Dr. Irwin Klein, MD

Dr. Irwin Klein, MD

Thyroid Disorders  |  
Male  |  
Age 70
Dr. Irwin Klein, MD is a thyroid disorders doctor who practices in Great Neck, NY. He is 70 years old and has been practicing for 44 years. Dr. Klein is affiliated with NYU Langone Medical Center and North Shore University Hospital.

935 Northern Blvd Ste 106

Great Neck, NY 11021

Contact Information

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Top Care Areas


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

Thyroid Disease
more than 9% of peers
more than 2% of peers
more than 2% of peers

Dr. Klein'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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  • Thyroid Disorders
  • Endocrinology & Metabolism

Board Certifications

  • Diabetes, Metabolism & Endocrinology
    Accredited by: American Board of Internal Medicine*
  • Internal Medicine
    Accredited by: American Board of Internal Medicine*

Conditions Treated

  • Autoimmune Diseases
  • Autoimmune Thyroid Diseases
  • Bone Disorders
  • Cancer
  • Goiter
  • Graves' Disease
  • Hashimoto's Disease
  • Hyperkalemia
  • Hyperlipidemia
  • Hyperparathyroidism
  • Hyperthyroidism
  • Hyposmolality and Hyponatremia
  • Hypothyroidism
  • Lipid Disorders
  • Osteopenia
  • Phosphorus Metabolism Disorders
  • Testicular Dysfunction
  • Thyroid Cancer
  • Thyroid Disease
  • Thyroid Nodule
  • Thyroiditis
  • Vitamin D Deficiency


  • Fine Needle Aspiration of Thyroid Nodules

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.


  • New York University School Of Medicine
    Medical School | Graduated 1973
  • Hospital Of The University Of Pennsylvania
    Internship Hospital | Completed 1974
  • Hospital Of The University Of Pennsylvania
    Residency Hospital | Completed 1975
  • National Cancer Institute Nih
    Fellowship Hospital | Completed 1977
  • University Miami
    Fellowship Hospital | Completed 1979

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
Media & Publications

Dr. Klein has no media or publications listed.

Languages Spoken

  • English

Memberships & Professional Affiliations

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

Dr. Klein's Reviews

Likelihood of recommending Dr. Klein to family and friends
based on 16 total reviews (2 with comments)
Dr. Klein's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers Questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
  • Average wait time
    Under 10 minutes
Patient Comments (2)
in East Setauket, NY |
When you meet Dr. Klein it is clear that he is an expert in his field. He immediately understood exactly what my situation indicated. He is also very personable and friendly. I only wish they were open more days (Currently only M,W,F) and that they would accept insurance. They do not bill the insurance, but they will give you a document that you can submit to your insurance on your own.
Brooklyn, NY |
Dr. Klein is very knowledgeable and listens to your concerns. He is not quick to cut you open and remove nodules, but assesses all of your medical information, tests, etc and uses his professional opinion to guide you.
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See our Thyroid Disorders Specialist at NYU Winthrop Hospital

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Hospitals where Dr. Klein has admitting privileges

North Shore University Hospital
300 Community Dr
Manhasset, NY 11030
View Hospital Profile
NYU Langone Medical Center
550 1st Ave
New York, NY 10016
View Hospital Profile