Mario Sznol, MD


Internal Medicine, Medical Oncology

Conditions & Treatments

Immunotherapy, Kidney Cancer, Lymphoma, Melanoma, Renal Cancer, Renal Cell Carcinoma, Urinary Tract Cancers

(203) 200-6622
Accepting New Patients
Telehealth Visits


Mario Sznol, MD, is a medical oncologist at Yale Medicine and the co-director of the Cancer Immunology Program at Yale Cancer Center. He sees patients with melanoma (a type of skin cancer), or kidney cancers.

Dr. Sznol became interested in melanoma and kidney cancers early in his career following his research interest in immunotherapies. Those immunotherapies were particularly effective for melanoma and kidney cancer patients.  

As a clinician, Dr. Sznol aims to be honest and straightforward with his patients. “We talk to them very frankly about what's going to happen, what they need, and what sorts of treatments are available.” From there, he engages his team to help patients schedule their treatments and feel as comfortable as possible with the experience. “One of the best ways to make sure patients feel most comfortable is to make sure we answer all of their questions about what’s going to happen.”

Dr. Sznol believes that his team’s expertise and genuine care for patients is what sets him apart as a doctor. “We get excited when we can help people and return them back to their normal lives,” he says.

In addition to seeing patients, Dr. Sznol conducts research on new treatments for melanoma and kidney cancers with a major focus on immunotherapies. He is also a professor of medicine (medical oncology) at Yale School of Medicine.





Affiliated With

Smilow Cancer Hospital, Yale Medicine


Smilow Cancer Hospital

35 Park St.
New Haven, CT 06511

Get Directions

Monday9:00 AM - 5:00 PM
Tuesday9:00 AM - 5:00 PM
Wednesday9:00 AM - 5:00 PM
Thursday9:00 AM - 5:00 PM
Friday9:00 AM - 5:00 PM
(203) 737-4067

Education & Training


Baylor College of Medicine


Baylor College of Medicine


Mount Sinai College of Medicine

Accepted Insurance

Insurance coverage regularly changes, please contact the doctor’s office directly to verify that your specific insurance plan is accepted.

  • aetna
  • anthem bc/bs
  • berkeley care network
  • cigna healthcare
  • community care network
  • connecticare
  • corvel
  • first health network
  • focus healthcare
  • great west
  • husky
  • medicaid
  • medicare
  • multiplan
  • oxford health plans
  • railroad medicare
  • tricare/champus
  • united healthcare
  • us family health plan
  • wellcare