Sydney Shuo-Yi Guo, MD
NPI 1619922291ActiveIndividual· Surgery, Vascular Surgery· Ventura, CA
Surgery, Vascular Surgery (MD) in Ventura, California, trained at New York University School of Medicine (class of 1997). In 2024 Medicare paid $297,440 for 482 patients, and Part D covered 279 of their prescriptions, 83% of them generic. Penumbra, Inc. was the largest of 5 companies reporting payments in 2025, $347.54 in all, mostly food and beverage.
Overview
| NPI | 1619922291 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 23, 2006 |
| Last updated in NPPES | Jun 21, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery, Vascular Surgery Primary | 2086S0129X | A68397 | CA |
| Surgery, Vascular Surgery | 2086S0129X | 0101239726 | VA |
| Surgery | 208600000X | 0101239726 | VA |
| Specialist | 174400000X | 0101239726 | VA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Vascular Surgery (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 482 |
|---|---|
| Services billed | 2,548 across 102 procedure codes |
| Paid by Medicare | $297,440 |
Part D prescriptions in 2024
| Prescriptions (claims) | 279 · 513 30-day fills |
|---|---|
| Patients | 123 |
| Total drug cost | $45,572 |
| Generic share | 83% of claims |
Education and affiliations
| Medical school | New York University School of Medicine |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Vascular Surgery |
Medical group
- Kevin M Casey MD APMCSanta Maria, CA · 4 clinicians
Hospital affiliations
- Community Memorial Hospital - OjaiOjai, CA
- Community Memorial Hospital - VenturaVentura, CA
- St Johns Regional Medical CenterOxnard, CA
Industry payments (Open Payments)
- 2025$347.54 · 10 payments from 5 companies
- 2024$169.92 · 5 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Penumbra, Inc. | $96.44 | 2 |
| Philips North America LLC | $90.00 | 1 |
| Abbott Laboratories | $84.41 | 4 |
| Medtronic, Inc. | $58.98 | 2 |
| Boston Scientific Corporation | $17.71 | 1 |
What the 2025 payments were for
- Food and Beverage$347.54 · 10 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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