Dr. Ellen J. Davis, MD
Ophthalmology (Ophthalmology Physician)
- Medicare participating
At a glance
- Medical school
- Oregon Health Sciences University School of Medicine (2007)
- Years since graduation
- 19
- In the NPI registry since
- 2007
- Medicare patients seen, 2024
- 932
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
- 2007Medical school: Oregon Health Sciences University School of Medicine
- 2007Registered 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
OR license MD154086
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Ohsu Hospital and Clinics Portland, OR
Medical groups
- University Professional Services (1,724 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
- 932
- Services billed
- 2,294
- Patients’ average age
- 75
| Service | Times | Patients |
|---|---|---|
| Established patient complete exam of visual system | 667 | 632 |
| Imaging of optic nerve | 205 | 198 |
| Imaging of retina | 183 | 172 |
| Established patient office or other outpatient visit, 20-29 minutes | 156 | 130 |
| Exam of visual field with extended testing | 153 | 149 |
| Measurement of corneal curvature and depth of eye | 126 | 78 |
| Removal of cataract with insertion of prosthetic lens | 111 | 68 |
| New patient office or other outpatient visit, 45-59 minutes | 65 | 65 |
| New patient complete exam of visual system | 55 | 55 |
| Removal of recurring cataract in lens capsule using a laser | 47 | 36 |
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 Portland, OR | 700 |
| Prednisolone Acetate Other prescribers in Portland, OR | 317 |
| Diclofenac Sodium Other prescribers in Portland, OR | 272 |
| Dorzolamide-Timolol (dorzolamide hcl/timolol maleat) Other prescribers in Portland, OR | 179 |
| Timolol Maleate Other prescribers in Portland, OR | 126 |
| Dorzolamide Hcl Other prescribers in Portland, OR | 54 |
| Cyclosporine Other prescribers in Portland, OR | 50 |
| Brimonidine Tartrate Other prescribers in Portland, OR | 48 |
| Restasis (cyclosporine) Other prescribers in Portland, OR | 42 |
| Doxycycline Monohydrate Other prescribers in Portland, OR | 29 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.