Zachary A. Koretz, MD
NPI 1487157269ActiveIndividual· Ophthalmology, Retina Specialist· Aurora, CO
Ophthalmology, Retina Specialist (MD) in Aurora, Colorado, trained at Tulane University School of Medicine (class of 2018). In 2024 Medicare paid $360,730 for 226 patients, and Part D covered 162 of their prescriptions, 71% of them generic. Astellas Pharma US Inc was the largest of 10 companies reporting payments in 2025, $1,626 in all, mostly food and beverage.
Overview
| NPI | 1487157269 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 17, 2018 |
| Last updated in NPPES | Oct 5, 2025 |
| Certified by provider | Oct 5, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology, Retina Specialist Primary | 207WX0107X | DR.0073981 | CO |
| Ophthalmology | 207W00000X | DR.0073981 | CO |
| Ophthalmology | 207W00000X | A180519 | CA |
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 (CO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 226 |
|---|---|
| Services billed | 9,245 across 48 procedure codes |
| Paid by Medicare | $360,730 |
Part D prescriptions in 2024
| Prescriptions (claims) | 162 · 252 30-day fills |
|---|---|
| Patients | 83 |
| Total drug cost | $7,015 |
| Generic share | 71% of claims |
Education and affiliations
| Medical school | Tulane University School of Medicine |
|---|---|
| Graduation year | 2018 |
| Medicare specialty | Ophthalmology |
Medical group
- Rsc Aurora, PLLCAurora, CO · 4 clinicians
Industry payments (Open Payments)
- 2025$1,626 · 50 payments from 10 companies
- 2024$2,082 · 12 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astellas Pharma US Inc | $462.68 | 8 |
| Genentech USA, Inc. | $305.93 | 9 |
| Abbvie Inc. | $276.18 | 7 |
| Mallinckrodt Hospital Products Inc. | $171.15 | 7 |
| Harrow Eye, LLC | $151.57 | 9 |
What the 2025 payments were for
- Food and Beverage$1,578 · 49 payments
- Entertainment$48.11 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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