DR. SYDNEY SHUO-YI GUO (MD) – Vascular Surgery Physician, NPI 1619922291
Vascular Surgery Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
675 VASCULAR SURGERY in CA
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Provider Addresses for DR. SYDNEY SHUO-YI GUO (MD)
100, North Brent Street, Ventura, Ventura County, California, 93003, United States
STE 201
VENTURA, CA 93003
Phone: (805) 643-3330
Fax: (805) 643-3331
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 11 Open Payments records for all available years, with a total value of $472.
Total Amount is formed as General ($472) + Research ($0) + Ownership ($0) = $472.
Last reported payment date: 2024-08-14 • Largest payer in this snapshot: Bard Peripheral Vascular, Inc. ($218).
Total Amount
$472
General + Research + Ownership
Payments
11
Total payment records
General Amount
$472
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-08-14
Latest reported date
Top Companies
Largest payers in this snapshot
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: 2005-04-21
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 |
|---|---|---|---|---|
| I20050421000437 | 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 |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 553 | 298 | $0 |
| 99152 | Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | 172 | 128 | $0 |
| 93990 | Ultrasound of hemodialysis access | 166 | 93 | $0 |
| 76937 | Ultrasonic guidance for blood vessel access | 148 | 115 | $0 |
| 93922 | Ultrasound study of arm and leg arteries | 129 | 94 | $0 |
Insurance plans in this area (ZIP 93003)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Vascular Surgery, General Surgery | CA | |
| Vascular Surgery | CA | |
| Vascular Surgery | CA |
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