Dr. Nicholas Nonas, MD
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Dr. Nicholas Nonas, MD


Allergy & Immunology | Male

Nicholas G. Nonas, MD, Prof. LLC 8200 E Belleview Ave Ste 202C Greenwood Village, CO 80111 Get Directions


Dr. Nicholas Nonas, MD is an allergy & immunology doctor who practices in Greenwood Village, CO. He is 72 years old and has been practicing for 47 years. Dr. Nonas is affiliated with Swedish Medical Center.

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Dr. Nonas' Experience

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Conditions Treated

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Languages Spoken

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Memberships & Professional Affiliations

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Visiting Dr. Nonas

Dr. Nonas accepts 5 insurance carriers

Affiliated Hospitals

Hospital Quality
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Dr. Nonas' Reviews

Likelihood of recommending Dr. Nonas to family and friends
based on 14 total surveys (3 with reviews)
Dr. Nonas' Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers Questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
  • Average wait time
    10 to 15 minutes
Patient Reviews (3)
in Littleton, CO |
When I first started seeing Dr Nonas I had had a severe reaction to a horseback ride. Turned out that I was allergic to about anything in the environment. Today, I seldom have any allergy problems. I credit all this to Dr Nonas for his care, knowledge and skill.
in Denver, CO |
Dr. Nonas must be onze of the most intelligent physicians on the planet. He is factual while intuitive. Within thirty minutes, he reviewed my history, understood my needs, and made recommendations. I recommend him highly. Katherine Georges
in Denver, CO |
Dr. Nonas takes time with patients. He does not work in 15 minute increments as do many doctors. He is the most thorough doctor I have seen. He looks at the entire picture, not just the complaint you have. He is very knowledgable in his field of practice and much more. He does not rush you and will answer your questions. He explains procedures and medications so you understand. I started with Dr. Nonas many years ago. I felt the same way then as I do now.
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Dr. Nonas' experience matches your search based on the following criteria:

  •  Based on total number of patients treated over the last 12 months
  •  Specializes in Allergy & Immunology
  •  Board certified in Family Practice
  •  No malpractice claims found
  •  No sanctions found
  •  No board actions found

Awards & Recognition

  • Awards & Honors
    • Healthgrades Honor Roll
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  • Media & Publications

    Dr. Nonas has no media or publications listed.

Background Check

  • 0
    Malpractice Claims

    No malpractice history found for Colorado.

    What is medical malpractice
  • 0

    No sanctions history found for the years that Healthgrades collects data.

    What is a sanction or disciplinary action
  • 0
    Board Actions

    No board actions found for the years that Healthgrades collects data.

    What are board actions

Board Certifications

Why It Matters: Dr. Nonas' Board Certifications

Board certification should be one of your top considerations when choosing a doctor. Board certification is an official recognition given to doctors who have met specific requirements set by national medical specialty boards in the... More

  • Family Practice

Conditions Treated

  • Acute Sinusitis
  • Allergic Reaction
  • Allergic Rhinitis
  • Allergic Rhinitis Due to Food
  • Animal Allergies
  • Asthma
  • Bronchitis
  • COPD (Chronic Obstructive Pulmonary Disease)
  • Chronic Sinusitis
  • Dermatitis Due to Food
  • Dermatitis Due to Substances Taken Internally
  • Deviated Septum
  • Eye Infections
  • Hives
  • Nasopharyngitis
  • Pinkeye (Conjunctivitis)
  • Pollen Allergy
  • Postnasal Drip
  • Pulmonary Disease
  • Sinusitis
  • Skin Infections


  • Medical School
    University of Iowa

    Graduated in 1970

  • Internship Hospital
    P - SL
    Presbyterian - St Luke's Medical Center

Languages Spoken

  • English
  • Greek
  • Spanish

Memberships &
Professional Affiliations

Dr. Nonas does not have any memberships or affiliations listed. If you are Dr. Nonas and would like to add memberships or affiliations, please update your free profile.


  • Allergy & Immunology
  • Family Medicine

Procedures Performed

  • Allergy Shots
  • Allergy Skin Testing
  • Allergy Testing
  • Allergy Treatment