Christianne Wa, MD
NPI 1073908976ActiveIndividual· Ophthalmology, Retina Specialist· Vallejo, CA
Ophthalmology, Retina Specialist (MD) with Bay Area Retina Associates, practicing in Vallejo, California. In 2024 Medicare paid $1,632,020 for 966 patients, and Part D covered 153 of their prescriptions, 62% of them generic. Genentech USA, Inc. was the largest of 7 companies reporting payments in 2025, $508.32 in all, mostly food and beverage. Lists Alta Bates Summit Medical Center - Alta Bates Camp as a hospital affiliation.
Overview
| NPI | 1073908976 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 30, 2015 |
| Last updated in NPPES | Mar 27, 2024 |
| Certified by provider | Mar 27, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology, Retina Specialist Primary | 207WX0107X | A144991 | CA |
| Ophthalmology | 207W00000X | A144991 | CA |
| Ophthalmology | 207W00000X | R75586 | AZ |
| Ophthalmology, Retina Specialist | 207WX0107X | 4301117014 | MI |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Ophthalmology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 966 |
|---|---|
| Services billed | 23,898 across 46 procedure codes |
| Paid by Medicare | $1,632,020 |
Part D prescriptions in 2024
| Prescriptions (claims) | 153 · 247 30-day fills |
|---|---|
| Patients | 68 |
| Total drug cost | $4,775 |
| Generic share | 62% of claims |
Education and affiliations
| Graduation year | 2015 |
|---|---|
| Medicare specialty | Ophthalmology |
Medical group
- Bay Area Retina AssociatesCastro Valley, CA · 8 clinicians
Hospital affiliation
Industry payments (Open Payments)
- 2025$508.32 · 18 payments from 7 companies
- 2024$641.74 · 18 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genentech USA, Inc. | $158.12 | 5 |
| Apellis Pharmaceuticals, Inc. | $118.05 | 4 |
| Mallinckrodt Hospital Products Inc. | $70.16 | 3 |
| Astellas Pharma US Inc | $59.27 | 2 |
| Ani Pharmaceuticals, Inc. | $51.76 | 2 |
What the 2025 payments were for
- Food and Beverage$508.32 · 18 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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