Ann Zerella McColgin, M.D.
NPI 1982799227ActiveIndividual· Ophthalmology· Tucson, AZ
Ophthalmology (M.D.) in Tucson, Arizona, trained at Georgia College of Eclectric Medicine and Surgery (class of 1994). Their prescriptions cost Medicare Part D more than their services did: $738,967 for 1,651 claims, against $269,985 paid for services in 2024. Alcon Vision LLC was the largest of 4 companies reporting payments in 2025, $685.71 in all, mostly food and beverage.
Overview
| NPI | 1982799227 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Oct 3, 2006 |
| Last updated in NPPES | Nov 6, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | 30882 | AZ |
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 (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 574 |
|---|---|
| Services billed | 2,350 across 44 procedure codes |
| Paid by Medicare | $269,985 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,651 · 2,479 30-day fills |
|---|---|
| Patients | 434 |
| Total drug cost | $738,967 |
| Generic share | 59% of claims |
Education and affiliations
| Medical school | Georgia College of Eclectric Medicine and Surgery |
|---|---|
| Graduation year | 1994 |
| Medicare specialty | Ophthalmology |
Medical group
- Cornea Associates, PLLCTucson, AZ · 6 clinicians
Industry payments (Open Payments)
- 2025$685.71 · 7 payments from 4 companies
- 2024$471.09 · 5 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alcon Vision LLC | $296.21 | 2 |
| Tarsus Pharmaceuticals, Inc. | $150.00 | 1 |
| Glaukos Corporation | $139.51 | 3 |
| Mallinckrodt Hospital Products Inc. | $99.99 | 1 |
What the 2025 payments were for
- Food and Beverage$585.72 · 6 payments
- Education$99.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 133 ophthalmologists in Tucson · All ophthalmologists in Arizona