My first visit was amazing!!! The office women are so nice and the office is clean. The doctor took his time talking to us and explaining everything that other doctors never took the time to do. He has an awesome personality and always responds to my questions right away. I would highly recommend this office.

Most awful experience of my life! Do not trust Yonatan Mahller with your journey to become a mother, that’s all I’ll say. You’re basically a test rat in a cage for this man who uses the facade of his “5 star reviews” to get away with the unspeakable. Run!

I went to Dr. Mahller for a pre-pregnancy planning meeting. I was looking for a doctor that has time for the patient as I start my pregnancy journey, I had a friend recommend Dr. Mahller. Both Dr. Mahller and Dr. Chang were present. They really listened to me and gave me so much information. After all of the information, we came up with a great plan and the next steps in my pregnancy journey. I like that I can call the office and the staff will answer. Dr. Mahller truly cares and he has a great staff supporting him. I already feel comfortable after just one appointment. I will be sticking with Dr. Mahller and Dr. Chang!Also, the office is easy to get to with plenty of parking. The patient rooms have natural light and the office space is clean and welcoming.

There aren’t enough good things to say about Dr. Mahller! He was my OBGYN through my first pregnancy which could have been a very nerve-wracking experience as it was filled with many questions and unknowns. However, Dr. Mahller helped to make the whole experience stress free. He has the absolute best sense of humor, bedside manner, and calming affect of any Dr. I have met. He also made himself very available for any questions that I had. Not only was he fully present to answer any and all questions at our appointments, but he promptly answered every message I sent to him through the portal whether it was after hours or on weekends. He also has a warm and welcoming office staff that added to the ease and enjoyment of the many appointments. I had the best experience with him and his staff, and gave birth to a beautiful and healthy little girl! Thank you Dr. Mahller!

Dr. Mahller is the best! He saw me during my first pregnancy and again now for my second one.He is very professional and knowledgeable. Takes his time to explain things and answer any questions. The way he has cared for us gave my husband and I so much peace during a potential nerve wrecking time.His staffs is super professional and friendly as well! Always there to help. Thank you Dr. Mahller and team for everything you do!-Ernesto and Lilia

I absolutely loved my visit with Dr. Mueller and staff. They were very patient, kind, and understanding about my situation. They deserve a five star and more. Highly recommended👍🏾. The place to go for awesome OBGYN care.

There truly is no comparison when it comes to Dr. Mahller and his staff. My last obgyn retired during the beginning of the pandemic and I found out that we were expecting at the beginning of July. Our last pregnancy was a miscarriage so I needed to find a new doctor ASAP so I could have my pregnancy monitored closely since I am considered high risk. I chose Dr. Mahller based off of his great reviews and my husband and I could not be happier with our choice. We were nervous because of our miscarriage but Dr. Mahller was always extremely thorough in explaining every detail of what was going on, the cause and always very honest yet reassuring that everything was going to be ok. He always took the time to answer all of our questions and concerns. We were never made to feel rushed. We left every visit and always commented how happy we were with our choice and that it was worth the drive from Long Beach to see him. The ladies who work at the front are always very friendly and helpful with anything we ever needed. We could not have asked for a better doctor or a better experience as we prepared to welcome our baby girl.

Went for a womans wellness check, and Dr Mahllers nurse practitioner, Amber, was wonderful! Office is very clean, and front desk ladies are very sweet. Will be back!

I have been seeing Dr. Mahler for close to 7 years now. He is truly a gem of a doctor. He takes his time with his patients and is incredibly patient and attentive even when I am asking the smallest of questions. I look forward to my appointments with him because he is such a kind and fun doctor, puts me at complete ease. I cannot recommend him enough, he is great!

Dr. Mahller was kind, funny, and informative. He gave us realistic expectations and information based on our hopes of getting pregnant.

Dr. Mahller is the most gentle and carrying doctor I ever had.

Very satisfied by his work and professionalism.My wife had a high risk pregnancy with twins. Dr. Mahller has always been very responsive to answer all our questions (first pregnancy).He definitely contributed to make this whole experience much easier.I strongly recommend him.

Absolutely the best OBGYN ever!

Best OB, Ive had 3, and the others do not even compare. Goes above and beyond to provide the best care and is never bothered to answer even the silliest of questions. Pretty sure Im done having babies so I will miss him and his staff terribly. The ladies are awesome! Wish I had found him sooner.

Dr. Mahller has an excellent bedside manner. My wife and I are expecting our first child. He does a nice job of explaining things in a step by step manner that is thorough without being overwhelming. He has been a real blessing in an exciting but somewhat stressful time. We were referred to his practice by a trusted friend who had a similar experience. Dr. Mahller is a superb physician and we highly recommend him.

Ended up in Emergency care being pregnant after his advice to take a medication without even providing lab tests! In emergency they took tests and prescribed me the medication I really needed. Never met such a neglect. Of course I changed the doctor.

I was looking to find a doctor that specialized in high risk pregnancies and possessed good beside manner. In the first visit my husband & I knew we made the right choice. We put our full trust in Dr. Mahller.

Super rad Doctor. Funny too and very informative. He gave me his undivided attention despite being super busy. Will be going back! His staff was a little.. grumpy which was a bummer but it was a super busy day for them so that could be why. One of the front ladies told my mom to use the downstairs bathroom when there is one inside their suite. It was pouring outside too! Loved Dr. Mahller though so I will be going back to see him.

Dr. Mahller and staff were amazing, from the moment I walked in the door my entire appointment only took 45 minutes. He was very kind and you can really tell he loves what he does. Very happy to have found him and his staff.

Cannot say enough great things about Dr. Mahller. He is very friendly, understanding and makes you feel comfortable throughout your entire appointment. If youre looking for a new OB look no further.

I can not put it properly into words how great of a person and doctor he is. He helped my wife and me with the delivery of our second child. His compassionate demeanor and amazing bedside report make all interactions with him great. We had some complications through our pregnancy and the whole time Dr Mahller made himself available at all hours for our numerous questions. On our delivery date he visited us frequently to check in and help the mood with his cheerful attitude. At some point the resident pediatric doctor questioned us if we were his personal friends because she had never seen an OBGYN spend so much time with normal patients. That is just the way Dr Mahller is attentive and genuinely cares about you from your first appointment and every minute after.

Dr. Mahller is the best OBGYN I have been to hands down. He is very attentive, courteous, knowledgeable and friendly during my visits. He always takes the time to ask and listen to my concerns which is so reassuring.

Just became a new patient with Dr. Mahller and I immediately felt more comfortable with him than my previous OBGYN. He is understanding, down-to-earth, and has the right amount of sense of humor. He eased my anxiety about some concerns I have been having regarding fertility. So glad I found him and look forward to going through my first pregnancy with him as our doctor.

Dr. Mahller is the BEST! Choosing a doctor to deliver my baby was a big decision for me and I’m more than confident with my choice. Dr. Mahller genuinely cares about his patients, gives it to you straight, and knows what he’s doing. My delivery was so beautiful and perfect, I can’t wait for baby #2!

Dr. Mahller is the whole package. Enjoyable interview, painless exam (yes, painless) and his front desk staff were very kind and accommodating. I didnt feel rushed and came away fully informed with all my issues addressed. You will find Dr. Mahller easy to talk to and thorough.

I was referred to him by a close friend of mine. My friend is visiting Dr. Mahller for her second daughter like she did for her first.I had a plnning consultation with him back in November 2018 for planning our first child to prepare my body for pregnancy. He answered all of my questions and concerns for planning. He also provided useful information and tips. He is very knowledgable and experienced. His magic hand shake on the consultation is a must lol. I believe he is number 1 in Orange County.

Never going anywhere else ever again. My 12 years pain is finally getting answers and attention.

Dr. Mahller was my OBGYN for a couple of years and I can honestly say after being with many previous OBs, this man is THE best doctor you will have the pleasure of knowing. His office staff has always been amazing, especially Patty!We moved away last year so I no longer see him, but he will always have a special place in my familys memories. Of course, he is smart and talented, but he is also kind and funny. After meeting him, you will feel like he is a friend youve known for forever.He is conveniently located minutes from the Sandy shores of Newport Beach and right across the street from HOAG. Do yourself a favor and switch to this guy!!!

Dr Mahller is incredible. I am a physician myself (and so is my husband) so we had high expectations for our OB/GYN. We are so pleased that he was our OB and delivered our daughter. He is kind, caring, intelligent, personable and made this very nervous first time high risk mom feel secure. He goes above and beyond for his patients, even came in on his day off (which happened to be his birthday) to deliver my baby. If you are considering delivering your baby at Hoag this is your doctor. Look no further

Dr. Mahller accepted to see me as a high-risk pregnancy at 35 weeks. He is a very dedicated, honest, and excellent doctor who gives time to his patients and answers all their questions.His clinic is clean, the staff is amazing especially Patty who is welcoming and helpful. The waiting time at his clinic is a maximum of 10 minutes, also there is enough room and space for you to sit down and relax.Dr. Mahller delivered my third baby C-section at Hoag and I highly recommend him as he is truly the best. He also personally answers your messages via email whenever you need him. I have read all the reviews before choosing him as my Ob and everything written about his excellence and dedication is true.

I am so happy with Dr. Mahller. I followed him from his previous practice. Im not a maternity patient- many years past that yet feel Im treated just as special.

Dr. Mahller is one of the best obgyns, if not the best. We have been seeing him since 2014 and he delivered our second daughter in 2016. My pregnancies are always so rough, with hyperemesis each time, but if it wasnt for Dr. Mahller and his awesome care, I probably would have ended up hospitalized. He has great bedside manners, always keeps you calm and relieved with whatever you are going thru. Although we live 45 minutes away and do not plan on having any more kids, I have continued driving the long distance to see Dr. Mahller because there is no other doctor like him. He doesnt treat me any differently just because I am not pregnant. Thank you Dr. Mahller for being such a wonderful doctor!

Dr Mahller is everything you could want in a doctor. He takes the time to address any of your concerns. He cares a lot about his patients and that’s very hard to come by these days.