1. Michael F Sacco, MD

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Concord, CA

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Michael F Sacco, MD

3.1 (13 reviews)
Closed • 8:00 am - 5:00 pm

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Diane Kwan, MD - Big changes!!!! #gastrosleeve patient

Diane Kwan, MD

4.4(25 reviews)
3.3 mi

My 14 year old son actually asked me to give Dr. Kwan a 5 star review! After his surgery, he said…read moreto me; "Mom you should give her a good review because she was really good!" Mom was happy and son was happy. So, here it goes.... I had already seen another surgeon, but didn't get good vibes on that one and decided to get a second opinion. At a CPR course with other doctors, I asked if anyone knew a surgeon with good clinical skills that does hernia repairs. Her name came up, so among surgeons, she is a known quantity. When we went in for our consultation, there was very minimal wait at Epic Care (we all know how long medical offices can make you wait for appointments). The staff was polite and professional as was Doctor Kwan at our initial appointment. Dr. Kwan has great bedside manners-great communication skills! She explained everything to us and our son. Her surgical/financial coordinator was easy to get a hold of to make arrangements for scheduling and finances. On the day of the surgery, we went to their Aspen surgical facilty located right next door to John Muir. The nurses and anesthesiologist were super friendly and helpful to us parents and very accommodating to our son. After the surgery, the nurses made sure our son was as comfortable as possible. Over the recovering week, the nurses called our home and sent our son a get well card personally signed by the staff which I thought was a nice touch. Thank you Dr. Kwan for being so nice to our son and taking great care of him. I definitely recommend Dr. Kwan at Epic Care to anyone needing abdominal surgery!

I saw Dr. Diane Kwan in June 2025 for a suspected hernia above my belly button. She diagnosed an…read moreumbilical hernia and confirmed it with an ultrasound, which clearly identified the hernia in the exact area where I had pain and a visible bulge. She performed surgery in October 2025, but I received no post-op communication from Dr. Kwan. I had to proactively call with concerns when the bulge remained. At my follow-up, the issue was still present, and a CT scan later confirmed the hernia had not been repaired. Dr. Kwan then admitted she had repaired a different hernia during surgery and missed the one that was originally diagnosed and causing my symptoms. I was never informed before or after surgery that the correct hernia had not been addressed or that a new/different one was present. I only learned this weeks later after raising concerns myself. This experience was extremely concerning and disappointing, both in terms of the surgical error, lack of communication, and now the need for repeat surgery.

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Diane Kwan, MD - Dr. Diane Kwan

Dr. Diane Kwan

Diane Kwan, MD
Diane Kwan, MD - My before 267 lbs to my after 140 lbs.

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My before 267 lbs to my after 140 lbs.

Epic Care

Epic Care

4.6(11 reviews)
4.3 mi

Generally, when you are referred to a surgeon, you know you're going to be having surgery. My…read moreprimary told me she referred me to Dr. Kang because she knew her to be very clear on all options & would only recommend surgery after considering all other options. Dr. Kang was very thorough explaining the pros and cons of my condition and I left feeling comfortable for the first time in considering having the surgery. I had avoided it for several years. I did decide after several months to go ahead & was well taken care of. She had given all the information about what to expect, so my concerns were minimal. She is easy to talk to, direct, very knowledgeable; and has a caring personality with her patients. I highly recommend her if you are need of a professional surgeon.

; ( Doesn't Follow Proper Protocol in a Timely Manner , Considering Life Threatening…read moreIssues remain Un- Detected, Due Dr. E.Zang's Hunger For The LOVE OF MONEY. Her Role as A Surgeon is Exasperating !¡! Dr. E. Zang, Perhaps Was Once a Genuine, Caring Surgeon @ The Start of Her Practice within The United States of America. She is Slothfully Slipping thru the Cracks in Our Phenomenally Huge Country, Whom Seriously Needs Appropriate Supervision, From Authorities Working WITHIN The Administration , Assisting Her Back On Track, Filing Pertinent Paper Work, Where A Lg. Lack of Concern Lays. With the Severity Of Patient's HEATH, She Has Caused Us Wearied Patient's To intervene, Overstepping Staff, Handling Ins. Requirements,, In Receiving Necessary Medical Procedures. She Does Show "Beside Mannerism, & I intend N disrespect.

Steven M Young, MD, FACS - Proud graduate from the wound care clinic

Steven M Young, MD, FACS

5.0(6 reviews)
4.3 mi

"The Art and Science of Wound Care."…read more I feel fortunate to be in an area that has such excellent surgeons. After a nasty mountain bike accident, I was treated at the Walnut Creek wound care center, with Dr. Young as the surgeon. After watching the team in action, I can see that the surgeon is a bit of a scientist, as well as an artist, promoting the healthy healing of a wound. It is not a trivial process. You really have to know what you're doing. I appreciate the dedication and professionalism of Dr. Young. I feel like I was in good hands the entire way. Thank you!

Dr. Young is hands down the most talented, considerate, kind, healer I have ever had the pleasure…read moreof having as a physician of any kind. Last august I had a seemingly easy surgical procedure that went awry, these things happen. But Dr. Steven young was the general surgeon called in to repair the damage of having my bowels actually nicked, and he literally saved my life. It was quite an ordeal, with infections, abscesses, pancreatic issues, and finally, a large and painful incisional hernia that couldn't be operated on for four months after the infection ended. Saying that I was scared going into the hernia repair surgery was an understatement. But Dr. Young is so confident, kind, and non stressed I knew I was in great hands. Because of all my previous abdominal surgeries and the emergency one I had last August, Dr. Young originally recommended I consult with a plastic surgeon about doing what's called "components separation" in addition to a mesh to hold in the hernia. I had that consultation, but I decided that I wanted Dr. young to do that specialized surgery himself. At first he was humble and reluctant, but he agreed to do that procedure if it was indicated when he opened me up on March 25, my surgical date two weeks ago. I marvel each day at how beautiful and sculpted my abs look now. I have a six pack, it's really work of art, what he has done for me. And I know that's just the icing on the cake, the internal mesh and hernia fix as well as the reconstruction of 4 to 5 layers of my muscle was a difficult task, but Dr Young did a great job. I used to think I should only find arrogant, conceited, and cocky surgeons, because I heard if you had a surgeon with a good bedside manner and a kind demeanor, he wouldn't be as good. That is completely untrue. Dr Young also runs the John muir wound care clinic, he plays in his Church band, he is a dedicated father to his children and a loyal husband, he represents the best qualities out there. He is supremely confident, but never arrogant. He is patient, and explains things well. He even very subtly told me that losing weight would really help the abdominal hernia repair surgery, and I did, I lost 45 pounds in five months. :) Doctor's orders were a huge motivator, and especially Dr. Young's orders! There was no way I could have gotten through all this over the last eight months without the superior surgical skill as well as the knowledge and experience that Dr. Steven Young has. I wish I could give him ten stars here

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Peter Mazolewski, MD FACS

Peter Mazolewski, MD FACS

4.1(9 reviews)
3.2 mi

I first met Dr Mazolewski back in 2009 as I was transferred to John Muir Medical Center in the…read moremiddle of the night after suffering for more than 12 hours of sharp stomach pain. I was 33 weeks pregnant. I was not in labor. The doctors that had taken care of me earlier that day could not make a diagnosis because I needed to get a CT-scan to see what was going on "behind" my baby. I was scheduled to get the CT-scan sometimes the next morning. However, when Dr Mazolewski, who was the surgeon on duty that night, heard about my symptoms and my case, he came up to my room to talk to me and examine my stomach for about 5 minutes. After that time, he determined that it was too dangerous to take a chance and wait for the morning CT-scan, wheeled me down to the OR and an hour later... I was awaken by the nurses and I was told my appendix was out but my baby was still safe and warm in the womb. My appendix was about to burst and waiting a few more hours would have put my baby's life (and mine) in serious danger. My husband and I are very grateful that Dr Mazolewski took some time to look thoroughly into our case rather that just "wait and see". Some of you have complained about the Dr being late. Well, Dr Mazolewski put my surgery ahead of some other ones that he had scheduled and it saved my baby's life! Maybe next time Dr Mazolewski will be late for my appointment and will save your life!

You have got to be kidding! As a fellow physician I can not believe you went public with that…read moreletter. It was irresponsible, and against your Oath to do no harm. Have you ever heard of " error on the side of caution?" I hope the medical board takes action as well as the reserves. The military generally doesn't care for members who put the initial after their name and go against public health mandates! You are a disgrace to the profession!

Michael F Sacco, MD - orthopedists - Updated October 2026

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