Marcus Juen Yue Ko, M.D.
NPI 1235302183ActiveIndividual· Ophthalmology, Ophthalmic Plastic and Reconstructive Surgery· Honolulu, HI
Ophthalmology, Ophthalmic Plastic and Reconstructive Surgery (M.D.) in Honolulu, Hawaii, trained at Harvard Medical School (class of 2004). In 2024 Medicare paid $268,636 for 638 patients, and Part D covered 752 of their prescriptions, 81% of them generic. Amgen Inc. was the largest of 2 companies reporting payments in 2025, $272.75 in all, mostly food and beverage.
Overview
| NPI | 1235302183 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 10, 2008 |
| Last updated in NPPES | Sep 18, 2026 |
| Certified by provider | Sep 18, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology, Ophthalmic Plastic and Reconstructive Surgery Primary | 207WX0200X | 15092 | NV |
| Ophthalmology | 207W00000X | ME 112756 | FL |
| Ophthalmology | 207W00000X | A104124 | 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 (HI); Practitioner - Ophthalmology (NV) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 638 |
|---|---|
| Services billed | 2,947 across 63 procedure codes |
| Paid by Medicare | $268,636 |
Part D prescriptions in 2024
| Prescriptions (claims) | 752 · 767 30-day fills |
|---|---|
| Patients | 392 |
| Total drug cost | $7,329 |
| Generic share | 81% of claims |
Education and affiliations
| Medical school | Harvard Medical School |
|---|---|
| Graduation year | 2004 |
| Medicare specialty | Ophthalmology |
| Telehealth | Offers telehealth |
Medical groups
- Marcus J Ko MD PLLCReno, NV · 3 clinicians
- Timothy F. McDevitt, M.D. IncHonolulu, HI · 3 clinicians
Hospital affiliations
- Barton Memorial HospitalSouth Lake Tahoe, CA
- Carson Tahoe Regional Medical CenterCarson City, NV
- Carson Valley HealthGardnerville, NV
- Renown Regional Medical CenterReno, NV
- Tahoe Forest HospitalTruckee, CA
Industry payments (Open Payments)
- 2025$272.75 · 6 payments from 2 companies
- 2024$54.16 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $244.81 | 5 |
| Tarsus Pharmaceuticals, Inc. | $27.94 | 1 |
What the 2025 payments were for
- Food and Beverage$272.75 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records