Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. James Ernest Winnick, OD

Individual provider Corneal and Contact Management Optometrist · NPI 1821171000

Dr. James Ernest Winnick, OD is an Optometry in Oakdale, California. Graduated from New York University School of Medicine in 1997, 29 years ago. Practices with James E Winnick OD Professional Corporation, a 2-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
29
Trained at
New York University School of Medicine
Licensed in
CA
In the registry since
2006
Specialties on file
2
What do these letters mean?
OD — Doctor of Optometry
An optometrist: examines eyes, prescribes glasses and contacts, and treats many eye conditions.

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Practice location Address checks out

141 California Ave
Oakdale, CA 95361
Phone: (209) 847-3051
Fax: (209) 951-2348
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 3133 W March Ln, Stockton, CA 95219-2361 — (209) 951-0820

Specialties & licences

Corneal and Contact Management Optometrist (primary) Taxonomy 152WC0802X · Licence 12016 (CA)
Corneal and Contact Management Optometrist Taxonomy 152WC0802X · Licence 12016TLG (CA)

Record details

NPI number1821171000
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorNo
NPI enumeratedOctober 23, 2006
Last updated in NPPESMarch 7, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOPTOMETRY
Medical schoolNEW YORK UNIVERSITY SCHOOL OF MEDICINE
Graduated 1997 (29 years in practice)
Group practice James E Winnick Od Professional Corporation — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount