Eliza B. Geer, MD

About Me

I am an endocrinologist who specializes in caring for people with pituitary and neuroendocrine diseases. I am the Medical Director of Memorial Sloan Kettering’s Multidisciplinary Pituitary & Skull Base Tumor Center, located at Memorial Hospital in Manhattan. At this center, we bring together experts from many areas — including neurosurgery, head and neck surgery, endocrinology, radiation oncology, and medical oncology — to offer comprehensive care for people with pituitary and skull base tumors.

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Our multidisciplinary pituitary team provides personalized surgical and medical treatment for people with pituitary and skull base tumors, including prolactinomas, growth-hormone secreting adenomas (acromegaly), and Cushing’s disease. Our overall goal is to improve and advance the care of people with these conditions.

My research interests focus on achieving a better understanding of how and why pituitary tumors develop, and characterizing long-term outcomes in patients with Cushing’s disease. I have conducted a number of studies investigating body composition, adipose tissue regulation, and appetite in patients with Cushing’s disease, and I am involved in clinical trials investigating new medical therapies for patients with Cushing’s and acromegaly.

I completed my internship and residency at the NewYork-Presbyterian Hospital/Columbia Medical Center. I was a fellow in endocrinology and metabolism at the Icahn School of Medicine/Mount Sinai Medical Center, after which I was a member of the faculty for ten years. I am currently an associate professor of medicine and an active member of the Endocrine Society, the Pituitary Society, and the American Association of Clinical Endocrinologists.

  • Clinical Expertise: Pituitary Diseases; Cushing Disease; Acromegaly; Prolactinoma; Pituitary Tumors; Hypopituitarism; Craniopharyngioma; Diabetes Insipidus; Adrenal Diseases
  • Languages Spoken: English
  • Education: MD, Icahn School of Medicine at Mount Sinai
  • Residencies: NewYork-Presbyterian/Columbia University Medical Center
  • Fellowships: Icahn School of Medicine at Mount Sinai/Mount Sinai Medical Center
  • Board Certifications: Internal Medicine; Endocrinology, Diabetes, and Metabolism

See My Colleagues


Visit PubMed for a full listing of Eliza B. Geer’s journal articles

Pubmed is an online index of biomedical articles maintained by the U.S. National Library of Medicine and the National Institutes of Health.

Clinical Trials

Research is integral to our mission at Memorial Sloan Kettering, and clinical trials help us discover better forms of patient care and treatment. For you, this could mean access to a new therapy or therapy combination. Click to see a list of the trials I’m currently leading.

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Most major health insurers offer plans that include MSK as one of their in-network providers. If MSK is in-network, it means all our doctors are too. Medicaid and New York State Medicare also provide benefits for care at MSK.

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