Dr. John Zilis MD

Ophthalmologists in Denver, CO

5  Excellent based on 3 reviews | Rate Dr. Zilis
Dr. Zilis has been compared 93 times

Dr. John Zilis specializes in ophthalmology in Denver, Colorado.

Dr. John Zilis has been compared 93 times. Details of Dr. Zilis' 33 years experience as an MD, his hospital affiliation and education at Oregon Health & Science University are available on your free doctor report.


Primary Location for Dr. Zilis

Dr. John Zilis
850 E Harvard Ave
Suite 155
Denver, CO 80210

Patient Ratings and Reviews


Dr. John Zilis has an average rating of 5 stars (out of 5) with a rating of Excellent based on 3 reviews.

Have you visited Dr. John Zilis? Rate you experience below.


 Board Certification, Specialty and Expertise

Dr. John Zilis has been identified as specializing in Ophthalmology.

He is certified in Ophthalmology.

More information available on your free report

Accepted Insurance

Insurance plans and networks accepted by a doctor are not necessarily universal across all locations at which the doctor practices. This can be affected by many factors such as different group practices, hospital affiliations and working arrangements at those locations. Checking that the doctor you are visiting and the facility they are at are in-network providers for your insurance plan can save you money and headaches later from surprise medical bills.

Dr. John Zilis accepts the following plans at 850 E Harvard Ave, Denver, CO

  • Aetna
  • Cigna
  • United Healthcare - Direct
  • Multiplan
  • Rocky Mountain Health

See additional insurance networks accepted by Dr. Zilis

 Hospital Affiliation

A hospital affiliation covers any doctor who has an affiliation, association or admitting privilege with a hospital. A doctor's particular affiliation to a specific hospital can translate to the overall quality of that provider.

Dr. Zilis is affiliated with 1 hospital:

Porter Adventist Hospital
2525 S Downing St
Denver, Colorado


Dr. Zilis attended medical school at Oregon Health & Science University School of Medicine and graduated in 1983 having 33 years experience.

While there is no proven correlation between the quality of one's educational institution and the quality of one's professional competence, it is often an indicator. Medical schools have various levels of selectivity (some are harder to get into than others), and both the quality of their clinical training and level of research are measured. Additional medical training in both residency and fellowships and the facilities they are conducted at also provide a history of the doctors' level of training and experience.


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