Elizabeth Chen Chiang, MD, PHD
NPI 1336464882ActiveIndividual· Ophthalmology· Sioux Falls, SD
Ophthalmology (MD, PHD) with Summa Physicians LLC, practicing in Sioux Falls, South Dakota. 176 Medicare patients in 2024, $63,929 paid; nearly all of their 174 Part D prescriptions were generic (90%). Amgen Inc. was the largest of 3 companies reporting payments in 2025, $699.92 in all, mostly food and beverage. Lists Summa Health System as a hospital affiliation.
Overview
| NPI | 1336464882 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD, PHD |
| Sole proprietor | No |
| NPI issued | Mar 28, 2010 |
| Last updated in NPPES | Oct 28, 2024 |
| Certified by provider | Oct 4, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | 15656 | SD |
| Ophthalmology | 207W00000X | 0101259867 | VA |
| Ophthalmology | 207W00000X | 036161362 | IL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Ophthalmology (IL); Practitioner - Ophthalmology (OH); Practitioner - Ophthalmology (SD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 176 |
|---|---|
| Services billed | 370 across 37 procedure codes |
| Paid by Medicare | $63,929 |
Part D prescriptions in 2024
| Prescriptions (claims) | 174 · 181 30-day fills |
|---|---|
| Patients | 126 |
| Total drug cost | $4,552 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 2010 |
|---|---|
| Medicare specialty | Ophthalmology |
Medical group
- Summa Physicians LLCAkron, OH · 671 clinicians
Hospital affiliation
- Summa Health SystemAkron, OH
Industry payments (Open Payments)
- 2025$699.92 · 8 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $671.07 | 6 |
| Tarsus Pharmaceuticals, Inc. | $14.92 | 1 |
| Harrow Eye, LLC | $13.93 | 1 |
What the 2025 payments were for
- Food and Beverage$699.92 · 8 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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