Daniel Ahn, MD
NPI 1184645558ActiveIndividual· Ophthalmology· Calhoun, GA
Ophthalmology (MD) in Calhoun, Georgia, trained at University of California, San Diego School of Medicine (class of 1991). In 2024 Medicare paid $224,001 for 931 patients, and Part D covered 2,006 of their prescriptions, 76% of them generic. Alcon Vision LLC was the largest of 2 companies reporting payments in 2025, $242.95 in all, mostly food and beverage.
Overview
| NPI | 1184645558 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 21, 2006 |
| Last updated in NPPES | Dec 12, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | 040852 | GA |
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 (GA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 931 |
|---|---|
| Services billed | 3,303 across 22 procedure codes |
| Paid by Medicare | $224,001 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,006 · 2,778 30-day fills |
|---|---|
| Patients | 639 |
| Total drug cost | $209,002 |
| Generic share | 76% of claims |
Education and affiliations
| Medical school | University of California, San Diego School of Medicine |
|---|---|
| Graduation year | 1991 |
| Medicare specialty | Ophthalmology |
Medical group
- Adventist Health System Georgia IncAdairsville, GA · 256 clinicians
Hospital affiliation
- Adventhealth GordonCalhoun, GA
Industry payments (Open Payments)
- 2025$242.95 · 10 payments from 2 companies
- 2024$177.76 · 7 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alcon Vision LLC | $180.78 | 8 |
| Abbvie Inc. | $62.17 | 2 |
What the 2025 payments were for
- Food and Beverage$242.95 · 10 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records