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Dr. Demetrios Markouizos, MD

Dr. Demetrios Markouizos, MD

Age 67 Allergy
(152) 152 reviews

Telehealth available

Dr. Demetrios Markouizos, MD is a allergy specialist in Astoria, NY. Dr. Markouizos completed a residency at Pediatrics - Methodist Hospital. They currently practice at Pediatric Health Care of Queens (PHCQ) and are affiliated with Long Island Jewish Medical Center. They accept multiple insurance plans. Dr. Markouizos is board certified in Pediatrics.


French, Greek, Spanish


  • Pediatrics - Methodist Hospital, Residency Hospital
  • Aristotelian University, Thessaloniki Greece - M.D., Medical School — 1983
  • Brooklyn College - B.S. Biology, Undergraduate School — 1978

Insurance Accepted

  • Aetna
  • Cigna
  • Empire Blue Cross Blue Shield
  • Group Health Incorporated (GHI)
  • Health Net
  • HIP Health Plan of New York
  • MagnaCare
  • Meritain Health
  • MultiPlan
  • Oxford Health Plans
  • PHCS
  • The Great-West Life Assurance Company

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Mar 07, 2020
As a first time mommy, it was a no brainer as to who I was going to chose as my son's pediatrician. Dr. Markouizos was also my pediatrician and always made my visits happy ones. He's kind, gentle, smart, reliable and truly one of a kind. I honestly did not realize how great he was until I saw him with my own child who has severe allergies to dairy and soy along with laryngomalacia. He was able to root through the issues very quickly, and was always there to take our calls or immediately call us back if we were not able to get a hold of him. As 1st time nervous parents, this took a lot of our stress away. I highly recommend him for all parents with children. I promise, you will not be disappointed and he will always guide you with your child's best interests in mind.
Eleni V. — Mar 07, 2020
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Photo: Dr. Demetrios Markouizos, MD
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Hospital Affiliations

  • Long Island Jewish Medical Center
  • NewYork-Presbyterian/Weill Cornell Medical Center
  • North Shore University Hospital

Frequently Asked Questions

A list of accepted insurance providers is available on the Healthgrades insurance check. It is always a good idea to verify your insurance when making an appointment.

New patients are generally accepted by Dr. Demetrios Markouizos, MD on Sharecare. To arrange an appointment, call the number on Dr. Markouizos's profile.

Dr. Markouizos frequently treats the following conditions: Asthma, Gastroesophageal Reflux Disease (GERD), and Obesity. See more on Sharecare.

Dr. Demetrios Markouizos, MD is affiliated with Long Island Jewish Medical Center and NewYork-Presbyterian/Weill Cornell Medical Center.

Yes, Dr. Demetrios Markouizos, MD holds board certifications in Pediatrics.

Dr. Markouizos has over 39 years of healthcare experience.

There is a star rating of 4.9/5 for Dr. Demetrios Markouizos, MD. Patients say that the appointment wasn't rushed and they trusted the provider's decisions. See all patient feedback on Sharecare.


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  1. Pediatric Health Care of Queens (PHCQ)

    1. 1
      Pediatric Health Care of Queens (PHCQ)
      3014 37Th St, Astoria, NY 11103 Existing Patients: (718) 719-7311