Quick answers
- Does Ivanna S. Grynyk accept Medicare assignment?
- Yes. Medicare's clinician data says Ivanna S. Grynyk 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 Ivanna S. Grynyk see?
- In 2024, CMS data shows 683 Original Medicare patients and 1,305 services for Ivanna S. Grynyk. This counts Original Medicare only and measures volume, not quality.
- What is Ivanna S. Grynyk's NPI number?
- 1194391243. 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 Ivanna S. Grynyk, 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 | 683 |
|---|---|
| Services billed to Medicare | 1,305 |
| Different services or procedures | 26 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Established patient complete exam of visual system (92014)320 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)152 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)146 services
- Photography of the retina (92250)105 services
- Exam of visual field with extended testing (92083)104 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 cholesterol73%
- High blood pressure70%
- Arthritis33%
- Diabetes32%
- Ischemic heart disease22%
- Anxiety22%
Practice locations
Addresses where Ivanna S. Grynyk is enrolled with Medicare (CMS data updated October 2, 2026).
- 1460 Victory BlvdStaten Island, NY 10301 (718) 447‑0022
Group practices
Medicare enrollment lists Ivanna S. Grynyk as a member of this group (CMS data updated October 2, 2026).
- Ophthalmology Associates of Staten Island PC6 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Staten Island
Clinicians with the same Medicare primary specialty in Staten Island, NY — not a recommendation.
Other clinicians in Ophthalmology Associates of Staten Island PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Graduation year | 2022 (4 years since optometry school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1194391243 |
| 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