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Super Health Supplement has all vitamins recommended for COVID-19 protection and a lot more. Click here for more information.

Important COVID-19 Update

In order to protect our patients and staff while simultaneously maintaining continuity of care, Endocrinology Associates of NJ is now offering telemedicine visits to all of our existing patients, as well as instituting new policies and procedures for lab draw visits. Please call your office location to speak with our friendly staff for more details and read this important bulletin

For patients interested in our COVID-19 Antigen or Antibody Testing, please click here


Endocrinology Associates of New Jersey

We are dedicated to providing outstanding medical care and education for patients in the areas of Diabetes, Thyroid Disease, Osteoporosis, High Cholesterol and all other hormonal issues.

Diabetes Care

Our diabetes care professionals are ready to help you manage your diabetes and improve your quality of life.

Thyroid Disease

Diagnosing and treating diseases involving the thyroid, pancreas, adrenal, parathyroid, ovaries, testes, pituitary and hypothalamus.


Our professional staff is here to service you.


We are dedicated to providing outstanding medical care.


We offer our patients flexibility and convenience.

Endocrinology Associates of New Jersey is a full service endocrinology practice with three convenient locations in East Brunswick, NJ, Old Bridge, NJ, and Manalapan, NJ. Our board-certified physicians are dedicated to providing outstanding medical care and education for patients throughout Monmouth and Middlesex Counties and all of Central NJ in the areas of Diabetes, Thyroid Disease, Osteoporosis, High Cholesterol, and all other hormonal conditions. Our treatment philosophy emphasizes proper nutrition, exercise and a healthy lifestyle. We believe that the best patient is an informed patient, and we view care delivery as a collaboration between patient and physician. We promote wellness to every patient and encourage all of our patients to follow our guidance to good health. We take great pride in providing the best patient care to our community every day in a comfortable, safe, convenient, and friendly environment. 

About Dr. Sun:

“I’ve been going to Dr. Sun for a few years now for treatment of my thyroid, and have recommended him to friends and family .He listens to you, speaks to you like a person, and doesn’t talk down to you like some doctors do. He Responds quickly to questions. I can’t say enough how great he is.”

Herbert C.

About Dr. Surgan:

“Dr. Surgan’s expertise and bedside manner are unparalleled. Efficient and friendly staff. Highly recommended.”

Michele G.

About Dr. Priven:

“Doctor Igor Priven is an absolute expert on Diabetes. He has set me up on programs to help me control my blood sugar levels that I did not even know existed. He listens to every single word that you say regarding your condition. He also shows compassion and understand and is an excellent Doctor. I give him 5 Stars and recommend him highly. It would be nice if other Doctors were as good as he is.”

Renard P.

About Nurse Practitioner Marina Sherman:

I have been Marina’s patient for four years. She has treated me and my wife, and she has treated us with utmost patience, respect, and above all CARE. She is very knowledgeable, and thorough, and we found Marina is the best diabetes specialist we have ever dealt with!!! Office staff isprofessional and also knowledgeable and accommodating. Overall, I highly recommend her, and feel so fortunate to have found her.”

Gregory M.