Mark Sienko, MD

Zero stars. I saw mark when I was supposedly diagnosed with cancer. After my experience, I am doubting that I even had cancer. I saw mark every visit.... until I started treatments, I never saw him again. When I tried to report side effects, I was dismissed, so I doubt they ever notated it in my chart. They never want to hear what their "treatments" did, besides "you're alive so I don't know why you're complaining". If it's take this poison or die, why can't they acknowledge that it causes long term health problems? But hey, they need to see you every 6 months, to do that $7,000 scan and mammograms and .. and... yeah right. I would eat leaves from my backyard as a treatment before I ever trust a doctor again.

Dr Sienko gave us excellent care. He showed that he really cared about finding the cause of my wife’s blood condition. I would highly recommend him.

Dr. Sienko is very smart and knowledgeable about the best treatments for my kind of lung cancer. He answers my questions thoughtfully and carefully. That is what I want from an oncologist. I have complete confidence in Dr. Sienko.

I was referred to this individual by my primary care doctor. I have been diagnosed by two separate urologists as having kidney cancer. He was dismissive, arrogant, condescending, did not seem to care about my concerns,, told me my doctors were jumping to conclusions, and to come back after I have the kidney removed. I will not be returning to his practice!!!

If you have a loved one going through cancer, stay away from Dr. Sienko. He is rude, condescending, insensitive, does NOT listen to the patient let alone family members, lacks empathy and compassion, and his bedside manner is non-existent. It's been about a year and a half since I lost my mother. During the time I was taking care of her, I (we) made more than three different requests to utilize the death with dignity act. Dr. Sienko refused to hear us. The medicine he used caused the cancer to retreat from her lungs into her abdomen where it wreaked havoc on her over the last few months, hours and minutes of her life. She ended up suffering and withering away just like she DID NOT WANT TO DO!!! My mother and I took care of my father in our family home and watched him suffer and wither away together. Neither she nor I wanted that for her, but NO! Thanks to Dr. Sienko not listening to his patient, working for his patient, he worked for himself and just sluffed my mother off to the… wayside when treatment wasn't working. I would NEVER recommend this doctor to anyone. EVER!

Disinterested, made med changes in my chemo and did not tell me. Was sicker than a dog. When seeing him for an appointment out of the main office they forgot to bring my medication for my shots.

Arrogant, cocky and disinterested are just a few of the words I can actually use in public. He would not even make eye contact with me when I was asking questions about my mothers failing health.

Is very arrogant. Makes you feel like you are wasting his time. Does not answer questions

Very professional and caring.

This doctor is arrogant and condescending. Will not listen to the patient. Met with him once and will not see him again.