Vitaliy Zak, M.D.
Retina Specialist (Ophthalmology) Physician · Palm Desert, CA
Vitaliy Zak, M.D. is a retina specialist (ophthalmology) physician with a practice address in Palm Desert, California, and NPI 1669566535, issued on Oct 3, 2006. Check the license (California C193067, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Vitaliy Zak
- Credential
- M.D.
- Primary taxonomy
- Retina Specialist (Ophthalmology) Physician 207WX0107X
- License numbers
- C193067 CA
S6335 TX
MD00044090 WA
Self-reported in NPPES; status is on the state search - Practice location
- 44139 Monterey Ave Ste A, Palm Desert, CA 92260
- Phone
- (760) 469-5195
- Enumerated
- Oct 3, 2006
- Record last updated
- May 22, 2026
- Medicaid IDs
- 8408023 WA
1669566535 CA - Medicare enrollment
- Enrolled (PECOS I20240202001922); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest retina specialist (ophthalmology) physician records → All 205 in California → Look up another NPI →
Also registered at 44139 Monterey Ave Ste A
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rudolph Alanis, O.D.Optometrist1770612699
- James Belville, MDOphthalmology Physician1477524239
- Rebecca Chait, M.D.Ophthalmology Physician1588083547
- Alexander Chop, PH.D. M.D.Ophthalmology Physician1952368920
- Jonathan Dizon, O.D.Optometrist1629578836
- Ralph Hester, M.D.Ophthalmology Physician1215904974
Verify Vitaliy Zak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C193067Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.2 times the Medicare Part D claims of the average retina specialist (ophthalmology) physician in 2024
1,335 Medicare Part D claims for 426 beneficiaries, against an average of 620 among the 1,449 providers of this specialty who prescribed in Part D. Brand-name drugs were 31% of claims.
Most prescribed
- Latanoprost266 claims
- Prednisolone Acetate264 claims
- Ketorolac Tromethamine210 claims
- Ofloxacin121 claims
- Dorzolamide-Timolol98 claims
- Brimonidine Tartrate89 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $696.05
9 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. The 1,253 providers of this specialty with any payment received $7,667.49 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Retina Institute OF California Medical Group, A California Medical ParPalm Desert, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Vitaliy Zak among 205 retina specialist (ophthalmology) physician records in California
Vitaliy Zak, M.D. is one of 205 retina specialist (ophthalmology) physician records with a practice address in California. 98% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 65% newer
- In a Medicare fileYes · 98% of these records are
- In the CMS Doctors and Clinicians fileYes · 92% of these records are
- Graduated1995 · median 2007 among the 189 with a school on file
- Record last updated2026 · 37% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207WX0107X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Retina Specialist (Ophthalmology) Physician providers in California
There are 205 retina specialist (ophthalmology) physician records in California.
All 205 in California → Every provider in Palm Desert → Retina Specialist (Ophthalmology) Physician nationwide →
The 8 retina specialist (ophthalmology) physician records with the nearest ZIP codes
- Michael Samuel, M.D.Palm Desert, CA 922601730175670
- Harris Ahmed, DO, MPHPalm Desert, CA 922111700413317
- Clement Chan, M.D.Palm Desert, CA 922111336131408
- Steven Lin, M.D.Palm Desert, CA 922111457343568
- Amr Azzam, MD, PHDLoma Linda, CA 923501013898774
- Bailey Shen, MDLoma Linda, CA 923541316350739
- Paymohn Mahdavi, M.D.Redlands, CA 923731295095669
- Eric Chin, M.D.Redlands, CA 923741043442809
Common questions
What is Vitaliy Zak, M.D.'s NPI number?
Vitaliy Zak, M.D.'s National Provider Identifier (NPI) is 1669566535, issued on Oct 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Vitaliy Zak, M.D. located?
The NPPES record lists a practice address at 44139 Monterey Ave Ste A, Palm Desert, CA, 92260. Phone: (760) 469-5195. Providers update this record themselves, so call before visiting.
How can I verify Vitaliy Zak, M.D.'s license?
NPPES lists California license number C193067, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Vitaliy Zak, M.D. prescribe under Medicare Part D?
In 2024, Vitaliy Zak, M.D. had 1,335 Medicare Part D claims for 426 beneficiaries; the average among retina specialist (ophthalmology) physician prescribers was 620. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.