George Mamalis, O.D.
NPI 1275501967ActiveIndividual· Optometrist· Lakewood, CO
Optometrist (O.D.) in Lakewood, Colorado, trained at University of California - School of Optometry (class of 1986). Their prescriptions cost Medicare Part D more than their services did: $27,349 for 92 claims, against $5,414 paid for services in 2024. Alcon Vision LLC was the largest of 2 companies reporting payments in 2025, $157.77 in all, mostly food and beverage.
Overview
| NPI | 1275501967 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | O.D. |
| Sole proprietor | No |
| NPI issued | Mar 9, 2006 |
| Last updated in NPPES | Jul 9, 2020 |
| Certified by provider | Jul 9, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist Primary | 152W00000X | 1316 | CO |
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 - Optometry (CO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 46 |
|---|---|
| Services billed | 88 across 11 procedure codes |
| Paid by Medicare | $5,414 |
Part D prescriptions in 2024
| Prescriptions (claims) | 92 · 211 30-day fills |
|---|---|
| Patients | 30 |
| Total drug cost | $27,349 |
| Generic share | 73% of claims |
Education and affiliations
| Medical school | University of California - School of Optometry |
|---|---|
| Graduation year | 1986 |
| Medicare specialty | Optometry |
Industry payments (Open Payments)
- 2025$157.77 · 2 payments from 2 companies
- 2024$273.50 · 6 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alcon Vision LLC | $143.60 | 1 |
| Abb Con-Cise Optical Group LLC | $14.17 | 1 |
What the 2025 payments were for
- Food and Beverage$157.77 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 100 optometrists in Lakewood · All optometrists in Colorado