Hoi Yee Annie Lo, MD
NPI 1174083521ActiveIndividual· Surgery, Vascular Surgery· Oxnard, CA
Surgery, Vascular Surgery (MD) in Oxnard, California, trained at Eastern Virginia Medical School (class of 2019). Part D covered 149 prescriptions written in 2024, 89% of them generic. Medtronic, Inc. was the largest of 4 companies reporting payments in 2025, $1,526 in all, mostly food and beverage.
Overview
| NPI | 1174083521 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 21, 2019 |
| Last updated in NPPES | Aug 10, 2026 |
| Certified by provider | Aug 10, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery, Vascular Surgery Primary | 2086S0129X | A182205 | CA |
| Surgery | 208600000X | A182205 | CA |
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) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 149 · 178 30-day fills |
|---|---|
| Patients | 96 |
| Total drug cost | $12,077 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | Eastern Virginia Medical School |
|---|---|
| Graduation year | 2019 |
| Medicare specialty | Vascular Surgery |
Industry payments (Open Payments)
- 2025$1,526 · 13 payments from 4 companies
- 2024$504.10 · 9 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $1,098 | 8 |
| Boston Scientific Corporation | $248.10 | 2 |
| Penumbra, Inc. | $110.00 | 1 |
| Endologix LLC | $70.01 | 2 |
What the 2025 payments were for
- Food and Beverage$1,151 · 12 payments
- Education$375.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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