Summary

Dr. Jonathan Kaplan is an endocrinologist specializing in diabetes and metabolism with 36 years of experience treating patients with hormone-related conditions. He earned his medical degree from the Ruth and Bruce Rappaport Faculty of Medicine at the Technion Israel Institute of Technology and completed his residency at Long Island Jewish Medical Center. Dr. Kaplan speaks English and brings more than three decades of expertise to his endocrine practice.

Dr. Kaplan is affiliated with Staten Island University Hospital, Staten Island University Hospital South, Northwell Health Hospital, and Long Island Jewish Medical Center, with practice locations in Great Neck, Manhasset, Staten Island, and New Hyde Park, New York. He treats patients with high blood sugar conditions and hyperglycemic emergencies. His expertise includes performing thyroid hormone tests and comprehensive metabolic panels to help diagnose and monitor endocrine disorders. Patients rate Dr. Kaplan 4.6 out of 5 stars for his care.
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Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.6
  • 36 years of experience
  • speaks English
  • Li Jewish Medical Center
  • 12 written reviews
  • 1 specialty
  • 12 areas of expertise
  • 1 board certification
  • 4 hospital affiliations
  • 4 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Jonathan Kaplan has 4 locations

Endocrinology And Diabetes Llc

1000 NORTHERN BLVD STE 112GREAT NECK, NY 11021
Mon9:00 am - 4:00 pm
Tue9:00 am - 4:00 pm
Wed9:00 am - 4:00 pm
Thu9:00 am - 4:00 pm
Fri9:00 am - 4:00 pm
SatClosed
SunClosed

Northwell Health Hospital

300 Community DrManhasset, NY 11030

Staten Island University Hospital

475 Seaview AveStaten Island, NY 10305

Long Island Jewish Medical Center

27005 76th AveNew Hyde Park, NY 11040

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Dr. Jonathan Kaplan, MD
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Dr. Jonathan Kaplan, MDDr. Rachelle G. Gandica, MDDr. Utpal Bhagirath Pajvani, MD, PhDDr. Adriana P. Kuker, MD
Endocrinology, Diabetes & MetabolismEndocrinology, Diabetes & MetabolismEndocrinology, Diabetes & MetabolismEndocrinology, Diabetes & Metabolism
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.6 
36 Years of Experience 22 Years of Experience 21 Years of Experience 16 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English Speaks Spanish, English Speaks Spanish, English Speaks Spanish
GREAT NECK , NYNew York , NYNew York , NYEastchester , NY
Med School: Ruth And Bruce Rappaport Fac Of Med Technion Israel Inst Of Technology Med School: Albert Einstein College Of Medicine Of Yeshiva University Med School: Albert Einstein College Of Medicine Of Yeshiva University Med School: New York University School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Jonathan Kaplan

  • Accepts Medicare

Medical Specialties

Dr. Jonathan Kaplan has the following specialty

Specialty Expertise

Dr. Jonathan Kaplan has the following 12 areas of expertise

  • Acromegaly
  • Addison Disease
  • Cushing Disease
  • Diabetes
  • Diabetes (Types I & II)
  • Diabetes Mellitus, Type 1
  • Fatigue
  • Gland Issues
  • Hormones
  • Hyperthyroidism
  • Hypopituitarism
  • Hypothyroidism

Certifications, License, & Education

36 Years Experience

Dr. Jonathan Kaplan holds an expired medical license in the state of New York.

Medical License

Medical Doctor with an expired medical license in the state of New York that expired in 2026.

Education & Training

Residency

Completed their residency at Li Jewish Medical Center.

Medical School

Graduated from Ruth And Bruce Rappaport Fac Of Med Technion Israel Inst Of Technology in 1990.

NPI Number

Dr. Kaplan's NPI number is 1285713487.

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Frequently Asked Questions

Which hospitals is Dr. Jonathan Kaplan affiliated with?
Dr. Jonathan Kaplan is affiliated with Staten Island University Hospital, Staten Island University Hospital South, NORTHWELL HEALTH HOSPITAL, and Long Island Jewish Medical Center.
How can I make an appointment with Dr. Jonathan Kaplan?
You can find contact information for Dr. Jonathan Kaplan here on Vitals.
Does Dr. Jonathan Kaplan accept my insurance?
You can see the insurance plans that Dr. Jonathan Kaplan accepts on their Vitals profile.
What languages does Dr. Jonathan Kaplan speak?
Dr. Jonathan Kaplan speaks English.
Where is Dr. Jonathan Kaplan's office located?
Dr. Jonathan Kaplan's office is located at 1000 NORTHERN BLVD STE 112, GREAT NECK, NY, 11021.

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