GEORGE PISIMISIS (MD) – Vascular Surgery Physician, NPI 1538288311
Vascular Surgery Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
492 VASCULAR SURGERY in TX
Provider Addresses for GEORGE PISIMISIS (MD)
PO BOX 4439
HOUSTON, TX 772104439
Phone: (713) 792-2991
Type: Mailing
1515 HOLCOMBE BLVD
HOUSTON, TX 770304000
Phone: (713) 792-6161
Type: Location
71780 SAN JACINTO DR BLDG I
RANCHO MIRAGE, CA 922705516
Phone: (760) 568-3461
Fax: (760) 423-6273
Type: Mailing
2720 N HARBOR BLVD STE 140
FULLERTON, CA 928352625
Phone: (657) 566-8800
Fax: (657) 566-8810
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 33 Open Payments records for all available years, with a total value of $20,555.
Total Amount is formed as General ($20,555) + Research ($0) + Ownership ($0) = $20,555.
Last reported payment date: 2024-12-18 • Largest payer in this snapshot: AngioDynamics, Inc. ($19,250).
Total Amount
$20,555
General + Research + Ownership
Payments
33
Total payment records
General Amount
$20,555
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 |
|---|---|
| AngioDynamics, Inc. | $19,250 |
| Medtronic, Inc. | $902 |
| Abbott Laboratories | $78 |
| Kiniksa Pharmaceuticals International, plc | $67 |
| ATRICURE, INC. | $66 |
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: 2023-02-17
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 |
|---|---|---|---|---|
| I20230217001241 | I | Vascular Surgery | CA | 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 | 18 | 15 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 15 | 12 | $0 |
Insurance plans in this area (ZIP 77210)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| VASCULAR SURGERY | TX | 93926 | Ultrasound study of arteries and arterial grafts of one leg or limited | 16 | 11 |
| VASCULAR SURGERY | TX | 93971 | Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers | 18 | 16 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | CA | |
| Internal Medicine, Cardiovascular Disease (Cardiology) | CA | |
| - | CA |
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