Gynecologic Oncology Associates
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Gynecologic Oncology Associates
For more than 25 years, HOAG GYNECOLOGIC ONCOLOGY (HGO) has cared for more women with female cancers on a yearly basis than any other practice in Orange County. We are the leaders in Southern California for treating all gynecologic cancers, in one intimate and inclusive setting. No other group provides comprehensive diagnosis and treatment for gynecologic cancer -and access to clinical trials- all within the same practice.

That means better continuity of care, state-of the art treatment including the latest robotic and advanced endoscopic surgical techniques, and more convenience for patients at a vulnerable time in their lives. We even usher you toward a better quality of life for follow-up and rehabilitative care after treatment is finished.
Services
You will get a chance to meet all of our office staff as time goes by. All of these women want to help you in any way possible so don't hesitate to call if you have a question about your appointment, test authorization or insurance coverage, etc, . Our Physician Assistants are an integral part of our practice.
We have multiple consultation and treatment offices conveniently located throughout Orange and LA counties. Please call our main line to schedule your appointment at any of our offices. Our physicians are affiliated with nearly ten hospitals and our team is constantly working to grow our affiliations.
Don't forget to bring these to your appointment. 1. Please give your home and cell number to our front office staff. 2. Keep your cell phone nearby and turned on 24 hours/day so that we can reach you with important information. 3. Please remove any privacy block you may have placed on incoming calls.
I recently had a robotic hysterectomy performed by Dr. Brown after a referral from my regular gynecologist who was not available to perform the procedure. I now have a new lease on life and would highly recommend him to you. If you are having peri-menopausal issues and need a hysterectomy please don't put if off and suffer like I did for over 5 years waiting for mother nature to take is cause.
Reviews (17)
Susie M.
Susie M.
Sep 03, 2021
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I was recently diagnosed with endometrial cancer. I was a complete and total mess. I was referred to Dr Castaneda and I am so thankful I was! I went in on a Wednesday and had surgery the next Thursday. He will look you in the eye and tell you the absolute truth. His bedside manner couldn't be any better. He ended up doing a robotic laparoscopic hysterectomy. I went in at 7:30 am and was home by 2! I have had no pain or complications. ( I'm not a spring chicken, either). The office and Dr Castaneda have called to check on me. Thank the good Lord, Dr Castaneda got all of it and
Liliana R.
Liliana R.
May 09, 2021
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I needed surgery for cyst removal on each ovary. Dr Brown and his staff were caring and professional. They maintained regular contact with me and kept me in the loop of things. It was reassuring to never feel like I didn't know what the next step would be or what the whole process would be like.
Janie Druiff
Janie Druiff
Dec 06, 2020
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I recently underwent an unexpected complete hysterectomy. Dr. Mendivil was very professional, knowledgeable and kind. He explained the complete procedure thoroughly and never I felt rushed. He has a very good bed side manner which is hard to find in this day of medicine. I would highly recommend him as a doctor.
Sara S.
Sara S.
Jul 23, 2020
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The team here is fantastic. The front office was efficient in getting all my medical records prior to my first office visit with Dr. Beck. Dr. Beck was comforting, caring and took all the time to answer all of my questions. When I had my surgery, once again she took all the time to make sure I was comfortable and had everything I needed for recovery. Highly recommend Dr. Beck!
Bee O.
Bee O.
Dec 29, 2019
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I just had robotic laparoscopic by dr Brown!!!! I never had surgery before I was so nervous!! He made me feel comfortable. He is the best very nice smart , polite and caring !!!I i recommended him he is the best of the best !! Hands down
Rebecca B.
Rebecca B.
Jul 18, 2019
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Dr Beck is amazing!!!! She saved my life. She's excellent at what she does and she loves her patients!! Best doctor in the world!!!
Shari P.
Shari P.
Jul 01, 2019
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Dr Brown and his staff are wonderful. I needed a hysterectomy and didn't have a gynecologist. I got right in into see him and he had my surgery scheduled within 2 weeks. I feel so much better and look forward to getting back to riding my horse and running again soon.
Clare T.
Clare T.
Mar 22, 2019
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I recently had a robotic hysterectomy performed by Dr. Brown after a referral from my regular gynecologist who was not available to perform the procedure. I now have a new lease on life and would highly recommend him to you.

If you are having peri-menopausal issues and need a hysterectomy please don't put if off and suffer like I did for over 5 years waiting for mother nature to take is cause. Dr. Brown was amazing I only needed pain medication for 24 hours and then just followed the post operation instructions. I understand some of his patients are back at work in 10 days!
Patricia P.
Patricia P.
Nov 28, 2018
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Dr. Mendivil performed a radical hysterectomy for me in October 2017. In result, he had nicked my bladder and caused a fistula. He did not identify this error and neglected to informed me that this occurred. It wan't confirmed till 2 months later. During those 2 months I had dealt urine leakage and severe muscle spasms that required medication. For 7 months I had to live with a catheter while waiting for the inflammation to subside from the hole in my bladder before I could get my surgery in April (I am so thankful to the urology team at UCI, they did an amazing job fixing his error)
S. B.
S. B.
Aug 06, 2018
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Terrible, insensitive, and unprofessional office. The kind of place where you feel embarrassed being a woman and having female issues. DO NOT put yourself thru the uncomfortableness or embarrassment. And, plan on waiting at least 30-45 minutes in the waiting room and another 30-45 minutes in your room when they take you back....
Irish Lady G.
Irish Lady G.
Jun 08, 2018
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This group and Dr. James "Jeb" Brown are as good as it gets! From the phone call to make my appointment to my exam with Dr. Brown I felt very comfortable and cared for. Within a few short days the group had all my medical records and were ready to proceed with my exam. Dr. Brown is a 'salt of the earth' kind of man who instantly made me feel at ease yet he also made me feel confident he knew exactly what he was doing. He took his time during the exam and made a challenging experience a lot more bearable. I would highly recommend this group!
Keri Z.
Keri Z.
Apr 05, 2017
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Everything about this office is fantastic! From Michelle who helped get a crazy records situation from my previous oncologist handled, to the lovely woman at the front desk, to the nurse who worked with Dr Abaid. And no oncologist has EVER made me feel as comfortable as Dr. Lisa Abaid did. She walked into the room and confidently introduced herself and told me she had already reviewed my records. She was prepared in every way to handle my Lynch Syndrome mutation and made sure to order or perform all of the appropriate tests. Even when one test wasn't successful she walked me through what her
Ellie J.
Ellie J.
Jun 13, 2015
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Dr Abaid is one of the most amazing and talented Dr I know (And I am a nurse I work with plenty) I had just moved to newport two weeks prior before being rushed to HOAG hospital. I had not been to the hospital in 26 years, leave it to a fibroid tumor the side of a baseball to ruin my record. I had a great ER Dr who knew I was in trouble, he himself contacted Dr Abaid on a Sunday. Abaid told him to get me in her office the following morning which was Monday, she will take care of me. That she did! I met her and she had already seen all my information from the hospital and simply told me we need
Andrea P.
Andrea P.
Dec 19, 2013
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I was hospitalized at Mission for a kidney stone in April. They found what appeared to be cancer and after the biopsy discovered it was. I was referred to This group and Dr. Brown specifically by Dr. Alinsod. I had an appointment within a day and my hysterectomy within two weeks. I was cut from stem to stern. Ovarian cancer stage IIIC. I had Taxol chemo every week and Carboplatin every three weeks for over six months. I am now on a Taxol once a month for a year. this is for maintenance. In a year I will need a double Mastectomy due to the BRCA1 gene I tested positive for. My biggest fear has always
Ron L.
Ron L.
Aug 06, 2013
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Been to Newport Beach hundreds of times...

I probably passed this place just as many times.
Not paying attention as to what this building was
Or the beautiful people that work here.

Several months back...I took my sister in law here.
Not realizing that this facility assists patients with cancer.
I've driven here several times...
to get chemotherapy for my friend..

The first check in...you look out the window
and see a nice view of the beach about a 1/2 mile away.
Everyone that works here is fantastic.
Dr Mendivil and his assistant Julie are fantastic.

There is a wall of actors, actresses
Margaret L.
Margaret L.
Apr 11, 2013
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Dr. Abaid is AMAZING! I had my surgery 3 weeks ago today. This was the easiest surgery I have been through, and recovery has been better than I had expected. I have compared my experience and scars with a few other women, and it seems Dr. Abaid does the minimum for invasive- I have seen bigger/higher scars for lesser surgeries (still robotic). I am SO pleased and can honestly say GO SEE HER and don't worry... you will be in good hands.

Dr Neuman was my Anesthesiologist. He was also very professional. He listened to ALL my concerns, had terrific meds for nausea for me, and the hospital took
Freedom Of Speech Fan M.
Freedom Of Speech Fan M.
Oct 20, 2012
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The office is located near PCH and Hoag Hospital. The waiting room has a beautiful ocean view. The nurses and staff are friendly and professional. The wait time varies and there can be a little bit of a lag time for appts. I usually have to wait 20-30 minutes to be seen. Dr. Brown has been my doctor for the past couple of years. He has the best bedside manners and truely cares about his patients. He is one of the only doctors I have ever met that is quite humble (not an once of arrogance) and treats patients as partners in their treatment. I have seen Dr. Abaid also and she was also courteous