Quick answers
- Does Courtney I. Diaz accept Medicare assignment?
- Yes. Medicare's clinician data says Courtney I. Diaz 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 Courtney I. Diaz see?
- In 2024, CMS data shows 154 Original Medicare patients and 1,521 services for Courtney I. Diaz. This counts Original Medicare only and measures volume, not quality.
- What is Courtney I. Diaz's NPI number?
- 1760863047. 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 Courtney I. Diaz, 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 | 154 |
|---|---|
| Services billed to Medicare | 1,521 |
| Different services or procedures | 24 |
| Participating Medicare provider | Yes |
| Average age of these patients | 70 |
Most frequent services
- Established patient complete exam of visual system (92014)102 services
- Evaluation of eye adaptation to light and dark with interpretation and report (92284)78 services
- Exam of visual field with extended testing (92083)68 services
- Photography of the retina (92250)56 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)38 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 cholesterol63%
- Arthritis39%
- Diabetes27%
- Depression27%
- Anxiety23%
Practice locations
Addresses where Courtney I. Diaz is enrolled with Medicare (CMS data updated October 2, 2026).
- 1684 Venture Dr, Suite AMount Vernon, OH 43050 (740) 393‑6010
- 784 E Main St, Suite DLancaster, OH 43130 (740) 654‑9909
- 926 N 21st StNewark, OH 43055 (740) 366‑7341
Group practices
Medicare enrollment lists Courtney I. Diaz as a member of these groups (CMS data updated October 2, 2026).
- Primary Vision Care of Mount Vernon Inc3 clinicians in the group
- Mark D Henry Od Inc2 clinicians in the group
- Primary Vision Care Inc2 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Mount Vernon
Clinicians with the same Medicare primary specialty in Mount Vernon, OH — not a recommendation.
Other clinicians in Primary Vision Care of Mount Vernon Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Graduation year | 2015 (11 years since optometry school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1760863047 |
| 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