1. Home
  2. Directory
  3. California
  4. Oakdale
  5. Optometrist
  6. NPI Profile

DR. JAMES ERNEST WINNICK O.D.
NPI 1821171000
Optometrist - Corneal and Contact Management in Oakdale, CA

Active since October 23, 2006PECOS EnrolledAccepts Medicare Assignment
141 CALIFORNIA AVE, OAKDALE, CA 95361(209) 847-3051(209) 951-2348 Get Directions Write a Review

NPPES record last updated: March 7, 2023. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Mar 7, 2023, Jul 18, 2019 (2 updates tracked since 2019).

About Dr. James Ernest Winnick O.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JAMES ERNEST WINNICK O.D. (NPI 1821171000) is an individual corneal and contact management provider in Oakdale, California, licensed in California (12016) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Stockton, and is a graduate of New York University School Of Medicine (1997).

NPPES Registry Identity

NPI1821171000
Entity TypeIndividualMale
Primary Taxonomy152WC0802X
Provider Legal NameDR. JAMES ERNEST WINNICKCredential: O.D.
Location Address141 CALIFORNIA AVEOakdale, CA 95361
Mailing Address141 California AveOakdale, CA 95361-2946 · (209) 847-3051 · Fax (209) 951-2348
Phone(209) 847-3051
Fax(209) 951-2348
Sole ProprietorNo
Medical School CMSNew York University School Of MedicineGraduated 1997
Enumeration DateOctober 23, 2006
Last NPPES UpdateMarch 7, 20232 updates tracked since enumeration
✔ NPI 1821171000 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometrist · Corneal and Contact ManagementEye and Vision Services Providers
Taxonomy Code152WC0802X
Licenses✔ Licensed in CA · 12016✔ Licensed in CA · 12016TLG
Definition
The professional activities performed by an Optometrist related to the fitting of contact lenses to an eye, ongoing evaluation of the cornea's ability to sustain successful contact lens wear, and treatment of any external eye or corneal condition which can affect contact lens wear.
141 CALIFORNIA AVE, Oakdale, CA 95361
Open in Google Maps ↗

Secondary Practice Location 1

Location 13133 W March Ln, Suite 2020Stockton, CA 95219-2361 · Phone (209) 951-0820 · Fax (209) 951-2348

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. James Ernest Winnick O.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8527120195
PECOS Enrollment IDI20081217000018
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Photography of the retina 92250
Photography of the retina, also known as retinal imaging, is a non-invasive procedure that captures images of the back of your eye. This helps doctors identify and monitor conditions like glaucoma, macular degeneration, or diabetic retinopathy. It's painless and quick, often part of a routine eye exam.
31 services31 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
18 services18 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
17 services16 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
16 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95361 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$133.94 typical visit price
range $58.87 – $176.60
Typical copayment $33.48 (range $14.71 – $44.15)
Most-billed visit code 99204
Established Patient
$73.16 typical visit price
range $19.28 – $144.60
Typical copayment $18.29 (range $4.82 – $36.15)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JAMES E WINNICK OD PROFESSIONAL CORPORATION
Optometrist
141 CALIFORNIA AVE
OAKDALE, CA 95361
Stanislaus County (209) 847-3051
DR. ALMA D MARTINEZ TORRES O.D.
Optometrist
141 CALIFORNIA AVE
OAKDALE, CA 95361
Stanislaus County (209) 847-3051
TOM F. MIHOK
Optometrist
141 CALIFORNIA AVE
OAKDALE, CA 95361
Stanislaus County (209) 847-3051
DR. TOM FRANCIS MIHOK O.D.
Optometrist
141 CALIFORNIA AVE
OAKDALE, CA 95361
Stanislaus County (209) 847-3051

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is James Winnick's NPI number?

The NPI number for James Winnick is 1821171000. It was assigned to this individual provider in the NPPES registry on October 23, 2006.

Where is James Winnick located?

James Winnick practices at 141 California Ave, Oakdale, CA 95361. The listed phone number is (209) 847-3051.

What is James Winnick's specialty?

The primary specialty registered for this NPI is Optometrist, specializing in Corneal and Contact Management, with taxonomy code 152WC0802X.

Is James Winnick enrolled in Medicare?

Yes. James Winnick is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does James Winnick accept?

Health plans from Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas and Providence Health Plan list James Winnick as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for James Winnick was last updated on March 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.