxycodone hcl/acetaminophen) Other prescribers in Kansas City, MO | 42 |
| Clindamycin Hcl Other prescribers in Kansas City, MO | 16 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 1 companies reported 15 payments worth $1,421 in total to this clinician.
| Stryker Corporation | $1,421 |
|---|
| Travel and Lodging | $854 |
|---|---|
| Food and Beverage | $567 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Stryker Corporation Aug 25, 2025 | Travel and Lodging BLUEPRINT PATIENT SPECIFIC INSTRUMENTATION · TRAUMA & EXTREMITIES · travel to DALLAS, TX | $521 |
| Stryker Corporation Sep 26, 2025 | Travel and Lodging BLUEPRINT PATIENT SPECIFIC INSTRUMENTATION · TRAUMA & EXTREMITIES · travel to PHOENIX, AZ | $199 |
| Stryker Corporation Sep 26, 2025 | Travel and Lodging BLUEPRINT PATIENT SPECIFIC INSTRUMENTATION · TRAUMA & EXTREMITIES · travel to PHOENIX, AZ | $95.47 |
| Stryker Corporation Sep 26, 2025 | Travel and Lodging BLUEPRINT PATIENT SPECIFIC INSTRUMENTATION · TRAUMA & EXTREMITIES · travel to PHOENIX, AZ | $38.87 |
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.