Physician Profile
William R. Reilly, M.D. is a healthcare provider in Waterloo, IL specializing in interventional cardiology. William trained at Southern Illinois University School of Medicine, graduating in 1980. According to Medicare claims data, William cared for 1,573 Medicare patients across 2,914 services. The services billed most often include injection, regadenoson, 0.1 mg, evaluation of cardiac rhythm monitor system, remote up to 30 days, and technetium tc-99m tetrofosmin, diagnostic, per study dose.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
509 HAMACHER ST STE 204
Waterloo, IL 62298
1028 S Kirkwood Rd
Saint Louis, MO 63122
Within Interventional Cardiology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Artery blockages
Blood clots
Blood pressure
Chest symptoms
Circulation & veins
Coronary disease
Heart failure
Heart muscle
Heart muscle conditions
Heart rhythm
Heart rhythm & blood flow
Heart valves
Structural & congenital
Structural heart
Valve disease
Vascular disease
Vein conditions
Most searched procedures
Artery procedures
Blood pressure procedures
Circulation & limbs
Circulatory support
Clot procedures
Coronary stenting
Diagnostic catheterization
Diagnostic tests
Diagnostics & monitoring
Emergency heart procedures
Heart devices
Heart muscle
Heart support
Imaging & diagnostics
Stenting
Structural heart repair
Structural repair
Valve procedures
Valve replacement
Vein procedures
2,914 services · 1,573 patients · 18 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Nuclear medicine studies of heart muscle at rest and with stress and spect | Imaging | 78452 |
31 |
| Evaluation of cardiac rhythm monitor system, remote up to 30 days | Treatment | 93298 |
450 |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
229 |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician | Treatment | 93018 |
195 |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician | Treatment | 93016 |
195 |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) | Treatment | 93017 |
192 |
| Evaluation of single, dual, multiple lead or leadless pacemaker system or implantable defibrillator system, remote up to 90 days | Treatment | 93296 |
171 |
| Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days | Treatment | 93294 |
147 |
| Evaluation of implantable heart and blood vessel monitoring system, remote up to 30 days | Treatment | 93297 |
90 |
| Ultrasound of both sides of head and neck blood flow | Treatment | 93880 |
60 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
William R. Reilly is an interventional cardiologist in Waterloo, IL. That is the designation recorded for this NPI in the federal registry, where it is listed as “Interventional Cardiology”.
NPI registry
William R. Reilly is listed at 509 Hamacher St Ste 204, Waterloo, IL 62298. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (618) 939-4200. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
William R. Reilly's National Provider Identifier is 1205846516. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
William R. Reilly attended Southern Illinois University School of Medicine, graduating in 1980. This comes from the CMS National Downloadable File.
CMS public data
William R. Reilly has 46 years experience. Calculated from a graduation year of 1980, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, William R. Reilly performs imaging including nuclear medicine studies of heart muscle at rest and with stress and spect; provides treatments such as evaluation of cardiac rhythm monitor system, remote up to 30 days and ultrasound of heart with color-depicted blood flow, rate, direction and valve function. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by William R. Reilly. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.