Tammy Liu Na, O.D.
NPI 1346801933ActiveIndividual· Optometrist· Irvine, CA
Optometrist (O.D.) in Irvine, California, trained at Southern California College of Optometry (class of 2019). Enrolled in Medicare as practitioner - optometry. Mallinckrodt Hospital Products Inc. was the largest of 9 companies reporting payments in 2025, $893.72 in all, mostly food and beverage.
Overview
| NPI | 1346801933 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | O.D. |
| Sole proprietor | No |
| NPI issued | Jun 24, 2019 |
| Last updated in NPPES | Jul 27, 2026 |
| Certified by provider | Jul 27, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist Primary | 152W00000X | 34240TLG | 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 - Optometry (CA) |
|---|
Education and affiliations
| Medical school | Southern California College of Optometry |
|---|---|
| Graduation year | 2019 |
| Medicare specialty | Optometry |
Medical group
- Southern California Permanente Medical GroupRedlands, CA · 11,293 clinicians
Industry payments (Open Payments)
- 2025$893.72 · 27 payments from 9 companies
- 2024$1,205 · 28 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Mallinckrodt Hospital Products Inc. | $167.69 | 8 |
| Regeneron Healthcare Solutions, Inc. | $165.78 | 5 |
| Johnson & Johnson Vision Care, Inc. | $161.22 | 2 |
| Astellas Pharma US Inc | $134.29 | 1 |
| Genentech USA, Inc. | $106.16 | 4 |
What the 2025 payments were for
- Food and Beverage$893.72 · 27 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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