DR. SEAN DAVID MCWILLIAMS (MD) – Phlebology Physician, NPI 1356323398
Phlebology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
212 GENERAL PRACTICE in IL
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Provider Addresses for DR. SEAN DAVID MCWILLIAMS (MD)
2001, Butterfield Road, Downers Grove, DuPage County, Illinois, 60148:60515, United States
SUITE 300
DOWNERS GROVE, IL 605151050
Phone: (630) 725-2700
Fax: (877) 489-5993
Type: Mailing
Shuman Boulevard, Naperville, DuPage County, Illinois, 60563, United States
SUITE 560
NAPERVILLE, IL 605631219
Phone: (630) 420-6801
Fax: (630) 420-6803
Type: Location
180 DANADA SQ W
WHEATON, IL 601892041
Phone: (630) 474-2600
Fax: (630) 474-2601
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 24 Open Payments records for all available years, with a total value of $104,125.
Total Amount is formed as General ($104,125) + Research ($0) + Ownership ($0) = $104,125.
Last reported payment date: 2024-12-31 • Largest payer in this snapshot: AngioDynamics, Inc. ($103,820).
Total Amount
$104,125
General + Research + Ownership
Payments
24
Total payment records
General Amount
$104,125
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-31
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| AngioDynamics, Inc. | $103,820 |
| Koya Medical, Inc. | $236 |
| TACTILE SYSTEMS TECHNOLOGY INC | $44 |
| Tactile Systems Technology Inc | $24 |
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: 2014-05-09
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 3 Medicare enrollment records; no due dates published yet.
Enrollment records
3
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 |
|---|---|---|---|---|
| I20040601000559 | I | General Practice | IL | TBD |
| I20070607000207 | I | Peripheral Vascular Disease | IN | TBD |
| I20140509000285 | I | General Practice | WI | 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 |
|---|---|---|---|---|
| 93970 | Ultrasound study of arm or leg veins with compression and maneuvers | 226 | 164 | $0 |
| 99212 | Established patient office or other outpatient visit, 10-19 minutes | 148 | 117 | $0 |
| 76942 | Ultrasonic guidance for needle placement | 146 | 77 | $0 |
| 93971 | Ultrasound study of one arm or leg veins with compression and maneuvers | 134 | 78 | $0 |
| 36475 | Destruction of first incompetent vein of arm or leg using radiofrequency and imaging guidance | 112 | 51 | $0 |
Insurance plans in this area (ZIP 60515)
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