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    Optum - Montebello

    4.0 (4 reviews)
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    Lisa Marie Vasquez, MD

    Lisa Marie Vasquez, MD

    4.0(4 reviews)
    0.0 mi

    Absolutely the worst experience. We had a car accident and arrived at office at 4:13 for our 4:00pm…read moreappt. The receptionist told us to fill out the paperwork and said doctor will have to see if she can still see us. After we finished the paperwork we were told she will not see us and we need to reschedule. The receptionist kept telling us that we should have come at 3:45 to fill out paperwork and neither the receptionist and the doctor were flexible or understanding at all. We said that we will be gone for vacation for three weeks and asked if she can see us despite our late arrival due to reason beyond our control but they were adamant and cold toward us. Finally we gave up and asked them to provide us a doctor note for the hr office but they said since we missed the appt they wouldn't give us a formal doctor note! We had to be insistent and finally got some sort of form. Overall we're really disappointed with this medical group and particularly this doctor for being so distant, mean, and rude (by kept telling us we should have come in at 3:45 even though appt is at 4!). If this is the kind of attitude and treatment this doctor and medical group give to new patient then we will make sure that we will never pick anyone from this group and this doctor! This is not what a personalized attention and care any doctor or receptionist should provide and we were very shocked at the attitude and coldness that we were treated.

    This doctor has a lot of experience and patientiently takes the time to explain procedures in…read moredetail. I was very happy to know that i could ask questions and have reassurance that she was looking out for the best interest for my girlfriend. Thanks doc!

    Vinh N Vo, DO

    Vinh N Vo, DO

    3.7(15 reviews)
    2.9 mi

    Very very cool, intelligent and skilled OBGYN doctor in 626 area. Always smiling and in high…read morespirits before entering the patient room, always welcomes all my questions, and did my procedure efficiently and effortlessly. Never intimidating and never impatient to see patients, as per my experience.

    I just had another kid after 7 years. Because i have good employer insurance, with PPO, I decided…read moreto try another OBGYN and the nice high end Huntington hospital since san gabriel shut down due to corruption i heard . I remembered there is a long A** wait along with my wife at this office every time we visited; from 1.5 to 2 hr WITH APPOINTMENT LOL. I heard this place is crazy busy NOW and MORE bad negative reviews with some of those sneaky Vietnamese female receptionists. Funny how my current OBGYN talked sh***t about Vinh so I just laughed it out. Vinh still a good guy when i last remembered him. Also, his partner and wife, Helen IS nice too. Still, it's too much of a wait here.... He accepts medi-cal coverage so probably one of the main reasons it's so pack. He has two locations. Yo vinh, watch out with those sneaky Vietnamese receptionist employees of yours. They are up to no good with fake customer service to a-lot of your patients per your negative reviews lol. Good luck everyone! Just find a good job and company to get good health benefits!!! Then, you can go anywhere u want! Take care of your family and Be good!

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    Vinh N Vo, DO
    Vinh N Vo, DO
    Vinh N Vo, DO

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    Lisa Chang, DO, FACOG - Wonderful staff welcoming Dr Chang to the office!

    Lisa Chang, DO, FACOG

    4.0(63 reviews)
    7.0 mi

    I can't say enough good things about Dr. Chang! Her office is super efficient, her staff are all…read moreextremely warm and friendly, and Dr. Chang herself is phenomenal. She listens to your concerns, is extremely knowledgeable and has amazing bedside manner. Let's face it, no one jumps for joy over the idea of getting a pap - and some of us have had downright traumatic experiences in the past - but with Dr. Chang you can rest assured that it will be a breeze! It was over before I even knew it and it didn't even feel the least bit uncomfortable. She will also perform an ultrasound to ensure that your ovaries and uterus are structurally sound and there's no underlying issues which is a nice touch, especially since you don't need to schedule another visit solely for this as it's done in office by Dr.Chang herself! I'm so glad to have found her - a good OBGYN that makes you feel safe and comfortable is so hard to find these days but Dr. Chang is proof that they still exist!

    Lisa Chang is the worst of the worst doctors I have ever had. She lied, cheated and forced me into…read morean unnecessary C section only for her own convenience and serious infection to be hospitalized. On the first day I was in hospital for scheduled induction, she had 24-hour duty, went home to sleep and didnt return till i was into 37 hours on Pitocin. She poked my water without my permission, and caused me infection and my baby heart rate dropped into dangerous situations where I could only accept C section. She scolded me not to cry before entering the operation room, not worthy of crying?! while my life and my baby's life were in her hands. Only for a couple hundred dollars more, she wants a surgery instead of natural birth. For an insurance covered procedure, she lied to me its cosmetic, I paid her cash and extra. Later, both Blue Shield and Optum confirmed she never billed. After I asked my money back, she claimed through insurance. Don't even think twice, go find another doctor.

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    Lisa Chang, DO, FACOG - Office in North tower of Cotton Medical.

    Office in North tower of Cotton Medical.

    Lisa Chang, DO, FACOG - North Building

    North Building

    Lisa Chang, DO, FACOG - Thank you for visiting!!

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    Thank you for visiting!!

    Sandra Nieto MD - No soap or sanitizer only ultrasound Jelly

    Sandra Nieto MD

    1.8(40 reviews)
    1.7 mi

    If I could give zero stars I would. It took me a while to write this review because I just wanted…read moreto forget the whole experience. I came here twice months ago. I had a consultation the first visit. The second visit, I had an Endometrial Biopsy procedure performed, and it was one of the most traumatizing experiences I have ever had. I do have a high tolerance for pain. But, during this procedure, I cried so hard and kept saying "ouch". I heard Dr. Guzman tell the two young ladies that were shadowing him "It doesn't hurt that bad". He totally dismissed the pain I was going through as if he's had this procedure done himself and knows what it feels like. My mistake was hugging his a** right after because of the trauma. I did go back a third time to hear my results. But I AM NEVER GOING BACK!! Side note, you will be waiting for a couple of hours to be seen because I believe he overbooks himself. Quantity, Not Quality. Another side note, don't be fooled by the name. No female doctors work there. Just the assistants are female.

    Be very careful. They claim they accept insurance and at the end they make you pay in cash because…read morethey don't take your insurance. If this is the case why not tell you at the beginning. Now I'm being sue by Dr. Nieto because I refuse to pay cash for the blood work and the consultation. This is just absurd. This place is taking me to court for a $121.00 payment

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    Sandra Nieto MD - Bars on window

    Bars on window

    Sandra Nieto MD - Missing paint

    Missing paint

    Sandra Nieto MD - Rust on equipment, tape holding corner together

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    Rust on equipment, tape holding corner together

    Optum - Montebello - obgyn - Updated May 2026

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