Quick answers
- Does Kateryna Nahornyak accept Medicare assignment?
- Yes. Medicare's clinician data says Kateryna Nahornyak 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 Kateryna Nahornyak see?
- In 2024, CMS data shows 28 Original Medicare patients and 138 services for Kateryna Nahornyak. This counts Original Medicare only and measures volume, not quality.
- What is Kateryna Nahornyak's NPI number?
- 1316760481. 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 Kateryna Nahornyak, 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 | 28 |
|---|---|
| Services billed to Medicare | 138 |
| Different services or procedures | 12 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Microfluid analysis of tears (83861)62 services
- Established patient problem focused exam of visual system (92012)25 services
- Photography of the retina (92250)14 services
- Imaging of retina (92134)13 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 pressure71%
- High cholesterol71%
- Arthritis39%
Practice locations
Addresses where Kateryna Nahornyak is enrolled with Medicare (CMS data updated October 2, 2026).
- 2450 Merrick RdBellmore, NY 11710 (516) 504‑2020
Group practices
Medicare enrollment lists Kateryna Nahornyak as a member of this group (CMS data updated October 2, 2026).
- Zench Eye Care and Ophthalmology PLLC4 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Bellmore
Clinicians with the same Medicare primary specialty in Bellmore, NY — not a recommendation.
Other clinicians in Zench Eye Care and Ophthalmology PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Optometry school | State University Of New York - State College Optometry |
| Graduation year | 2024 (2 years since optometry school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1316760481 |
| 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