Clifton M. Jackness, M.D. - Endocrinologist near Staten Island

Doctor Clifton Jackness Endocrinologist near Staten Island

Endocrinologist near Staten Island

Clifton M. Jackness, M.D. is an alumnus of Yale University and earned his medical degree from Albert Einstein College of Medicine. He completed his internship and residency in Internal Medicine at The Mount Sinai Medical Center, followed by a Fellowship in Endocrinology, Bone Disease, Diabetes, and Metabolism at Columbia University Medical Center.

Dr. Jackness holds a medical license in New York and is board certified in Endocrinology, Diabetes, and Metabolism. He has been honored with awards for his clinical expertise, compassionate care, research contributions, and educational efforts.

Diabetes, Obesity, and Hormonal Research near Staten Island

Dr. Jackness, an enthusiastic researcher, has participated in studies focusing on Type 2 diabetes and obesity, as well as hormonal shifts following bariatric surgery and weight loss. He has shared his research at the American Diabetes Association, New York Academy of Medicine, New York University, Columbia University, and the Obesity Society.



Moreover, Dr. Jackness has been a speaker at the New York Thyroid Club and has evaluated research articles on male hypogonadism and testosterone deficiencies for MedPage Today. He is also interested in Finasteride-induced testosterone deficiency and autoimmune thyroid diseases (Hashimoto’s and Graves’).

Endocrinology Affiliations

Dr. Jackness is an Attending Physician at NYU-Langone Health and Northwell/Lenox Hill Hospital, with academic roles at both NYU-Grossman School of Medicine and Zucker School of Medicine-Hofstra.



He is a member of the Endocrine Society, the American Association of Clinical Endocrinologists, the New York Thyroid Club, the Metropolitan New York Bone Club, the Medical Society of the State of New York, the New York County Medical Society, and the American Medical Association.



Dr. Jackness values personalized medical care, collaborating closely with his patients to achieve optimal health outcomes.

Meet Dr. Jackness

Hear Why People Are Choosing Park Avenue Endocrinology

"Always a pleasure seeing Dr. Jackness. He is thorough, attentive and has wonderful bedside manner. He is knowledgeable and takes the time to talk about all of your medical concerns. I can’t say enough nice things about him! Personable and professional doctor. Highly recommend!"

- ANONYMOUS

"Dr. Jackness is the Best Endocrinologist ever, he is always so knowledgeable. He always goes over my result’s and takes the time to discuss next steps with me."

- ADALGISA P.

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