Aimee C. Chang, MD
NPI 1730689340ActiveIndividual· Ophthalmology, Glaucoma Specialist· Freedom, CA
Ophthalmology, Glaucoma Specialist (MD) in Freedom, California, trained at Icahn School of Medicine at Mount Sinai (class of 2018). In 2024 Medicare paid $429,941 for 1,278 patients, and Part D covered 2,403 of their prescriptions, 59% of them generic. Microsurgical Technology, Inc. was the largest of 10 companies reporting payments in 2025, $1,616 in all, mostly charitable contributions.
Overview
| NPI | 1730689340 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Feb 20, 2018 |
| Last updated in NPPES | Jun 20, 2024 |
| Certified by provider | Jun 20, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology, Glaucoma Specialist Primary | 207WX0009X | A165520 | CA |
| Ophthalmology | 207W00000X | 291480 | MA |
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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,278 |
|---|---|
| Services billed | 5,524 across 47 procedure codes |
| Paid by Medicare | $429,941 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,403 · 4,748 30-day fills |
|---|---|
| Patients | 666 |
| Total drug cost | $250,510 |
| Generic share | 59% of claims |
Education and affiliations
| Medical school | Icahn School of Medicine at Mount Sinai |
|---|---|
| Graduation year | 2018 |
| Medicare specialty | Ophthalmology |
| Telehealth | Offers telehealth |
Medical group
- Spectrum Eye Physicians A Medical CorporationCupertino, CA · 15 clinicians
Industry payments (Open Payments)
- 2025$1,616 · 23 payments from 10 companies
- 2024$883.53 · 26 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Microsurgical Technology, Inc. | $900.96 | 1 |
| Glaukos Corporation | $215.88 | 3 |
| Abbvie Inc. | $204.99 | 5 |
| Thea Pharma Inc. | $105.80 | 5 |
| Alcon Vision LLC | $63.85 | 3 |
What the 2025 payments were for
- Charitable Contribution$900.96 · 1 payment
- Food and Beverage$715.52 · 22 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records