Memorial Sloan Kettering medical oncologist Arlyn Apollo

Arlyn Apollo, MD, MPH

Medical Oncologist

Clinical Expertise

Prostate Cancer; Bladder Cancer; Kidney Cancer (Renal Cell Cancer); Colon Cancer; Rectal Cancer; Anal Cancer; Esophageal Cancer; Stomach (Gastric) Cancer; Pancreatic Cancer; Gallbladder & Bile Duct Cancers

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Accepted Insurance Providers

Dr. Apollo accepts the following list of insurance providers. Select your insurance provider to see more details.

Contact and Location

Locations map

Find a Convenient Location

Memorial Sloan Kettering has locations throughout New York City, Long Island, New Jersey, and Westchester. These locations offers many services, including screening, chemotherapy, and medical testing.

About Me


MD, Mount Sinai School of Medicine


Internal Medicine - Mount Sinai School of Medicine


Oncology/Hematology - Columbia University Medical Center

Board Certifications

Internal Medicine; Medical Oncology

I am a medical oncologist and internist who cares for people with genitourinary cancer, including prostate, bladder, kidney, and testicular cancers. I also care for people with gastrointestinal cancer.

I see patients at MSK Nassau, where we offer compassionate, state-of-the-art cancer treatment for people who wish to receive MSK care closer to home. We provide the same superior care that is offered at MSK in Manhattan. Our team of medical oncologists, radiation oncologists, and surgeons collaborates closely with our colleagues in Manhattan. We regularly participate in academic conferences to stay up-to-date on the most recent advances in the fast-paced field of cancer care.

Receiving a cancer diagnosis is possibly the most frightening time in a person’s life. I hope that patients and their families are slightly less anxious after meeting with me. Knowing what to expect may help relieve some of the fear that comes with treatment for cancer.

I strive to achieve the best possible outcome for each person in my care. This includes maintaining or improving their quality of life at all stages. It is incredibly rewarding to get to know patients and their caregivers, to understand their individual needs and preferences, and to address their medical, social, and emotional concerns.

Patients often want to know about side effects and whether their daily life and activities will change while they are undergoing cancer treatment. I try to keep people doing the things they enjoy. If they are unable, we may need to make adjustments in our care plan so that they can go back to these activities. It’s important for patients to know that they are not alone. We have a dedicated team of doctors, nurses, support staff, social workers, and nutritionists ready to help them.

It is exciting to see people with cancer benefit from ongoing clinical trials. These studies can lead to new treatments. For example, immunotherapy has changed the way we treat many types of cancer.  When appropriate, my team and I enroll patients in clinical trials at MSK Nassau or in trials that are available only at MSK in Manhattan. MSK Nassau and the other regional sites offer many of the clinical trials that are available at MSK in Manhattan, and we expect these offerings to continue to grow.

Outside of work I enjoy spending time with my husband and three children,  and I am an avid runner.


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.

Clinical Trials

Smiling doctors in the lab

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.