Quick answers
- Does Vitaliy V. Zak accept Medicare assignment?
- Yes. Medicare's clinician data says Vitaliy V. Zak 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 Vitaliy V. Zak see?
- In 2024, CMS data shows 646 Original Medicare patients and 6,684 services for Vitaliy V. Zak. This counts Original Medicare only and measures volume, not quality.
- What is Vitaliy V. Zak's NPI number?
- 1669566535. 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 Vitaliy V. Zak, 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 | 646 |
|---|---|
| Services billed to Medicare | 6,684 |
| Different services or procedures | 66 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Injection, faricimab-svoa, 0.1 mg (J2777)2,640 services
- Imaging of retina (92134)823 services
- Injection of drug into eye (67028)416 services
- Established patient complete exam of visual system (92014)305 services
- Injection, ranibizumab-eqrn (cimerli), biosimilar, 0.1 mg (Q5128)230 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%
- Diabetes53%
- Arthritis49%
- Chronic kidney disease39%
- Ischemic heart disease33%
Practice locations
Addresses where Vitaliy V. Zak is enrolled with Medicare (CMS data updated October 2, 2026).
- 1801 E Tahquitz Canyon Way, Suite 200Palm Springs, CA 92262 (760) 327‑2700
- 44139 Monterey Ave, Suite APalm Desert, CA 92260 (760) 779‑0800
Group practices
Medicare enrollment lists Vitaliy V. Zak as a member of this group (CMS data updated October 2, 2026).
- Retina Institute of California Medical Group, a California Medical Par77 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Palm Springs
Clinicians with the same Medicare primary specialty in Palm Springs, CA — not a recommendation.
Other clinicians in Retina Institute of California Medical Group, a California Medical Par
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1995 (31 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1669566535 |
| 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