WILLIAM JOSEPH STEPHAN (MD) – Interventional Cardiology Physician, NPI 1851344931
Interventional Cardiology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,594 CARDIOVASCULAR DISEASE (CARDIOLOGY) in IL
Provider Addresses for WILLIAM JOSEPH STEPHAN (MD)
801 S WASHINGTON ST FL 4
NAPERVILLE, IL 605407430
Phone: (630) 600-0700
Fax: (630) 600-0701
Type: Mailing
10 MARTIN AVE STE 200
NAPERVILLE, IL 605406535
Phone: (630) 600-0700
Fax: (630) 600-0701
Type: Mailing
1919, Highland Avenue, Lombard, DuPage County, Illinois, 60148, United States
SUITE B202 ATTN JAN LEWIS
LOMBARD, IL 601486153
Phone: (630) 268-1102
Fax: (630) 268-1125
Type: Mailing
Edward Hospital, 801, South Washington Street, Naperville, DuPage County, Illinois, 60540, United States
4TH FLOOR
NAPERVILLE, IL 605407430
Phone: (630) 527-2730
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 43 Open Payments records for all available years, with a total value of $4,638.
Total Amount is formed as General ($4,638) + Research ($0) + Ownership ($0) = $4,638.
Last reported payment date: 2024-12-18 • Largest payer in this snapshot: Edwards Lifesciences Corporation ($3,004).
Total Amount
$4,638
General + Research + Ownership
Payments
43
Total payment records
General Amount
$4,638
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-18
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Edwards Lifesciences Corporation | $3,004 |
| Abbott Laboratories | $1,203 |
| Medtronic, Inc. | $157 |
| Opsens Inc. | $129 |
| CARDIVA MEDICAL, INC. | $73 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2004-06-01
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20040601000300 | I | Interventional Cardiology | IL | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| A9555 | Rubidium rb-82, diagnostic, per study dose, up to 60 millicuries | 1,008 | 504 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 961 | 666 | $0 |
| 93018 | Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician | 841 | 840 | $0 |
| 78431 | Nuclear medicine studies of blood flow in heart muscle at rest and with stress with concurrent ct scan | 501 | 500 | $0 |
| 78452 | Nuclear medicine studies of heart muscle at rest and with stress and spect | 331 | 331 | $0 |
Insurance plans in this area (ZIP 60540)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| INTERVENTIONAL CARDIOLOGY | IL | 78452 | Nuclear medicine study of vessels of heart using drugs or exercise multiple studies | 540 | 538 |
| INTERVENTIONAL CARDIOLOGY | IL | 92928 | Catheter insertion of stents in major coronary artery or branch, accessed through the skin | 15 | 12 |
| INTERVENTIONAL CARDIOLOGY | IL | 93280 | Evaluation, testing, and programming adjustment of permanent dual lead pacemaker system with physician analysis, review, and report | 26 | 24 |
| INTERVENTIONAL CARDIOLOGY | IL | 93284 | Evaluation, testing and programming adjustment of defibrillator with analysis, review and report | 11 | 11 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Cardiovascular Disease (Cardiology), Internal Medicine | IL | |
| Nurse Practitioner | IL | |
| Interventional Cardiology, Cardiovascular Disease (Cardiology) | IL | |
| Interventional Cardiology, Cardiovascular Disease (Cardiology) | IL | |
| Nurse Practitioner | IL | |
| Interventional Cardiology, Cardiovascular Disease (Cardiology) | IL | |
| Nurse Practitioner | IL | |
| Cardiac Electrophysiology, Cardiovascular Disease (Cardiology), Internal Medicine | IL | |
| Nurse Practitioner | IL | |
| Advanced Heart Failure And Transplant Cardiology, Cardiovascular Disease (Cardiology) | IL |
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