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Pediatric Health Care of Queens / Demetrios Markouizos, M.D., F.A.A.P.
30-14 37th Street Astoria, New York 11103

We recognize that conservative treatment is achieved through prevention, early diagnosis, and patient education. It is our goal to treat your child with the latest technologies coupled with Dr. Markouizos’ extensive experience allowing the most comfortable and thorough experience possible.


         See a listing of our accepted medical insurance plans.


Image of young toddlerA standard of excellence in personalized health care enables us to provide the quality pediatric healthcare services our patients deserve. We provide comprehensive treatment planning to achieve your child's optimal health. Should an emergency occur, we make every effort to see and care for your little one as soon as possible. For our existing patients, we are available via phone 24 hours a day for emergencies.



As a private practice specialized in the health and preventative care in infants, children and adolescents, we are true believers that preventative care and patient education are the keys to optimal health for a lifetime. We strive to provide ‘health care’ vs. ‘disease care’. That's why we focus on thorough exams — checking the overall health of the child to detect and correct little problems before they become big ones. We also encourage routine visits in maintaining a healthy life style and avoiding disease.


Infection control in our office is also very important to us. To protect our patients and ourselves, we strictly maintain sterilization and cross contamination processes using standards recommended by the American Medical Association (AMA), the Occupational Safety and Health Administration (OSHA), and the Center for Disease Control (CDC).


As your health professionals, we want you to be confident knowing that we are a team of highly trained and skilled clinicians. We pride ourselves in providing the care your child needs to keep him/her healthy.


To give the best possible service and results, we are committed to continual education and learning. We attend pediatric related lectures, meetings, and conventions to stay informed of new techniques, the latest medications, and the newest equipment that a modern pediatric office can utilize to provide state-of-the-art care. Also, being a Board Certified Pediatric Attending in different NYC Hospitals and an active member of various professional medical associations helps us to stay abreast of the changes and recommendations for our profession.


Building a foundation of trust by treating your infant, child or teen as a special individual is vital to our success. We understand how uneasy some children (and parents) may feel about their doctor visits, and how we can make a difference in providing a relaxing, fun and positive experience.


Our entire team is dedicated to providing excellent, personalized care and service to make your visits as comfortable and pleasant as possible.


We thank you for allowing us to take care of your child's needs and look forward to serving you.


Payment for services is due at the time services are rendered. We accept Cash, Money Orders, Debit Card and all major Credit Cards as methods of payment.


We also offer Interest-Free Financing and other affordable Payment Plans to ensure that our outstanding services are available to everyone.

"My son suffered from severe GERD and all of the associated severe side effects which required surgeries. Dr. Markouizos diagnosed the condition, guided us every-single step of the way, recommended and constantly interacted with his gastroenterologist and surgeon through this arduous process. Today, I have a healthy teenage boy who is excelling in school and life."

Maria Constant –

mother of Phillip Constant

"It is with great pleasure and distinction that I write to you on behalf of Dr. Demetrios Markouizos and his Associates who are tremendous individuals and physicians.


I have had the privilege and honor to know these physicians for several years. I first started going to this doctor's office out of the need to have someone that was near my home. Recognizing Dr. Markouizos' attributes of cheery disposition, excellent work ethic, dedication, astuteness, perception and keen insight into his patients' conditions, I quickly decided this was the doctor I wanted to care for my children. I found that this doctor was a unique gentleman who continued to be conscientious, talented and maintained extremely high standards for himself throughout the years I have known him.


Dr. Markouizos has high expectations not only for himself but for his colleagues that he invites into his practice to work alongside him. My children and I could not have been more thrilled than when he first introduced us to the other Associates who are sensitive, caring, have patience and are always ready and willing to lend a helping hand above and beyond their call of duty.


All physicians have always demonstrated the passion and the enthusiasm, the determination, and the strength to work vigorously until their patients are receiving the care they need and until their patients are on a road of recovery. On a more personal level, both doctors are affable, cooperative, courteous, dependable, trustworthy, respectful, and extremely sensitive to the needs of their patients."



Thea C. Pallos


Dr. Markouizos embodies everything a good doctor should be. He is kind, caring and extremely knowledgeable and competent in his field. I have four children, and although I no longer live in the Astoria area, I travel as often, and as far, as necessary to retain him as my children's pediatrician. I wouldn't think of switching to a different practice!


Dr. Markouizos is a doctor who truly listens to the parents of his patients. He takes the time to hear their concerns and answer all questions. When my children are sick, he sees them immediately and is proactive in his approaches to treatment. Last year, my then one-year-old daughter was taken to the emergency room in the middle of the night. The doctors contacted Dr. Markouizos, and at 3:30 a.m., I looked up to find him there. He had traveled to the emergency room in the middle of the night to make certain my little girl was receiving the best care possible. He knows her, and his presence gave me a peace of mind and assurance that my daughter's health was in the best possible hands. It is this level of care that makes Dr. Markouizos so special.


My children are my world. I would only entrust their lives to someone in whom I have complete and unconditional confidence. Dr. Markouizos and his Associates are such doctors. We love Dr. Markouizos and his Associates. In the fifteen years they have been my children's pediatricians, I have never had a moment's hesitation about the level of care or sincerity. They are the best"!




"Dr. Markouizos is the consummate professional and ultimate diagnostician. He is brilliant and loved by myself and my son. With a questionable asthma diagnosis and no help in sight, Dr. M. single-handedly created a regimen that has brought our life back to normal. There are no unanswered questions when you visit his office. His staff is always there to hold my hand! His are the only hands that I would entrust with my son".

Cynthia DeMonte –

mother of Alessandro Figueroa

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Pediatric Health Clinic of Queens

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30-14 37th Street

Astoria, New York  11103



FAX:   718- 278-2430