Darren G. Gregory, MD
NPI 1144240094ActiveIndividual· Ophthalmology· Aurora, CO
Ophthalmology (MD) with University Physicians Incorporated, practicing in Aurora, Colorado. Their prescriptions cost Medicare Part D more than their services did: $273,234 for 735 claims, against $51,557 paid for services in 2024. Bausch & Lomb Americas Inc. was the largest of 3 companies reporting payments in 2025, $480.92 in all, mostly food and beverage. Lists University of Colorado Hospital Authority as a hospital affiliation.
Overview
| NPI | 1144240094 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jul 20, 2006 |
| Last updated in NPPES | Dec 4, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | 35514 | CO |
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 (CO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 346 |
|---|---|
| Services billed | 738 across 20 procedure codes |
| Paid by Medicare | $51,557 |
Part D prescriptions in 2024
| Prescriptions (claims) | 735 · 1,159 30-day fills |
|---|---|
| Patients | 198 |
| Total drug cost | $273,234 |
| Generic share | 40% of claims |
Education and affiliations
| Graduation year | 1995 |
|---|---|
| Medicare specialty | Ophthalmology |
Medical group
- University Physicians IncorporatedAurora, CO · 3,215 clinicians
Hospital affiliation
Industry payments (Open Payments)
- 2025$480.92 · 6 payments from 3 companies
- 2024$544.51 · 5 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bausch & Lomb Americas Inc. | $244.66 | 3 |
| Sun Pharmaceutical Industries Inc. | $118.18 | 2 |
| Alcon Vision LLC | $118.08 | 1 |
What the 2025 payments were for
- Food and Beverage$480.92 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Ophthalmology providers in Aurora
- 1720044746
- 1558894451
- 1215292677
- 1669438669
- 1659645802
- 1932054681
- 1467307298
- 1053401729
- 1508241209
- 1013974260
- 1891877981
- 1871523969