Doctor profile · Federal record
Dr. Michael Williamson, MD
Orthopaedic Surgery Physician (CMS: Orthopedic Surgery) · Orthopaedic Surgery Physician · Kansas City, MO
- NPI 1285751859
- Accepts Medicare
- MIPS 77.3 / 100 · 2023
- 21 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
9411 N Oak Trfy, Ste 240
Kansas City, MO 641552233
(816) 468-8632 - Mailing address
-
Po Box 504538
Saint Louis, MO 631504538
Credentials & registration
- NPI registered
- March 2007 — 19 yrs on file
- Profile last updated
- March 29, 2012
- Year of graduation
- 2005 — 21 yrs since
- Specialty taxonomy
- 207X00000X — NUCC code
- State licenses (2)
- Missouri #2011024871 · Pennsylvania #MT186890
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1285751859. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
996
Distinct HCPCS
10
Medicare allowed
$90,491
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
20610 |
Aspiration and/or injection of fluid from large joint | 202 | 97 | $50 | |
J1030 |
Injection, methylprednisolone acetate, 40 mg | 105 | 50 | $8 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 101 | 101 | $126 | |
20610 |
Aspiration and/or injection of fluid from large joint | 97 | 54 | $73 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 89 | 63 | $62 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 73 | 73 | $162 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 72 | 67 | $92 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 72 | 64 | $124 | |
73030 |
X-ray of shoulder, minimum of 2 views | 64 | 46 | $39 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 52 | 37 | $88 |
In context: peer comparison
Among 9 peers in this city , average services per provider: 333. This provider delivers 3.0× the peer median.Open Payments
Industry payments received
All-time total
$388
Transactions
7
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Stryker Corporation | 6 | $239.81 | |
| Zimmer Biomet Holdings, Inc. | 1 | $148.60 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
205
Patients
113
Total drug cost
$1,521
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Oxycodone Hcl | Generic | 82 | 46 | $563 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 67 | 42 | $695 |
| Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) | Brand | 32 | 25 | $202 |
| Clindamycin Hcl | Generic | 13 | 0 | $18 |
| Tramadol Hcl | Generic | 11 | 0 | $44 |
Hospital affiliations
Frequently asked questions
What is Dr. Michael Williamson's medical specialty?
Dr. Michael Williamson practices Orthopaedic Surgery Physician in Kansas City, MO.
Where does Dr. Michael Williamson practice?
Dr. Michael Williamson practices at 9411 N Oak Trfy, Kansas City, MO 641552233. Office phone: 8164688632.
What is Dr. Michael Williamson's NPI?
Dr. Michael Williamson's National Provider Identifier (NPI) is 1285751859, issued by NPPES.
Does Dr. Michael Williamson accept Medicare assignment?
Yes. Dr. Michael Williamson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Williamson commonly perform?
Top Medicare-reported procedures in 2023: Aspiration and/or injection of fluid from large joint (HCPCS 20610); Injection, methylprednisolone acetate, 40 mg (HCPCS J1030); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.