Quick answers
- Does John D. Willer accept Medicare assignment?
- Yes. Medicare's clinician data says John D. Willer accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does John D. Willer see?
- In 2024, CMS data shows 1,369 Original Medicare patients and 4,357 services for John D. Willer. This counts Original Medicare only and measures volume, not quality.
- What is John D. Willer's NPI number?
- 1255383212. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for John D. Willer, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 1,369 |
|---|---|
| Services billed to Medicare | 4,357 |
| Different services or procedures | 37 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)472 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)419 services
- Imaging of retina (92134)339 services
- Measurement of corneal curvature and depth of eye (92136)312 services
- Injection, aflibercept hd, 1 mg (J0177)296 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure68%
- High cholesterol59%
- Arthritis41%
- Diabetes28%
- Ischemic heart disease19%
- Chronic kidney disease17%
Practice locations
Addresses where John D. Willer is enrolled with Medicare (CMS data updated October 2, 2026).
- 2025 Cascade Ave, Suite 101Hood River, OR 97031 (541) 386‑2402
- 301 Cherry Heights RdThe Dalles, OR 97058 (541) 296‑1101
Group practices
Medicare enrollment lists John D. Willer as a member of this group (CMS data updated October 2, 2026).
- Cascade Eye Centerllc3 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Oregon
Clinicians with the same Medicare primary specialty in Oregon — not a recommendation.
Other clinicians in Cascade Eye Centerllc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Ohio University, College Of Osteopathic Medicine |
| Graduation year | 1993 (33 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1255383212 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians