WINSTON SCHUYLER MARSHALL (M.D.) – Interventional Cardiology Physician, NPI 1447287057
Interventional Cardiology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
2,430 CARDIOVASCULAR DISEASE (CARDIOLOGY) in TX
Provider Addresses for WINSTON SCHUYLER MARSHALL (M.D.)
5012 S US HIGHWAY 75 STE 300
ATTN. BILLING
DENISON, TX 750204589
Phone: (903) 416-6325
Fax: (903) 416-6326
Type: Mailing
5012 S US HIGHWAY 75
SUITE 100
DENISON, TX 750204587
Phone: (903) 416-6325
Fax: (903) 416-6326
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
CMS reports 132 Open Payments records for all available years, with a total value of $3,328.
Total Amount is formed as General ($3,328) + Research ($0) + Ownership ($0) = $3,328.
Last reported payment date: 2024-12-18 • Largest payer in this snapshot: Merck Sharp & Dohme LLC ($449).
Total Amount
$3,328
General + Research + Ownership
Payments
132
Total payment records
General Amount
$3,328
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 |
|---|---|
| Merck Sharp & Dohme LLC | $449 |
| HeartFlow, Inc. | $315 |
| E.R. Squibb & Sons, L.L.C. | $278 |
| ShockWave Medical, Inc | $231 |
| CVRx, Inc. | $176 |
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: 2010-05-04
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 |
|---|---|---|---|---|
| I20100504000680 | I | Interventional Cardiology | TX | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 1,157 | 857 | $0 |
| 93010 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 783 | 599 | $0 |
| 93306 | Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | 444 | 436 | $0 |
| J2785 | Injection, regadenoson, 0.1 mg | 288 | 71 | $0 |
| 93000 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 277 | 260 | $0 |
Insurance plans in this area (ZIP 75020)
Loading plans...
Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| INTERVENTIONAL CARDIOLOGY | TX | 92928 | Catheter insertion of stents in major coronary artery or branch, accessed through the skin | 14 | 11 |
| INTERVENTIONAL CARDIOLOGY | TX | 93280 | Evaluation, testing, and programming adjustment of permanent dual lead pacemaker system with physician analysis, review, and report | 370 | 267 |
| INTERVENTIONAL CARDIOLOGY | TX | 93458 | Insertion of catheter in left heart for imaging of blood vessels or grafts and left lower heart | 39 | 39 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Radiation Oncology | TX | |
| Nurse Practitioner | TX | |
| Internal Medicine | TX | |
| - | TX | |
| - | TX | |
| Clinical Social Worker | TX | |
| - | TX | |
| Nurse Practitioner | TX | |
| Orthopedic Surgery | TX | |
| Clinical Psychologist | TX |
Reviews
All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.
No reviews yet. Be the first to share your experience — your opinion helps families compare providers.