Eliza B. Geer, MD

Endocrinologist

Areas of Expertise

Conditions I Treat

Pituitary and skull base tumors
Cushing's disease
Acromegaly

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English

Get to Know 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.

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.

What I Do at MSK

An endocrinologist (EN-doh-krih-NAH-loh-jist) is a doctor with special training in endocrine problems. These disorders affect glands and organs that make hormones, and include diabetes, infertility, and thyroid, adrenal, and pituitary gland problems.

Medical Director, Pituitary & Skull Base Tumor Center

Conditions I Treat

Pituitary and skull base tumors
Cushing's disease
Acromegaly
Prolactinoma
Hypopituitarism
Craniopharyngioma
Diabetes
Adrenal tumors

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

Insurance Information

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New Patients

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Current Patients

Request an appointment by logging in to MSK MyChart or calling your Care Team. If you are not enrolled in MSK MyChart, ask your Care Team to send you an invitation. You can also go to MSK MyChart and select “Sign up now.”

Contact and Location

Dr. Geer sees patients at two locations.

Office Phone

646-608-3797

Location

New York, NY

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Colleagues

Doctors at Memorial Sloan Kettering work as teams, with specialists from all different areas. This allows us to consider all your needs together, and to give you the best possible care.

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Clinical Trials

Clinical Trials Investigated by Dr. Geer
A Phase 2 Study of Pasireotide in People With Prolactinoma
Collecting Information about Treatment Results from Patients with Cushing's Syndrome

Find a Clinical Trial for You

Memorial Sloan Kettering's doctors and scientists are constantly developing new treatments for cancer. MSK is typically running hundreds of clinical trials at a given time.

You may be able to participate in a clinical trial even if you are new to MSK. Search our online directory to find trial information and see more about who can participate.

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Research and Publications

Publications on PubMed

Visit PubMed for a full listing of Dr. Geer’s journal articles. Pubmed is an online index of research papers and other articles from the US National Library of Medicine and the National Institutes of Health.

See all on PubMed

Patient Reviews

Your trust is our main concern

We strive to keep reviews trustworthy, honest and fair. Learn more about our patient experience reviews.

4.9 252 reviews

4.9 Provider's Explanations Easy to Understand
4.9 Trusts Provider with Care
4.9 Provider Listened Carefully
4.9 Likelihood of Recommending Provider

Jan 14, 2025

Aisha, my phlebotomist, was AWESOME!! She went out of her way to make me feel comfortable (both physically and emotionally) and was so funny! Honestly, everyone was great during my visit!

Jan 7, 2025

The services that I receive from Dr. Geer is filled with impeccable graces and professionalism. She is a genie in disguise. She's a wonderful person, very professional, and very caring. Everyone should emulate Dr. Eliza Geer.

Jan 2, 2025

The DR listened to me. I did not feel rushed. She was extremely thorough and clear when explaining and asked many questions to make sure I had the correct diagnosis.

Dec 17, 2024

The only annoying aspect was having to fill out forms when I checked in. I had completed forms - most with the same information - prior to the appt. online (names of other doctors, medications, etc.). Not sure why this was needed.

Dec 10, 2024

Excellent job, thank you!

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Disclosures

Doctors and faculty members often work with pharmaceutical, device, biotechnology, and life sciences companies, and other organizations outside of MSK, to find safe and effective cancer treatments, to improve patient care, and to educate the health care community.

MSK requires doctors and faculty members to report (“disclose”) the relationships and financial interests they have with external entities. As a commitment to transparency with our community, we make that information available to the public.

Eliza B. Geer discloses the following relationships and financial interests:

Chiasma, Inc.
Professional Services and Activities
Crinetics Pharmaceuticals, Inc.
Professional Services and Activities
H. Lundbeck A/S
Professional Services and Activities

HRA Pharma Rare Diseases
Professional Services and Activities
Recordati S.p.A.
Professional Services and Activities
Xeris Pharmaceuticals, Inc.
Professional Services and Activities

If you’re a patient at MSK and would like more information about your doctor’s external relationships, please talk with your doctor.

The information published here is a complement to other publicly reported data and is for a specific annual disclosure period. There may be differences between information on this and other public sites as a result of different reporting periods and/or the various ways relationships and financial interests are categorized by organizations that publish such data.

This page and data include information for a specific MSK annual disclosure period (January 1, 2023 through disclosure submission in spring 2024). This data reflects interests that may or may not still exist. This data is updated annually.

Learn more about MSK’s COI policies here. For questions regarding MSK’s COI-related policies and procedures, email MSK’s Compliance Office at ecoi@mskcc.org.

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