Dr. Brian M. Marek, M.D.
Ophthalmology (Ophthalmology Physician)
- Medicare participating
At a glance
- Medical school
- Indiana University School of Medicine (2013)
- Years since graduation
- 13
- In the NPI registry since
- 2013
- Medicare patients seen, 2024
- 935
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. What an NPI is
Education and training
- 2013Medical school: Indiana University School of Medicine
- 2013Registered with an NPI (national billing number; not a license date)
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
OH license 35.131370
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Mercy Health - West Hospital Cincinnati, OH
Medical groups
- Cei Physicians Psc, LLC (158 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
- 935
- Services billed
- 2,585
- Patients’ average age
- 75
| Service | Times | Patients |
|---|---|---|
| Established patient complete exam of visual system | 441 | 432 |
| Established patient office or other outpatient visit, 20-29 minutes | 329 | 270 |
| Established patient office or other outpatient visit, 30-39 minutes | 305 | 230 |
| Imaging of retina | 247 | 219 |
| Exam of visual field with extended testing | 202 | 170 |
| Measurement of corneal curvature and depth of eye | 182 | 117 |
| Imaging of optic nerve | 152 | 144 |
| Removal of cataract with insertion of prosthetic lens | 140 | 87 |
| New patient office or other outpatient visit, 45-59 minutes | 67 | 67 |
| Removal of recurring cataract in lens capsule using a laser | 59 | 46 |
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 |
|---|---|
| Latanoprost Other prescribers in Blue Ash, OH | 733 |
| Prednisolone Acetate Other prescribers in Blue Ash, OH | 428 |
| Moxifloxacin (moxifloxacin hcl) Other prescribers in Blue Ash, OH | 290 |
| Brimonidine Tartrate Other prescribers in Blue Ash, OH | 256 |
| Timolol Maleate Other prescribers in Blue Ash, OH | 229 |
| Restasis (cyclosporine) Other prescribers in Blue Ash, OH | 150 |
| Dorzolamide-Timolol (dorzolamide hcl/timolol maleat) Other prescribers in Blue Ash, OH | 149 |
| Prolensa (bromfenac sodium) | 119 |
| Dorzolamide Hcl Other prescribers in Blue Ash, OH | 95 |
| Erythromycin (erythromycin base) Other prescribers in Blue Ash, OH | 71 |
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, 12 companies reported 21 payments worth $3,586 in total to this clinician.
| Haag-streit USA, Inc. | $3,000 |
|---|---|
| Johnson & Johnson Surgical Vision, Inc. | $168 |
| AbbVie Inc. | $98.01 |
| Alcon Vision LLC | $95.16 |
| Bausch & Lomb Americas Inc. | $66.16 |
| Astellas Pharma US Inc | $30.56 |
| Ani Pharmaceuticals, Inc. | $28.05 |
| Regeneron Healthcare Solutions, Inc. | $24.51 |
| Consulting Fee | $3,000 |
|---|---|
| Food and Beverage | $586 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Haag-streit USA, Inc. Dec 18, 2025 | Consulting Fee | $3,000 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
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.