Kathy I. Hwang, M.D.
NPI 1548263817ActiveIndividual· Ophthalmology· Brookfield, WI
Ophthalmology (M.D.) in Brookfield, Wisconsin, trained at Harvard Medical School (class of 1990). Their prescriptions cost Medicare Part D more than their services did: $121,919 for 750 claims, against $78,729 paid for services in 2024. Genentech, Inc. was the largest of 3 companies reporting payments in 2025, $155.53 in all, mostly food and beverage.
Overview
| NPI | 1548263817 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | May 31, 2005 |
| Last updated in NPPES | Sep 16, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | 53206-020 | WI |
| Ophthalmology | 207W00000X | MD30189 | DC |
| Ophthalmology | 207W00000X | D0051950 | MD |
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 | 631 |
|---|---|
| Services billed | 1,106 across 26 procedure codes |
| Paid by Medicare | $78,729 |
Part D prescriptions in 2024
| Prescriptions (claims) | 750 · 1,650 30-day fills |
|---|---|
| Patients | 247 |
| Total drug cost | $121,919 |
| Generic share | 50% of claims |
Education and affiliations
| Medical school | Harvard Medical School |
|---|---|
| Graduation year | 1990 |
| Medicare specialty | Ophthalmology |
Medical group
- Michael J Schermer MD IncSacramento, CA · 4 clinicians
Industry payments (Open Payments)
- 2025$155.53 · 3 payments from 3 companies
- 2024$712.74 · 9 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genentech, Inc. | $121.74 | 1 |
| Dompe US, Inc. | $19.76 | 1 |
| Biotissue Holdings Inc. | $14.03 | 1 |
What the 2025 payments were for
- Food and Beverage$155.53 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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