Louis Cai
NPI 1194220632ActiveIndividual· Ophthalmology· Sunnyvale, CA
Ophthalmology in Sunnyvale, California, trained at University of Miami, Lm Miller School of Medicine (class of 2018). In 2024 Medicare paid $246,865 for 382 patients, and Part D covered 238 of their prescriptions, 75% of them generic. Regeneron Pharmaceuticals, Inc. was the largest of 10 companies reporting payments in 2025, $863.87 in all, mostly food and beverage.
Overview
| NPI | 1194220632 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Mar 27, 2018 |
| Last updated in NPPES | Oct 14, 2026 |
| Certified by provider | Oct 14, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | ME154746 | FL |
| Ophthalmology, Retina Specialist | 207WX0107X | A194964 | 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 - Ophthalmology (CA); Practitioner - Ophthalmology (FL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 382 |
|---|---|
| Services billed | 5,353 across 38 procedure codes |
| Paid by Medicare | $246,865 |
Part D prescriptions in 2024
| Prescriptions (claims) | 238 · 357 30-day fills |
|---|---|
| Patients | 107 |
| Total drug cost | $12,013 |
| Generic share | 75% of claims |
Education and affiliations
| Medical school | University of Miami, Lm Miller School of Medicine |
|---|---|
| Graduation year | 2018 |
| Medicare specialty | Ophthalmology |
Hospital affiliation
- Good Samaritan HospitalSan Jose, CA
Industry payments (Open Payments)
- 2025$863.87 · 21 payments from 10 companies
- 2024$796.26 · 18 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Regeneron Pharmaceuticals, Inc. | $183.07 | 3 |
| Astellas Pharma Global Development | $153.41 | 1 |
| Genentech USA, Inc. | $136.45 | 4 |
| Ani Pharmaceuticals, Inc. | $126.26 | 5 |
| Regeneron Healthcare Solutions, Inc. | $104.57 | 3 |
What the 2025 payments were for
- Food and Beverage$863.87 · 21 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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