Christopher Nguyen Ta, MD
NPI 1609903020ActiveIndividual· Ophthalmology· Stanford, CA
Ophthalmology (MD) in Stanford, California, trained at University of Minnesota Medical School (class of 1994). Their prescriptions cost Medicare Part D more than their services did: $263,370 for 888 claims, against $89,864 paid for services in 2024. Dompe Farmaceutici S.P.A. was the largest of 2 companies reporting payments in 2025, $2,441 in all, mostly consulting fees.
Overview
| NPI | 1609903020 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Feb 27, 2007 |
| Last updated in NPPES | Apr 4, 2024 |
| Certified by provider | Apr 4, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | A54687 | CA |
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 | 372 |
|---|---|
| Services billed | 1,210 across 26 procedure codes |
| Paid by Medicare | $89,864 |
Part D prescriptions in 2024
| Prescriptions (claims) | 888 · 1,407 30-day fills |
|---|---|
| Patients | 247 |
| Total drug cost | $263,370 |
| Generic share | 64% of claims |
Education and affiliations
| Medical school | University of Minnesota Medical School |
|---|---|
| Graduation year | 1994 |
| Medicare specialty | Ophthalmology |
Medical group
- Stanford Health CareStanford, CA · 3,122 clinicians
Hospital affiliation
- Stanford Health CareStanford, CA
Industry payments (Open Payments)
- 2025$2,441 · 3 payments from 2 companies
- 2024$427.74 · 4 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Dompe Farmaceutici S.P.A. | $2,410 | 2 |
| Alcon Vision LLC | $31.24 | 1 |
What the 2025 payments were for
- Consulting Fee$2,400 · 1 payment
- Food and Beverage$41.00 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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