Michael A. Callahan, MD
NPI 1902892151ActiveIndividual· Ophthalmology· Birmingham, AL
Ophthalmology (MD) in Birmingham, Alabama, trained at University of Alabama School of Medicine (class of 1971). In 2024 Medicare paid $167,105 for 550 patients, and Part D covered 2,148 of their prescriptions, 71% of them generic. Abbvie Inc. was the largest of 4 companies reporting payments in 2025, $227.57 in all, mostly food and beverage.
Overview
| NPI | 1902892151 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 23, 2005 |
| Last updated in NPPES | Aug 19, 2020 |
| Certified by provider | Aug 19, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | 00006083 | AL |
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 (AL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 550 |
|---|---|
| Services billed | 2,333 across 65 procedure codes |
| Paid by Medicare | $167,105 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,148 · 2,831 30-day fills |
|---|---|
| Patients | 571 |
| Total drug cost | $106,820 |
| Generic share | 71% of claims |
Education and affiliations
| Medical school | University of Alabama School of Medicine |
|---|---|
| Graduation year | 1971 |
| Medicare specialty | Ophthalmology |
Medical group
- University of Alabama Ophthalmology Services FoundationVestavia, AL · 24 clinicians
Hospital affiliation
- University of Alabama HospitalBirmingham, AL
Industry payments (Open Payments)
- 2025$227.57 · 4 payments from 4 companies
- 2024$196.36 · 9 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $150.00 | 1 |
| Alcon Vision LLC | $30.98 | 1 |
| Sun Pharmaceutical Industries Inc. | $25.66 | 1 |
| Amgen Inc. | $20.93 | 1 |
What the 2025 payments were for
- Food and Beverage$227.57 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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