Dr. John O. Mason III, MD
Ophthalmology (Ophthalmology Physician)
- Medicare participating
At a glance
- Medical school
- University of Alabama School of Medicine (1990)
- Years since graduation
- 36
- In the NPI registry since
- 2005
- Medicare patients seen, 2024
- 1,223
Licensed in Alabama since 1991, according to the Alabama Board of Medical Examiners and Medical Licensure Commission. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 1990Medical school: University of Alabama School of Medicine
- 2005Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Ophthalmology Physician primary
AL license 15867 (first issued 1991; active)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- University of Alabama Hospital Birmingham, AL
Medical groups
- Retina Consultants of Alabama P.c. (11 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 1,223
- Services billed
- 8,526
- Patients’ average age
- 76
| Service | Times | Patients |
|---|---|---|
| Imaging of retina | 2,857 | 1,226 |
| Injection, bevacizumab, 10 mg | 1,618 | 336 |
| Injection of drug into eye | 1,383 | 363 |
| Destruction of growth of retina using a laser | 467 | 278 |
| Established patient office or other outpatient visit, 20-29 minutes | 458 | 400 |
| Established patient office or other outpatient visit, 30-39 minutes | 457 | 386 |
| Injection, aflibercept, 1 mg | 446 | 105 |
| New patient office or other outpatient visit, 45-59 minutes | 258 | 258 |
| Established patient office or other outpatient visit, 10-19 minutes | 163 | 145 |
| Destruction of leaking blood vessels of retina using laser | 125 | 85 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Ketorolac Tromethamine Other prescribers in Birmingham, AL | 422 |
| Neomycin-Polymyxin-Dexameth (neomycin/polymyxin b/dexametha) Other prescribers in Birmingham, AL | 254 |
| Dorzolamide-Timolol (dorzolamide hcl/timolol maleat) Other prescribers in Birmingham, AL | 201 |
| Prednisolone Acetate Other prescribers in Birmingham, AL | 159 |
| Latanoprost Other prescribers in Birmingham, AL | 135 |
| Timolol Maleate Other prescribers in Birmingham, AL | 71 |
| Bromfenac Sodium | 69 |
| Brimonidine Tartrate Other prescribers in Birmingham, AL | 69 |
| Dorzolamide Hcl Other prescribers in Birmingham, AL | 46 |
| Prolensa (bromfenac sodium) | 21 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 3 companies reported 3 payments worth $223 in total to this clinician.
| Biotissue Holdings Inc. | $118 |
|---|---|
| Sight Sciences, Inc. | $82.09 |
| Alcon Vision LLC | $22.20 |
| Food and Beverage | $223 |
|---|
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.