Dr. John O'Neill, OD
O'Neill Optometry
1356503403Is Dr. John O'Neill, OD a Good Optometrist?
Dr. John O'Neill, OD has a trust score of 89/100 — placing them in the top tier of verified optometrists in Crystal Lake, IL. With 18 years of practice (above the local average of 15), they have solid experience.
The most important verification step for any optometrist is confirming an active, unrestricted license with the state board — use the panel on this page to check O'Neill's current standing and any public disciplinary actions directly at the source.
What is a general optometrist?
General optometrists examine eyes, diagnose vision problems, prescribe glasses and contact lenses, and detect eye diseases such as glaucoma and cataracts.
When to see one: For routine eye exams, glasses or contacts, and vision changes.
More about optometrists →Trust Verification
- NPI Active
- License Active
- No Disciplinary Actions
- Credentials Verified
- Established Practice
- Focus Verified
Eye care in Crystal Lake, IL
Crystal Lake has 21 verified optometrists on EyeDoctorProof, with an average of about 15 years in practice, and 20 focused on optometrist. Illinois optometrists are licensed and disciplined by the Illinois Dept. of Financial & Professional Regulation, whose public record covers license status, disciplinary actions.
Peer Comparison
18
Years practicing
15
Avg in Crystal Lake
21
Optometrists in Crystal Lake
OD
Credential
Before your appointment
- Confirm O'Neill's license is active and unrestricted with the Illinois board (link on this page).
- Ask whether the visit is a routine exam or a medical eye evaluation, and what it covers.
- Bring your current glasses or contacts, plus a list of medications and any family history of eye disease.
- Ask about cost, insurance, and whether dilation or extra imaging carries a separate fee.
- Mention symptoms like dryness, headaches, or screen strain so they can be addressed during the exam.
Frequently asked questions
Is Dr. John O'Neill, OD a licensed optometrist?
Dr. John O'Neill, OD holds a Doctor of Optometry (OD) credential and an NPI (1356503403) on file in the national provider registry. Active license status and any public disciplinary actions are maintained by the Illinois Dept. of Financial & Professional Regulation — verify current standing using the link on this page.
How experienced is Dr. John O'Neill, OD?
Dr. John O'Neill, OD has approximately 18 years in practice, based on NPI enumeration date. The average optometrist in Crystal Lake has about 15 years. There are 21 optometrists in Crystal Lake, including 20 with a optometrist focus.
Where is Dr. John O'Neill, OD located?
Dr. John O'Neill, OD practices at O'Neill Optometry, 4002 WYNDWOOD DR, Crystal Lake, IL 60014. Phone: (815) 245-2560.
Related reading
Verify License & Discipline
License status and public disciplinary actions are maintained by the Illinois Dept. of Financial & Professional Regulation, whose official record verifies license status, disciplinary actions. Check O'Neill's current standing at the source:
Look up on the state boardWe link to the official board rather than republishing discipline records, so you always see the most current, authoritative status.
Quick Facts
- Focus
- Optometrist
- Credential
- OD
- Gender
- Male
- NPI Since
- 06/30/2008