Jonathan Winarko, MD
Ophthalmology Physician · Irvine, CA
Jonathan Winarko, MD is an ophthalmology physician with a practice address in Irvine, California, and NPI 1750565032, issued on Dec 23, 2007. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jonathan Winarko
- Credential
- MD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- Practice location
- 118 Med Surge I, Irvine, CA 92697
- Phone
- (949) 824-0158
- Enumerated
- Dec 23, 2007
- Record last updated
- Nov 30, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (949) 824-4015
- Medicare enrollment
- Enrolled (PECOS I20100721000362); accepts Medicare assignment
- Medical or professional school
- University Of Southern California Keck School Of Medicine, 2006
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Also registered at 118 Med Surge I
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Matthew Wade, M.D.Cornea and External Diseases Specialist Physician1750544755
Verify Jonathan Winarko in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.0 times the Medicare Part D claims of the average ophthalmology physician in 2024
6,022 Medicare Part D claims for 1,128 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Latanoprost1,757 claims
- Dorzolamide-Timolol1,281 claims
- Brimonidine Tartrate861 claims
- Pilocarpine Hcl470 claims
- Prednisolone Acetate362 claims
- Timolol Maleate196 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.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jonathan Winarko among 2,899 ophthalmology physician records in California
Jonathan Winarko, MD is one of 2,899 ophthalmology physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 55% of them.
- NPI issued2007 · 55% of these records are older, 33% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2006 · median 2001 among the 1,907 with a school on file
- Record last updated2021 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in California
There are 2,899 ophthalmology physician records in California.
All 2,899 in California → Every provider in Irvine → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Katherine Chen, MSIrvine, CA 926971699237420
- Grace Kim, MDIrvine, CA 926971003101874
- Ronald Kurtz, MDIrvine, CA 926971710065453
- Nancy Lee, M.D.Irvine, CA 926971649592668
- Rhett Schiffman, MDIrvine, CA 926971235279910
- Helen Tseng, M.D.Irvine, CA 926971982729786
- Bethlehem Wole, MDIrvine, CA 926971659966018
- Luis Chanes, M.D.Mission Viejo, CA 926911043277361
Common questions
What is Jonathan Winarko, MD's NPI number?
Jonathan Winarko, MD's National Provider Identifier (NPI) is 1750565032, issued on Dec 23, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Jonathan Winarko, MD located?
The NPPES record lists a practice address at 118 Med Surge I, Irvine, CA, 92697. Phone: (949) 824-0158. Providers update this record themselves, so call before visiting.
How can I verify Jonathan Winarko, MD's license?
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 Jonathan Winarko, MD prescribe under Medicare Part D?
In 2024, Jonathan Winarko, MD had 6,022 Medicare Part D claims for 1,128 beneficiaries; the average among ophthalmology physician prescribers was 1,518. 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.