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Crown Surgery Medical Group is a multi-specialty group specializing in Bariatric, Colon and Rectal, General, and Vascular surgeries. We offer the best medical care with an emphasis on patient care, patient privacy and wellness. Our board certified surgeons strive to providing our patients with superior quality, safety, satisfaction and the best possible results.

Each of our surgeons are board certified, highly trained, and certified to use the latest advances in medicine to care for our patients. One of the best ways to become more educated, feel the support of a community, and get advice from others is to take advantage of the bariatric surgery support groups that Crown Surgery offers.
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Most procedures are done robotically which can help decrease hospital stay time and speed up your recovery. Bariatric Surgery is only a "tool" and is not a "magic wand". The choice to undergo Gastric Bypass is as a last resort and effective utilization of this "tool" through commitment to proper diet, exercise, and support group attendance will ensure and assure you of long term and life long success. Remember that it is just as difficult to keep off the weight after surgery as it was before surgery.
Jill Hartman is a Registered Dietitian with over 10 years of experience providing nutrition counseling to patients in both a clinical and outpatient setting. Jill is passionate about motivating patients to have the confidence to make lasting lifestyle changes. Her goal is to provide the tools necessary to help patients make the best possible nutrition choices.
If Body Mass Index is below 40, you must be a high-risk candidate with at least two significant comorbidities. All patients must have failed other conservative treatment options that encompasses a dietary regimen, appropriate exercise, and behavioral support and modification.
Now that you have made the decision to pursue gastric bypass surgery, you have a commitment to prepare yourself mentally and physically for the surgery. Your role as the patient will require honesty, responsibility and cooperation with the surgeon and staff at Crown Surgery, as well as the interdisciplinary team that will be involved in your care, to ensure your success. If you are a smoker, stop smoking immediately. The decision to quit smoking will lessen your chances of anesthesia complications during surgery.
Reviews (9)
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Stan Orlowski
Aug 02, 2021
I Highly Recommend Dr Da Da and greatful that he was the on call surgeon. Dr Da Da Saved my life on 6/19 at Corona regional hospital. He is an Excellent surgeon with a Good bedside manner and explaines everything. Sincerely, Stanley Orlowski
Chris Carroll
Jul 15, 2021
Doctor Pollack was great. All the staff make you feel very comfortable and taken care of. Very appreciative of the nursing staff. They are so caring and helpful. The anesthesiologist was fantastic. I would be very happy if I ever had to go back in the future. These health care professional are so important and I am so grateful to all of them who helped me.
Fred Yousuf
Feb 15, 2021
It is good to know that there is a place that actually thinks about treating a patient right away. For months I have been in pain due to my reoccurring hernia. I went for a 2nd opinion to Crown Surgry medical Group and Dr. Dada told me exactly what the issue is oppose to the surgeon I have been going to since January of 2021. Dr. Dada gave me a permanent option oppose to a temporary on the 1st visit. I am glad I went there for a 2nd opinion. I highly recommend Crown Surgery medical Group.
Gene Bayless
Jan 24, 2021
Wonderful group of people. Received updates and reminders of appointment. Doctor was amazing. She made sure I understood the condition, and did not leave the room until all my questions were answered. She walked me out of the room to the front lobby and gave me her business card, stating call or come back if I had questions or concerns.
Kevin C. Carroll
Dec 20, 2020
Dr. Crown and his staff are amazingly down to earth and have very supportive bedside manor. I had and emergency surgery the lead me to meeting Dr. Crown who took care of me during this time and was great. Post Op and follow up we're great and easy. Quick in and out. I would recommend anyone who's in need of his services. To make and appointment so as to not need him in and emergency state. But if you do, they are great at what they do. Cheers!
Chris Pelayo
Dec 04, 2020
Had a great experience with my surgery. All the nursery were very kind and helpful, walked me every step of the way and made me feel like I was family. Anesthesiologist was great explained everything and had a great sense of humor.
Roni Hartman
Nov 10, 2020
I love Dr Dada! Great bedside manner. Very caring. My gallbladder surgery was easy. Into surgery at 8:45AM in my own bed by 11:40AM. Felt sore but great. His staff is awesome. Jeannie is amazing. Thank you to all, you are great!
Camilla Brock
Nov 05, 2020
From my first call to make appointment until today, the staff has been wonderful. I was able to get appointment scheduled within a few days, Jeanette handles the front office, she's so attentive. She got me all the forms beforehand, so I could fill them out at home. Answered all my questions and confirmed my appointment over the weekend. Wow. The office is very safe, have taken every precaution to minimize all Covid risks. Dr. Pollark is amazing.

He made me feel that he takes my reasoning for seeing him, as serious as I do. Gave me the time I needed, no rushing. Very professional but also "human" and kind. His assistant is also super kind, and patient. My overall is this is how a doctor and his staff should be. Im so happy I was referred to them and feel my health is now is proper hands. Thank you so much.
Alma Jansma
Jun 02, 2020
I go to their office in Corona CA.ALL the ladies in the office, in their different areas, are very professional, respectful, and always willing to help with a smile on their face! This is so important, especially when one is facing an upcoming surgery.kudos to all! Also very important to mention is that Dr. Cross, my surgeon, is a superb doctor who has an immense medical knowledge and a wonderful bed-side manner.after my recent surgery, he went to check on me every day at the hospital, including over the weekend.it meant a lot to me and my husband! Thank you Dr. Cross and the staff at Crown Surgery-Corona, CA