Credentials

Credentials

  • Academic titles

    • Clinical Assistant Professor, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell

  • Medical school

    • Far Eastern University

  • Residencies

    • NewYork-Presbyterian/Queens

  • Fellowships

    • Medical College of Wisconsin

  • Affiliations

    • Southside Hospital

Locations & insurance

Locations & insurance

Insurance information

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Patient ratings & comments

Patient ratings & comments

Unlike websites where anyone can post doctor reviews, only actual patients can provide information by completing the survey sent to them by Press Ganey. Learn more.

4.8 out of 5 4.8 out of 5 rating
| 264.0 patient ratings & 84 patient comments

Friendliness/courtesy of the care provider

4.9 out of 5 4.9 out of 5 rating

Explanations the care provider gave you about your problem or condition

4.8 out of 5 4.8 out of 5 rating

Concern the care provider showed for your questions or worries

4.8 out of 5 4.8 out of 5 rating

Care provider's efforts to include you in decisions about your treatment

4.8 out of 5 4.8 out of 5 rating

Information the care provider gave you about medications(if any)

4.8 out of 5 4.8 out of 5 rating

Instructions the care provider gave you about follow up care (if any)

4.8 out of 5 4.8 out of 5 rating

Degrees to which care provider talked with you using words you could understand

4.8 out of 5 4.8 out of 5 rating

Amount of time the care provider spent with you

4.8 out of 5 4.8 out of 5 rating

Your confidence in this care provider

4.8 out of 5 4.8 out of 5 rating

Likelihood of your recommending this care provider to others

4.8 out of 5 4.8 out of 5 rating

Most recent comments

Patient comments are gathered from the Press Ganey Pateint Satisfaction Survey. Comments are displayed in their entirety and are anonymous for patient privacy.

09/24/2018
"very honest, calm and never feel rushed"
09/22/2018
"Upshot: I recommend Dr. Siegelheim routinely to friends and acquaintances. Excellent physician, consistently thoughtful, insightful, and easy to discuss medical issues with."
09/15/2018
"I have been a patient ofDr. Siegelheim for about 40 years. He is excellent I wouldn't continue with him if he didn't have my complete confidence."
09/03/2018
"Dr Mark seigelheim has always treated me professionally and with friendliness and competence...a wonderful doctor. so gad I have him guiding me."
08/21/2018
"Love them all."
08/13/2018
"already sent my brother"
07/14/2018
"doctor has been wonderful listens to other problems I have and is a great help"
07/04/2018
"The doctor always greets happily, explains all procedures and medication carefully. Lastly, he never rushes and his staff are very empathetic. Their laughter is contagious!"
06/18/2018
"This was just a 6month well care visit with a blood work check for high cholesterol, but I have been in the office when I had an issue and everything was well explained to me."
06/18/2018
"dr siegelheilm always takes his time with me, answers any questions I might have. I never feel rushed. he is very thorough."
06/18/2018
"Dr. Siegelheim provides thorough intellectual assessments of current conditions as well as preventive measures (e.g., dietary) for possible developments. He is the essence of warm and friendly. He has it all as a medical care provider!"
05/30/2018
"Provider always enters room with a smile and my chart - shows interest how I am feeling."
05/29/2018
"Dr Siegelheim shows care and compassion for his patients and is an excellent healthcare provider. He is extremely knowledgeable, takes the time to listen to patients and answer questions and explain things."
05/24/2018
"Dr. Siegelheim and I have met 4 times. As time progresses I am sure my confidence will grow to "very good"."
05/12/2018
"Dr Seigelheim services have been excellent. He is caring and knowledgeable."
05/08/2018
"Good doctor."
04/26/2018
"I have the utmost confidence in Dr. Siegelheim."
03/31/2018
"I have been Dr. Siegelheim's patient for 26 years. At least 4 visits per year. Having logged in over one hundred you might think that I would certainly have a complaint or two. Well I don't, not even one!"
03/26/2018
"I have been a patient of Dr. Siegelheim's for at least 25 years. I trust him with my life. I just know he cares about me and my health and well-being. I could go on and on about how wonderful I think he is."
03/24/2018
"Very Good"
03/13/2018
"Dr Siegelheim has become an extended member of our family. My whole family now goes to him. He listens like we were his only patient and know I can call him at any time."
02/08/2018
"Makes us feel like family."
12/10/2017
"dr. kind and understanding always"
12/07/2017
"Very easy to talk to very compassionate and I love him as my doctor I don't know what we both would do if he retires. Please let him know how much we care."
12/06/2017
"Recommend him to everyone."
10/23/2017
"He's real and down to earth."
10/20/2017
"A doctor who in my eyes & his facility are the best in taking care of the patient will be recommended to others without any hesitations (angels on earth)."
10/17/2017
"I do recommend people now and also in the past. #9. A+++! "
10/16/2017
"Very good."
10/06/2017
"It's important to feel like you are being listened to. I really am very happy with Dr. "S." Also like his approach to treatment & diagnosis."
09/18/2017
"As noted previously herein, excellent service and information in all respects. Upbeat and warm group of professionals, as well. Will recommend (and have done so already) to others. Office renovations very attractive, incidentally. Adds to pleasant vibe."
08/23/2017
"I have been going to Dr. Siegelheim for over 20 years and consider him an EXCELLENT doctor."
08/17/2017
"No bad experiences they are very caring people!!! They give all the you need at all times!!"
08/17/2017
"recommending friends and family, absolutely."
06/19/2017
"Always professional and friendly"
05/27/2017
"again if I was not happy I'd leave"
05/20/2017
"I plan to recommend this practice to my husband as well"
04/17/2017
"All good, never a bad experience."
04/12/2017
"Dr. Mark Siegelhiem is a doctor of doctors, there are very few like him!!!"
03/28/2017
"I have total confidence in Dr. Siegelheim and have been seeing him for more than 20 years. He has taken good care of my health."
03/27/2017
"Great experience with the staff and Dr. Siegelheim. They won my confidence!"
03/27/2017
"I had to switch PCP. This was the first appointment with this care provider. He is 1000% Better than my prior PCP and I liked my prior PCP a lot. Dr Siegelheim Is a very thorough and detailed Doctor. I could not be happier that I made this switch of PCP."
03/23/2017
"Always excellent experience."
03/17/2017
"Always a good experience."
03/13/2017
"He's great MD. attentive and caring."
02/24/2017
"Good."
02/21/2017
"Dr. Siegelheim - excellent."
01/25/2017
"I've been a patient of Dr.Sigelheims for over 10 years and well before he joined the Northwell Family / System he has always. been a great Physician conscientious and accessible during any health challenges I encountered as a patient under his care."
01/10/2017
"always secure in treatment and care feel very confidant in this md"
11/07/2016
"The doctor is kind, understanding - in short; excellent."
10/18/2016
"Always a good exp."
09/27/2016
"Perhaps less time devoted to computer."
09/20/2016
"always make you feel important always listens and explains"
09/17/2016
"what can I say I've been seeing Dr. siegelheim for over 40 years!"
09/17/2016
"best office we were ever associated with."
08/08/2016
"Love my doctor. Good ones like him are very hard to find."
06/02/2016
"Dr. Siegelheim is the BEST! We love him & recommend him to everyone."
05/30/2016
"Overall excellent experience."
05/22/2016
"been with dr. seigelheim a long time could'ent think of going to anyone else i have complete confidence in his knowledge and ability"
04/19/2016
"Dr. Siegelheim is a very good Dr. His patient care is excellent."
02/08/2016
"been going to md a long time I have complete faith and trust in him"
11/03/2015
"Love these guys."
05/28/2015
"Good - but too much time spent on computer."
05/26/2015
"Excellent service with this provider - for many years - 35-40 yrs."
05/21/2015
"Excellent."
02/25/2015
"OUr provider for MANY years - none better!!!"
02/13/2015
"Dr. Siegelheim is a very caring doctor - He's "up to date" on new medical issues - He really listens - I feel he really does his very best."
12/15/2014
"They are the best!"
10/30/2014
"Always a satisfying experience."
09/19/2014
"He is now our entire family doctor -"
08/20/2014
"Dr. S. has been my dr. for many years. He is the best."
08/12/2014
"Good."
07/17/2014
"Never had a complaint."
07/17/2014
"Good experience."
06/03/2014
"I have recommended several patients who now go to the practice."
05/16/2014
"Good."
05/08/2014
"Very good experience."
05/05/2014
"I trust my doctor with my life and well being."
05/02/2014
"Good."
05/02/2014
"Good."
04/29/2014
"Very personable - gave me all the time I needed - pleasant atmosphere."
04/02/2014
"He's the best."
03/07/2014
"All experiences are very good."
01/03/2014
"He's caring and understanding. He takes the time to make sure you understand him."