Erin Song Duncan, OD
NPI 1821191222ActiveIndividual· Optometrist· San Dimas, CA
Optometrist (OD) in San Dimas, California, trained at State University of New York - State College Optometry (class of 2002). Part D covered 206 prescriptions written in 2024, 92% of them generic. Alcon Vision LLC reported $153.85 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1821191222 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | OD |
| Sole proprietor | No |
| NPI issued | Sep 7, 2006 |
| Last updated in NPPES | Sep 7, 2022 |
| Certified by provider | Sep 7, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist Primary | 152W00000X | 12152TPA | 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) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 206 · 349 30-day fills |
|---|---|
| Patients | 54 |
| Total drug cost | $4,281 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | State University of New York - State College Optometry |
|---|---|
| Graduation year | 2002 |
| Medicare specialty | Optometry |
Medical group
- Southern California Permanente Medical GroupRedlands, CA · 11,293 clinicians
Industry payments (Open Payments)
- 2025$153.85 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alcon Vision LLC | $153.85 | 1 |
What the 2025 payments were for
- Food and Beverage$153.85 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 22 optometrists in San Dimas · All optometrists in California