Quick answers
- Does David J. Harris Iii accept Medicare assignment?
- Yes. Medicare's clinician data says David J. Harris Iii 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 David J. Harris Iii see?
- In 2024, CMS data shows 584 Original Medicare patients and 1,270 services for David J. Harris Iii. This counts Original Medicare only and measures volume, not quality.
- What is David J. Harris Iii's NPI number?
- 1588923429. 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 David J. Harris Iii, 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 | 584 |
|---|---|
| Services billed to Medicare | 1,270 |
| Different services or procedures | 32 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Established patient complete exam of visual system (92014)298 services
- Established patient problem focused exam of visual system (92012)230 services
- Imaging of retina (92134)151 services
- New patient complete exam of visual system (92004)116 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)63 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%
- Arthritis49%
- Diabetes34%
- Ischemic heart disease27%
- Anxiety24%
Practice locations
Addresses where David J. Harris Iii is enrolled with Medicare (CMS data updated October 2, 2026).
- 140 Capital Dr, Suite 120Knoxville, TN 37922 (865) 244‑2020
- 1932 Alcoa Hwy, Suite C255Knoxville, TN 37920 (865) 244‑2020
Group practices
Medicare enrollment lists David J. Harris Iii as a member of this group (CMS data updated October 2, 2026).
- University Eye Specialists, P.C.15 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Knoxville
Clinicians with the same Medicare primary specialty in Knoxville, TN — not a recommendation.
Other clinicians in University Eye Specialists, P.C.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | East Tennessee State University Quillen College Of Medicine |
| Graduation year | 2012 (14 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1588923429 |
| 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