Karena Xin Tien, DO
NPI 1821845793ActiveIndividual· Ophthalmology· Taylor, MI
Ophthalmology (DO) in Taylor, Michigan, licensed in MI, with an NPI issued in April 2024. Part D covered 20 prescriptions written in 2024, 90% of them generic. Regeneron Healthcare Solutions, Inc. was the largest of 8 companies reporting payments in 2025, $1,593 in all, mostly food and beverage.
Overview
| NPI | 1821845793 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | Yes |
| NPI issued | Apr 30, 2024 |
| Last updated in NPPES | Jun 25, 2025 |
| Certified by provider | Jun 25, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | 5151016530 | 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 Order and Referring Only - Ophthalmology (MI) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 20 · 21 30-day fills |
|---|---|
| Patients | 13 |
| Total drug cost | $219.97 |
| Generic share | 90% of claims |
Industry payments (Open Payments)
- 2025$1,593 · 21 payments from 8 companies
- 2024$478.30 · 7 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Regeneron Healthcare Solutions, Inc. | $637.47 | 5 |
| Sight Sciences, Inc. | $476.68 | 6 |
| Astellas Pharma US Inc | $131.65 | 1 |
| Apellis Pharmaceuticals, Inc. | $117.65 | 1 |
| Glaukos Corporation | $115.21 | 3 |
What the 2025 payments were for
- Food and Beverage$1,593 · 21 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Ophthalmology providers in Taylor
- 1437339207
- 1477327500
- 1386915635
- 1043512270
- 1396620514
- 1740464775
- 1518112978
- 1053571034
- 1356505010
- 1538121884
- 1699467712
- 1063408482