Frequently Asked Questions

Is Dr. Ronner accepting new patients?

Yes – I am happy to welcome new patients, both children and adults.

How do I book an appointment?

Please call my office at (212) 935-7272, and I'll be happy to examine you.

What insurance does Dr. Ronner accept?

I accept Medicare, UnitedHealthCare, Oxford (PPO & HMO), Blue Cross Blue Shield (PPO & HMO), Cigna, and more. Please check with your insurance company to confirm participation. HMO plans require a referral from your primary care physician, which is the patient's responsibility to obtain.

What if I have an emergency on the weekend?

On weekends, my office number forwards directly to my cell phone, and I will speak with you personally – and examine you in my office if necessary. Please call me; do not visit a walk-in clinic like CityMD.

Which hospital is Dr. Ronner affiliated with?

I am affiliated with Lenox Hill Hospital (Northwell Health).

I have a billing question – who should I contact?

Please call my billing service, Practice Care, at (800) 374-7045 ext. 9103 and ask to speak with Karen Frudden.

At what age should a child have a complete eye exam?

It is recommended that a complete exam by an ophthalmologist take place when the child starts pre-school. I will put drops in the child's eyes to view the retina and determine whether glasses are needed. If glasses are prescribed, annual visits are recommended; if not, every 3–4 years is typically sufficient.

At what age should an adult have a complete eye exam?

For a healthy patient with no medical problems, a full annual ophthalmologic exam should begin at age 35. If there is a family history of glaucoma or macular degeneration, exams should begin several years earlier. Early diagnosis leads to significantly better visual outcomes.