Changyow Kwan
NPI 1588110423ActiveIndividual· Ophthalmology· Irvine, CA
Ophthalmology with Regional Eyecare Services PC, practicing in Irvine, California. Their prescriptions cost Medicare Part D more than their services did: $108,744 for 602 claims, against $4,326 paid for services in 2024. Carl Zeiss Meditec USA, Inc. was the largest of 4 companies reporting payments in 2024, $390.40 in all, mostly food and beverage.
Overview
| NPI | 1588110423 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Aug 31, 2016 |
| Last updated in NPPES | Jul 15, 2024 |
| Certified by provider | Jul 15, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | A187362 | 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 - Ophthalmology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 36 |
|---|---|
| Services billed | 44 across 16 procedure codes |
| Paid by Medicare | $4,326 |
Part D prescriptions in 2024
| Prescriptions (claims) | 602 · 1,098 30-day fills |
|---|---|
| Patients | 291 |
| Total drug cost | $108,744 |
| Generic share | 53% of claims |
Education and affiliations
| Graduation year | 2020 |
|---|---|
| Medicare specialty | Ophthalmology |
Medical group
- Regional Eyecare Services PCMonterey Park, CA · 11 clinicians
Industry payments (Open Payments)
- 2024$390.40 · 8 payments from 4 companies
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Carl Zeiss Meditec USA, Inc. | $167.73 | 2 |
| Alcon Vision LLC | $151.41 | 3 |
| Glaukos Corporation | $46.30 | 2 |
| Bausch & Lomb Americas Inc. | $24.96 | 1 |
What the 2024 payments were for
- Food and Beverage$375.94 · 7 payments
- Travel and Lodging$14.46 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 48 ophthalmologists in Irvine · All ophthalmologists in California