1. David Chapman, MD

0

Yorba Linda, CA

Cancel

Open app

Search

David Chapman, MD

3.6 (7 reviews)
Closed • Closed

David Chapman, MD Photos

You might also consider

Recommended Reviews - David Chapman, MD

Your trust is our priority, so businesses can't pay to alter or remove their reviews. Learn more about reviews.
Yelp app icon
Browse more easily on the app
Review Feed Illustration

11 months ago

Helpful 0
Thanks 0
Love this 0
Oh no 0
Photo of De S.
5
37
19

5 years ago

Helpful 0
Thanks 1
Love this 0
Oh no 0

3 years ago

Helpful 0
Thanks 1
Love this 0
Oh no 0
Photo of Bill E.
8
32
36

8 years ago

Helpful 6
Thanks 0
Love this 2
Oh no 1
Photo of Lea S.
0
11
0

9 years ago

Helpful 3
Thanks 0
Love this 0
Oh no 0

7 years ago

Helpful 0
Thanks 0
Love this 0
Oh no 0
Photo of Shani B.
132
18
2

8 years ago

Helpful 1
Thanks 0
Love this 2
Oh no 0

Ask the Community - David Chapman, MD

You might also consider

Verify this business for free

People searched for Gastroenterologist 3,633 times last month within 15 miles of this business.

Verify this business

Richard McGuire

Richard McGuire

4.0(4 reviews)
0.1 mi

i had a referral from my primary care physician for dr. mcquire, as i had used him before for my…read moreproblems. upon getting the referral from my insurance in december, i called for an appointment. they could not see me until march 17th. i didn't ask any questions, as his staff and i have had issues before, i accepted appointment. on march 16th i received a phone call from "robbie" one of his office girls. she left me a message of what i have been diagnosed with and told me i have the wrong doctor..so she apparetly overrides my primary care doctor attempting to get me help wih my stomsch issues, she is fully aware i was his patient but cancelled my appointment andcsaidvto see a rhumatodologist..which i already have. referrels do not state your diagnosis but only the referring to the doctor referred to. ribbie at one puntbwhen my doctor was on vacation and refused to get my percsription for xanex refilled and i had to fight. xanex is a scary drug and i had been takng it for 2 years. the doctor i was using came back and refused my refill. prescribed a medication that should not have had as does not mix well with other prescriptions, thus rendering me extremely ill for several weeks. this revenge attitude is not something that one should not have to put up with. she works there as customer service and her liking or disliking a patient should stay at home. i am filing a complaint with my insurance, the state health departmentv against the dr. license.

Dr. McGuire has performed endoscopies and colonoscopies on all four of us. He, unfortunately,…read morediscovered colon cancer in my late husband and eldest son. He was instrumental in the treatment of my husband and referred my son to the City of Hope. His professionalism is excellent as are his skills. In addition, he genuinely cares about his patients. There is nothing impersonal about his care. I do not say lightly that I trust him with my life. No, he doesn't walk on water. Among all the physicians I've been exposed to he is what I would call the best. How many doctors take time out of their schedule to attend a Celebration of Life Service for a 32 year old patient who lost his battle with colon cancer?

Premier IFM - Integrative Functional Medicine - I was able to be present to see my daughter graduate May 28, 2024

Premier IFM - Integrative Functional Medicine

4.6(22 reviews)
1.6 mi

I am very thankful to Dr. Mortensen and his staff at Premier IFM. I came to his office roughly two…read moreyears ago. I was in bad health. I had chronic fatigue, brain fog, muscle and joint pain, low stress tolerance, along with digestive problems. I also needed some direction on nutrition regarding my hypothyroidism. I was subclinical and not taking any meds at the moment. He ordered blood work to see what my numbers revealed. His treatment plan included supplementation, a nutrition plan, along with lifestyle changes, and would help me treat leaky gut. I am happy to report it took a while to move all the pieces together, but the body started following. Now I am doing great. My energy is back, no more muscle and joint pain, my digestive health issues have resolved. The staff at Premier IFM are friendly and professional. They are ready to help with any questions and made all the moving piece for integrative care feel seamless. One thing I do want to mention, this level of holistic care is not cheap. Depending on your medical insurance, there will be out of pocket spending you might need to plan for. The staff can help you determine these details. If you find yourself dealing with painful, debilitating symptoms, and your health is suffering, getting seen and treated might be one of the best things you can give yourself. For me, I went from surviving each day to now thriving. I've regained my stride in life. Last but not least, I want to thank my Lord Jesus Christ for lording over my health and activating the healing process. He designed my body to heal and repair when the correct inputs from our environment and food we eat. Dr. Mortensen has been instrumental at helping my health journey with his knowledge and training to educate me on how to treat the imbalance in my health. God you get the glory and thank you for putting Dr. Mortensen in my path to regain my health, God bless you and your staff!

Update: I see your response. You should let your rude, unprofessional and unorganized wife know…read morethis information instead of posting it here. You were not the issue, it was trying to deal with her that was the main concern. She would not answer or return calls, would not give me my results after I paid hundreds of dollars for them, would not let me speak to a "doctor" and had a terribly rude demeanor. I thought maybe it was just to me, so as someone who has had my own successful business for 2 decades and likes to give everyone second chances because we all have bad days, I decided to test my theory. I had my best friend call to make an appointment and then my husband and she was rude to both of them each on different days, as well. Unfortunately for your career, she is a big problem.

Photos
Premier IFM - Integrative Functional Medicine - January before Dr Craig. This was my life for a year and a half in out of doctors, specialists and ERs with no answers.

January before Dr Craig. This was my life for a year and a half in out of doctors, specialists and ERs with no answers.

Premier IFM - Integrative Functional Medicine - Where you will be greeted by our friendly front desk staff. Plenty of reading material too.

Where you will be greeted by our friendly front desk staff. Plenty of reading material too.

Premier IFM - Integrative Functional Medicine - The gateway to better health. The doctors will greet and call you back through this door.

See all

The gateway to better health. The doctors will greet and call you back through this door.

Sung J Yoo, MD

Sung J Yoo, MD

4.5(8 reviews)
6.8 mi

I recently went to see Dr. Yoo for a colonoscopy. I found him through my insurance company website…read moreand saw that he was located nearby in Rowland Heights. When I called to make my appointment, I found out that Dr. Yoo moved his practice to a new building in Diamond Bar as of March 2024. Dr. Yoo's new office is located in the newly renovated Diamond Bar Medical Plaza, which was previously a Chuck E. Cheese (if you all were in the area when that was around). Looks like they are still in construction, as a couple offices are still vacant with plastic on the glass windows. The staff I encountered all very friendly and nice. Dr. Yoo was professional and clearly explained the process and indicated what I needed to do to prep for my procedure. I came in on a Monday and the front staff was able to fit me into an appointment on Thursday due to a last minute cancellation. This kind of procedure is not fun, but the entire staff made me feel comfortable the entire time, and the nurse who attended to me was so nice, I felt like my mom was taking care of me. =) She made sure I had extra blankets because I was cold and came by a couple times to made sure my IV was ok. I got a call the day after to follow up and see how I was feeling and if I was experiencing any issues. I appreciate the check in even though I was feeling good! I highly recommend Dr. Yoo if you need an gastroenterologist.

Excellent experience from start to finish. The doctor thoroughly reviewed all the preparation steps…read morebefore the procedure and made sure I knew exactly what to expect. The staff was friendly, professional, and made me feel comfortable throughout the visit. Everything was well organized, and I received outstanding care. Highly recommend!

Kumkum Patel MD - Board-certified gastroenterologist here for ALL your gut issues and colon cancer screening

Kumkum Patel MD

4.4(7 reviews)
10.4 mi

I write this review with immense gratitude for dr. Patel. After being very sick for several months…read moremy symptoms became increasingly worse and debilitating. Not knowing where to turn or whom to trust, thankfully a dear friend referred me to Dr. Patel. During my first appointment, Dr. Patel listened carefully to my concerns and understood that I was not only in severe pain but also nervous about being in a doctor's office. She quickly put me at rest with her compassionate and positive bedside manner. After her very thorough examination, she scheduled multiple tests. These tests identified serious but treatable GI issues, a hormonal imbalance, and a large ulcer that I was completely unaware of. Within a short time after starting treatment I was a newer better version of myself. Now, months later, I continue to improve and truly appreciate Dr. Patel for her incredible ability and willingness to address my medical issues.

After suffering with a very difficult bout of IBS for 10 weeks and not getting answers or help from…read moretwo doctors, I found Dr. Patel, who gave me LOTs of HOPE, along with important information re: my health problems, meds and supplements. She understood how exhausted I was and showed me warm caring as well, which I appreciated! The endoscopy she suggested went very smoothly, with her by my side to answer my questions, beforehand and afterwards. Since my two visits, I've called her office with questions to her medical assistant, Precious, and I received answers from Dr. Patel within a day as well as a personal reply from her via email. Though she is listed here with a Tustin, CA office, she has a Mission Viejo office as well--it's very convenient for me!

Photos
Kumkum Patel MD

See all

David Chapman, MD - gastroenterologist - Updated October 2026

Loading...
Loading...
Loading...