Dr. Mark A. Terry, MD
Ophthalmology (Cornea and External Diseases Specialist Physician)
- Medicare participating
At a glance
- Medical school
- Saint Louis University School of Medicine (1979)
- Years since graduation
- 47
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 183
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
- 1979Medical school: Saint Louis University School of Medicine
- 2006Registered 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
-
Cornea and External Diseases Specialist Physician primary
OR license MD17016 -
Ophthalmology Physician
OR license MD17016
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Legacy Good Samaritan Medical Center Portland, OR
Medical groups
- Legacy Good Samaritan Hospital and Medical Center (191 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
- 183
- Services billed
- 998
- Patients’ average age
- 76
| Service | Times | Patients |
|---|---|---|
| Ct scan of cornea | 299 | 248 |
| Established patient office or other outpatient visit, 30-39 minutes | 266 | 238 |
| Imaging of front third of eye using a special microscope | 97 | 86 |
| Imaging of retina | 92 | 83 |
| Ultrasound scan to determine eye length and lens power | 71 | 37 |
| Transplantation of outer layer of corneal tissue | 57 | 40 |
| Imaging of front third of eye | 56 | 42 |
| New patient office or other outpatient visit, 45-59 minutes | 52 | 52 |
| Removal of cataract with insertion of prosthetic lens | 45 | 28 |
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 |
|---|---|
| Prednisolone Acetate Other prescribers in Portland, OR | 431 |
| Fluorometholone Other prescribers in Portland, OR | 181 |
| Ofloxacin Other prescribers in Portland, OR | 108 |
| Acyclovir Other prescribers in Portland, OR | 54 |
| Valacyclovir (valacyclovir hcl) Other prescribers in Portland, OR | 49 |
| Doxycycline Monohydrate Other prescribers in Portland, OR | 33 |
| Doxycycline Hyclate Other prescribers in Portland, OR | 33 |
| Dorzolamide-Timolol (dorzolamide hcl/timolol maleat) Other prescribers in Portland, OR | 31 |
| Erythromycin (erythromycin base) Other prescribers in Portland, OR | 20 |
| Loteprednol Etabonate | 18 |
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, 2 companies reported 6 payments worth $14,298 in total to this clinician.
| Bausch & Lomb Americas Inc. | $14,207 |
|---|---|
| Biotissue Holdings Inc. | $90.42 |
| Royalty or License | $14,207 |
|---|---|
| Food and Beverage | $90.42 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Bausch & Lomb Americas Inc. Apr 30, 2025 | Royalty or License OPHTHALMIC INSTRUMENTS · Ophthalmology | $4,043 |
| Bausch & Lomb Americas Inc. Oct 30, 2025 | Royalty or License OPHTHALMIC INSTRUMENTS · Ophthalmology | $3,936 |
| Bausch & Lomb Americas Inc. Jul 30, 2025 | Royalty or License OPHTHALMIC INSTRUMENTS · Ophthalmology | $3,628 |
| Bausch & Lomb Americas Inc. Jan 30, 2025 | Royalty or License OPHTHALMIC INSTRUMENTS · Ophthalmology | $2,601 |
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.