DR. STEPHEN R BARTOS (MD) – Surgery Physician, NPI 1083601645
Surgery Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
848 GENERAL SURGERY in WI
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Provider Addresses for DR. STEPHEN R BARTOS (MD)
1111, Delafield Street, Waukesha, Waukesha County, Wisconsin, 53188, United States
STE 209
WAUKESHA, WI 531883403
Phone: (262) 542-0444
Fax: (262) 542-8214
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 4 Open Payments records for all available years, with a total value of $3,136.
Total Amount is formed as General ($3,136) + Research ($0) + Ownership ($0) = $3,136.
Last reported payment date: 2024-04-26 • Largest payer in this snapshot: Intuitive Surgical, Inc. ($3,000).
Total Amount
$3,136
General + Research + Ownership
Payments
4
Total payment records
General Amount
$3,136
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-04-26
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Intuitive Surgical, Inc. | $3,000 |
| Baxter Healthcare | $78 |
| CONMED Corporation | $58 |
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: 2010-02-17
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 |
|---|---|---|---|---|
| I20100217000263 | I | General Surgery | 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 |
|---|---|---|---|---|
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 68 | 68 | $0 |
| 93880 | Ultrasound of both sides of head and neck blood flow | 68 | 67 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 63 | 57 | $0 |
| 99231 | Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 23 | 17 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 21 | 21 | $0 |
Insurance plans in this area (ZIP 53188)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| GENERAL SURGERY | WI | 93926 | Ultrasound study of arteries and arterial grafts of one leg or limited | 14 | 14 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Physician Assistant | WI | |
| Physician Assistant | WI | |
| General Surgery | WI | |
| General Surgery, Peripheral Vascular Disease, Vascular Surgery | WI | |
| General Surgery, Peripheral Vascular Disease, Vascular Surgery | WI | |
| Physician Assistant | WI | |
| General Surgery | WI | |
| General Surgery, Surgical Oncology, Vascular Surgery | WI | |
| General Surgery, Colorectal Surgery (Proctology), Vascular Surgery | WI | |
| - | WI |
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