Karen Chen, MD, MPHIL
NPI 1376076018ActiveIndividual· Ophthalmology· Honolulu, HI
Ophthalmology (MD, MPHIL) in Honolulu, Hawaii, trained at Stanford University School of Medicine (class of 2017). Their prescriptions cost Medicare Part D more than their services did: $123,416 for 1,773 claims, against $6,784 paid for services in 2024. Abbvie Inc. was the largest of 3 companies reporting payments in 2025, $437.00 in all, mostly food and beverage.
Overview
| NPI | 1376076018 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD, MPHIL |
| Sole proprietor | Yes |
| NPI issued | Apr 10, 2017 |
| Last updated in NPPES | Mar 23, 2023 |
| Certified by provider | Mar 23, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | 287665 | 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); Practitioner - Ophthalmology (HI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 15 |
|---|---|
| Services billed | 62 across 13 procedure codes |
| Paid by Medicare | $6,784 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,773 · 3,591 30-day fills |
|---|---|
| Patients | 496 |
| Total drug cost | $123,416 |
| Generic share | 79% of claims |
Education and affiliations
| Medical school | Stanford University School of Medicine |
|---|---|
| Graduation year | 2017 |
| Medicare specialty | Ophthalmology |
Medical group
- Permanente Medical Group IncOakland, CA · 10,996 clinicians
Industry payments (Open Payments)
- 2025$437.00 · 7 payments from 3 companies
- 2024$584.94 · 10 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $168.53 | 3 |
| Genentech, Inc. | $143.50 | 1 |
| Alcon Vision LLC | $124.97 | 3 |
What the 2025 payments were for
- Food and Beverage$437.00 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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