Thu Ai Phan, OD
NPI 1679172142ActiveIndividual· Optometrist· Fullerton, CA
Optometrist (OD) in Fullerton, California, trained at Illinois College of Optometry at Chicago (class of 2020). Medicare paid $2,870 for services to 19 patients in 2024. Histosonics, Inc. was the largest of 4 companies reporting payments in 2025, $876.56 in all, mostly travel and lodging.
Overview
| NPI | 1679172142 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | OD |
| Sole proprietor | No |
| NPI issued | Oct 25, 2020 |
| Last updated in NPPES | Oct 25, 2020 |
| Certified by provider | Oct 25, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist Primary | 152W00000X | 34712 | 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) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 19 |
|---|---|
| Services billed | 54 across 10 procedure codes |
| Paid by Medicare | $2,870 |
Education and affiliations
| Medical school | Illinois College of Optometry at Chicago |
|---|---|
| Graduation year | 2020 |
| Medicare specialty | Optometry |
Medical group
- Alvin Arellano Od IncFullerton, CA · 5 clinicians
Industry payments (Open Payments)
- 2025$876.56 · 10 payments from 4 companies
- 2024$4,943 · 9 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Histosonics, Inc. | $619.36 | 6 |
| Alcon Vision LLC | $135.99 | 2 |
| Coopervision Inc. | $75.36 | 1 |
| Visioneering Technologies, Inc. | $45.85 | 1 |
What the 2025 payments were for
- Travel and Lodging$619.36 · 6 payments
- Food and Beverage$257.20 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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