Quick answers
- Does Donald M. Downer accept Medicare assignment?
- Yes. Medicare's clinician data says Donald M. Downer 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 Donald M. Downer see?
- In 2024, CMS data shows 1,455 Original Medicare patients and 6,547 services for Donald M. Downer. This counts Original Medicare only and measures volume, not quality.
- What is Donald M. Downer's NPI number?
- 1588777833. 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 Donald M. Downer, 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 | 1,455 |
|---|---|
| Services billed to Medicare | 6,547 |
| Different services or procedures | 56 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)2,449 services
- Photography of the retina (92250)653 services
- Measurement of corneal curvature and depth of eye (92136)482 services
- Removal of cataract with insertion of prosthetic lens (66984)396 services
- Closure of tear duct opening using plug (68761)373 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 pressure75%
- High cholesterol75%
- Arthritis52%
- Diabetes32%
- Ischemic heart disease32%
- Chronic kidney disease26%
Practice locations
Addresses where Donald M. Downer is enrolled with Medicare (CMS data updated October 2, 2026).
- 2023 Professional Ctr DrOrange Park, FL 32073 (904) 272‑2020
Group practices
Medicare enrollment lists Donald M. Downer as a member of this group (CMS data updated October 2, 2026).
- Harris, Wilcox and Donovan PA18 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Orange Park
Clinicians with the same Medicare primary specialty in Orange Park, FL — not a recommendation.
Other clinicians in Harris, Wilcox and Donovan PA
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Florida College Of Medicine |
| Graduation year | 2002 (24 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1588777833 |
| 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