Willis Ko, MD
Interventional Cardiology (CMS) · Maryville, IL
At a glance
6810 State Route 162 Ste 102B, Maryville, IL 62062-8560
Published activity: Coronary angioplasty and stenting · Pacemaker insertion or repair. View counts and coverage
NPPES record updated Sep 19, 2025. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
6810 State Route 162 Ste 102BMaryville, IL 62062-8560
Additional reported practice locations
201 14Th St SwLargo, FL 337703133
Phone: 7275883700
Fax: 7275857205 5645 Main St
Flushing, NY 113555045
Phone: 7186702000 230 N Broad Street
Hahnemann University Hospital
Philadelphia, PA 19102
Phone: 2157627000
Education & affiliations
- Medical / professional school
- Not reported in this file
- Graduation year
- 2017
- CMS specialties
- Interventional Cardiology
Practice groups
Reported hospital affiliations
- Anderson Hospital Maryville, IL
- Christian Hospital Northeast Saint Louis, MO
- Ssm St Clare Health Center Fenton, MO
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
| Procedure category | Published Medicare activity |
|---|---|
| Coronary angioplasty and stenting | 13 |
| Pacemaker insertion or repair | 1-10 |
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Food and beverage | $243.27 |
Reporting companies
| Company | Amount |
|---|---|
| ABBOTT LABORATORIES | $76.31 |
| NOVARTIS PHARMACEUTICALS CORPORATION | $40.57 |
| AMGEN INC. | $37.07 |
| CVRX, INC. | $28.42 |
| MEDTRONIC, INC. | $26.68 |
| SCPHARMACEUTICALS INC. | $19.14 |
| PFIZER INC. | $15.08 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Interventional Cardiology (CMS)
- Taxonomy code
- 207RI0011X
- Enumeration date
- Jun 1, 2017
- Record updated
- Sep 19, 2025
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- MD
Reported taxonomies and licenses
207RI0011X · Primary
License reported: 036171090 IL
207RC0000X
License reported: MT213475 PA
207R00000X
License reported: MT213475 PA
207RI0011X
License reported: 2024024174 MO
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
6810 State Route 162 Ste 102BMaryville, IL 62062-8560
- Phone
- (618) 288-4076
- Fax
- (618) 288-4215
Mailing address
660 MASON RIDGE CENTER DR STE 300SAINT LOUIS, MO 631418512
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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