Dr. Nicholas Mezitis, MD

Dr. Nicholas Mezitis, MD

Endocrinology, Diabetes & Metabolism  |  
Male  |  
Age 66
Insurances AcceptedSave
Dr. Nicholas Mezitis, MD is an endocrinology, diabetes & metabolism doctor who practices in New York, NY. He is 66 years old.

160 W End Ave Apt 1H

New York, NY 10023

Contact Information

Insurance Accepted

  • Aetna
  • Cigna
  • UnitedHealthCare
  • WellPoint

*Please verify this information when scheduling an appointment.

Learn about Dr. Mezitis

Be confident in your decisions by checking out your provider's top areas of care, education, patient reviews and more. Learn about finding the right doctor for you

Top Care Areas


See how frequently Dr. Mezitis performs your care needs compared to other doctors.

Vitamin D Deficiency
very high
more than 98% of peers
very high
more than 96% of peers
Thyroid Disease
very high
more than 96% of peers

Dr. Mezitis's percentages are based on the rate of treatment compared to peers nationwide from insurance data. Learn more info about our data and this Top Care Areas component.

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Care Philosophy

This content was provided by Dr. Mezitis "High-quality, personalized care for patients with endocrine disorders, metabolic illness, weight disorders and nutritional problems. Coordination of care with other physician specialists, primary care physicians and other health care professionals. A private, fee-for-service medical practice. We have special experience in serving the medical needs of the international patient, including medical records review for expert opinion and scheduling for follow-up care in New York."


  • Endocrinology, Diabetes & Metabolism
  • Internal Medicine

Board Certifications

Dr. Mezitis does not have any board certifications listed.


Conditions Treated

  • Abnormal Thyroid
  • Adrenal Gland Diseases
  • Adrenal Incidentaloma
  • Adrenal Insufficiency
  • Autoimmune Diseases
  • Autoimmune Thyroid Diseases
  • Benign Tumor
  • Bone Disorders
  • Breast Diseases
  • Calcium Metabolism Disorders
  • Cancer
  • Cushing's Syndrome
  • Diabetes
  • Diabetes Coma
  • Diabetes Ketones
  • Diabetes Mellitus, Secondary
  • Diabetes Type 1
  • Diabetes Type 2
  • Diabetes With Renal Manifestations
  • Diabetic Ketoacidosis
  • Female Infertility
  • Gestational Diabetes
  • Goiter
  • Graves' Disease
  • Growth Hormone Deficiency
  • Gynecomastia
  • Hashimoto's Disease
  • Hormone Imbalance
  • Hypercalcemia
  • Hyperkalemia
  • Hyperlipidemia
  • Hyperparathyroidism
  • Hyperthyroidism
  • Hypoglycemia
  • Hypokalemia
  • Hypoparathyroidism
  • Hypopituitarism
  • Hypothyroidism
  • Kidney Disease
  • Klinefelter Syndrome
  • Lipid Disorders
  • Malaise and Fatigue
  • Menstrual Disorders (incl. Dysmenorrhea)
  • Obesity
  • Osteopenia
  • Osteoporosis
  • Overweight
  • Parathyroid (Gland) Tumor: Other than Malignant
  • Polycystic Ovarian Syndrome
  • Pregnancy-Related Disorders
  • Rickets
  • Symptomatic Menopause
  • Testicular Dysfunction
  • Thyroid Cancer
  • Thyroid Cyst
  • Thyroid Disease
  • Thyroiditis
  • Vitamin D Deficiency


Read More


  • Diabetes Counseling
  • Diet Counseling
  • Exercise Counseling
  • Insulin Pump Therapy

Background Check

0 Malpractice Claims

No malpractice history found for New York.

0 Sanctions

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

0 Board Actions

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


  • University Of Athens / College Of Medicine / School Of Health Science National & Kapodistrian
    Undergraduate School | Graduated 1972
  • Medical Faculty Mannheim At The University Of Heidelberg
    Internship Hospital | Completed 1978
  • George Washington U Hosp
    Residency Hospital | Completed 1980
  • Thomas Jeffersonuniv Hosp
    Residency Hospital | Completed 1983
  • Columbia University Med Ctr
    Fellowship Hospital | Completed 1988
  • Joslin Diabetes Ctr, Harvard Med Sch
    Fellowship Hospital | Completed 1984
  • New England Deaconess Hosp/Harvard U
    Fellowship Hospital | Completed 1984
  • St. Luke's, Roosevelt
    Fellowship Hospital | Completed 1988
  • Memorial Sloan Kettering Cancer Center
    Other Education | Completed 1985

Awards & Recognition

Awards & Honors

Dr. Mezitis has no awards or honors listed.

Media & Publications

Dr. Mezitis has no media or publications listed.

Languages Spoken

  • English
  • French
  • German
  • Greek
  • Spanish

Memberships & Professional Affiliations

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

Dr. Mezitis' Reviews

Likelihood of recommending Dr. Mezitis to family and friends
based on 9 total reviews (4 with comments)
Dr. Mezitis' 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 Comments (4)
in Cutler, OH |
Dr. Mezitis is a very caring doctor and takes the time to listen to your issues and offer solutions - not just pills. He is my favorite doctor of several specialists I have to see and I will be very, very sorry when he ultimately retires. You can sometimes wait a bit but that's because he takes the time with his patients.
Franklin Lakes, NJ |
The best Endocrinologist in NYC and now at the Cleveland Clinic. One of the finest Dr's I have ever been to.
in New York, NY |
Dr. Mezitis was a wonderful, warm, professional doctor who was very respectful and helpful. He helped me regain my health. I would highly recommend him.
in logan, ohio 43138 |
There is not enough wonderful words to describe Dr. Mezitis. he has been an excellent doctor to me. i have four daughters RN that thinks he is great. when he saw me i was a patient with sugar of 777 by cortisone shots my physican never caught this. when i left hospital i was on 98 units insulin. In over an year Dr. Mezitis has me only on insulin as needed. i have used one insulin pen novolog ia year.. i was on a mediformin 500mg pill for 7 months stopped it a month ago. Always return calls.
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See our Endocrinology, Diabetes & Metabolism Specialists at NewYork-Presbyterian/Queens

Visit Dr. Mezitis

Now Accepting New Patients
Dr. Mezitis accepts 4 insurance carriers
  • Aetna
  • Cigna
  • UnitedHealthCare
    United Healthcare
  • WellPoint

*Please verify this information when scheduling an appointment.

Hospitals where Dr. Mezitis has admitting privileges

Saint Luke's Roosevelt Hospital
1111 Amsterdam Ave
New York, NY 10025
View Hospital Profile