Doctor profile · Federal record
Dr. Willis Ko, MD
Interventional Cardiology Physician (CMS: Interventional Cardiology) · Cardiovascular Disease Physician · Internal Medicine Physician · Interventional Cardiology Physician · Maryville, IL
- NPI 1215465307
- Accepts Medicare
- 9 yrs in practice
- Licensed in 3 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 4 locations .
- Primary practice
-
6810 State Route 162 Ste 102B
Maryville, IL 620628560
(618) 288-4076
fax (618) 288-4215 - Additional location
-
230 N Broad Street, Hahnemann University Hospital
Philadelphia, PA 19102
(215) 762-7000 - Additional location
-
5645 Main St
Flushing, NY 113555045
(718) 670-2000 - Additional location
-
201 14Th St Sw
Largo, FL 337703133
(727) 588-3700
fax (727) 585-7205 - Mailing address
-
660 Mason Ridge Center Dr Ste 300
Saint Louis, MO 631418512
Show 1 more location
Credentials & registration
- NPI registered
- June 2017 — 9 yrs on file
- Profile last updated
- September 19, 2025
- Year of graduation
- 2017 — 9 yrs since
- Specialty taxonomy
- 207RI0011X — NUCC code
- State licenses (3)
- Illinois #036171090 · Pennsylvania #MT213475 · Missouri #2024024174
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1215465307. Last verified May 11, 2026.Open Payments
Industry payments received
All-time total
$1,116
Transactions
31
Manufacturers
11
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Medtronic, INC. | 5 | $313.47 | |
| ShockWave Medical, INC | 12 | $228.56 | |
| Inari Medical, INC. | 3 | $212.77 | |
| Abbott Laboratories | 4 | $163.17 | |
| Bolton Medical INC | 1 | $52.09 | |
| Boston Scientific Corporation | 1 | $37.06 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | 1 | $27.27 | |
| Amgen INC. | 1 | $24.32 | |
| Novartis Pharmaceuticals Corporation | 1 | $23.22 | |
| Janssen Pharmaceuticals, INC | 1 | $19.21 | |
| Pfizer INC. | 1 | $14.46 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
88
Patients
42
Total drug cost
$996
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Clopidogrel (Clopidogrel Bisulfate) | Brand | 50 | 29 | $606 |
| Atorvastatin Calcium | Generic | 23 | 13 | $279 |
| Carvedilol | Generic | 15 | 0 | $111 |
Hospital affiliations
Frequently asked questions
What is Dr. Willis Ko's medical specialty?
Dr. Willis Ko practices Interventional Cardiology Physician in Maryville, IL.
Where does Dr. Willis Ko practice?
Dr. Willis Ko practices at 6810 State Route 162 Ste 102B, Maryville, IL 620628560. Office phone: 6182884076.
What is Dr. Willis Ko's NPI?
Dr. Willis Ko's National Provider Identifier (NPI) is 1215465307, issued by NPPES.
Does Dr. Willis Ko accept Medicare assignment?
Yes. Dr. Willis Ko accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.