Mark Edward Sienko

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Wonderful ‘bedside manner’, very informative and readily answered all my queries— and had a delightful sense of humor.

With Dr Sienko my cancer is under control, and my consult with Dr Jenson, and after the procedure I’m pain free. Praise Jesus.

Dr. Sienko and the entire nursing staff have been personable and professional throughout my experience, and my symptoms have diminished and nearly vanished.

This user rated the provider, but did not write a review

This user rated the provider, but did not write a review

Careing, pleasant, informative, thorough.

Dr. Sienko was very good about listening to my concerns and making sure I understood the options that were available. He was also great about taking the time necessary for me to be comfortable with the plan we decided to go with.

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Dr Sienko has been incredibly thoughtful and thorough in his investigation of my case. I haven’t yet been diagnosed, but he has done a great job so far of ordering different levels of testing (and exposing to me what they are for) to quickly rule things out until we get to a diagnosis. Further, his staff and everyone I have met while doing the testing at various OMC labs and imaging centers has been incredibly kind and helpful. Thank you Dr Sienko and OMC!

Rude. In a rush. Condescending.

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Very thorough and careful doctor. Shares information and spends time explaining things.

I couldn’t ask for better concern and care than I was given at my recent visit to the Olympic Medical Center’s Cancer Treatment Clinic. Mark Sienko MD is an excellent physician who exhibits all the qualities I was hoping to find in the Doctor providing my care.

Very informative and not a long wait.

This user rated the provider, but did not write a review

This user rated the provider, but did not write a review

This user rated the provider, but did not write a review

This user rated the provider, but did not write a review

Dr. Sienko and his staff are very thorough and willing to answer all questions.

This user rated the provider, but did not write a review

Dr Sienko works hard to find solutions to my issues. He even called me one late afternoon to discuss the results of my CT scan. He made recommendations for the next steps in my treatment.

Excellent Dr.. Very thorough. Explains everything. A good listener

This user rated the provider, but did not write a review

This user rated the provider, but did not write a review

Dr Mark Sienko is a well informed, highly educated, caring individual. I wouldn’t hesitate to recommend him to anyone who needs a good cancer doctor. Thank you OMC for seeing what a good fit Dr Sienko is for this county.

This user rated the provider, but did not write a review

This user rated the provider, but did not write a review

This user rated the provider, but did not write a review

This user rated the provider, but did not write a review

This user rated the provider, but did not write a review

This user rated the provider, but did not write a review

This user rated the provider, but did not write a review

This user rated the provider, but did not write a review

Very responsive and a good listener

Bestest doc ever!

I appreciate Doctor Sienko’s efforts on my behalf!!

Dr. Sienko helped me out and answered all of my concerns.

Very thorough and informative. Great mannerisms. Thank you Dr Seinko????

Dr. Sienko takes time to listen, genuinely cares about patient. This is obvious in his body language and demeanor. Plus he is a "hooper"! Dr. Sienko takes time to listen, genuinely cares about patient. This is obvious in his body language and demeanor. … More

Very Good Dr Sienko is very knowledgeable and explains things in terms you can understand. I feel he is very concerned about my health

This user rated the provider, but did not write a review

This user rated the provider, but did not write a review

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 or family members, lacks empathy and compassion, and his bedside manner is non-existent. 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 & my mom died w/out the dignity she deserved. DO NOT see Dr Sienko if you want empathy and actual care

He was cold, rude, and didn’t seem to care at all. He spent just a few minutes with us and didn’t have a shred of concern for us. Cancer is a terrible diagnosis and his lack of empathy just made it worse. There are so many bad reviews similar to this one so I wonder who manages his behavior

This user rated the provider, but did not write a review

worst dr. their ever was doesn't listen waited 2hr's to see. 3 patients scheduled at the same time. staff very slow and stupid. talk about their personal life while you stand their . outrageous!!!!!!!!!!!!!!!!!!!

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Dr Sienko was assigned my mom's case for ITP recently when she was admitted to the emergency room. His bedside manner was very rude and short. Seemed like he was in a hurry to leave and discredited all questions I had concerning my mother. He did not want to take any responsibility on questions about her treatment. Using terms like "they", who is they? I would not recommend using this Dr in the future.

This user rated the provider, but did not write a review

This user rated the provider, but did not write a review

This user rated the provider, but did not write a review

This user rated the provider, but did not write a review

Very personable. Explains complicated issues in simple terms. Takes the necessary time needed to make sure we understand what's important so we can make informed decisions.

This user rated the provider, but did not write a review

This user rated the provider, but did not write a review

This user rated the provider, but did not write a review

This user rated the provider, but did not write a review

This user rated the provider, but did not write a review

This user rated the provider, but did not write a review

This user rated the provider, but did not write a review

Dr. Sienko was my mother's Dr. When she was first diagnosed with a rare cancer. This Dr. Had a very poor bedside manner, he left us waiting at almost every visit and clearly had not reviewed her case until right before seeing her. He was rude, impatient with her questions, and discredited what she would say she was feeling. After changing Dr.s we found he misdiagnosed several things. I would not recommend him to any cancer patient. We wasted valuable time with him.

This user rated the provider, but did not write a review

This user rated the provider, but did not write a review

This user rated the provider, but did not write a review

This user rated the provider, but did not write a review

This user rated the provider, but did not write a review

This user rated the provider, but did not write a review

This user rated the provider, but did not write a review

This user rated the provider, but did not write a review