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Office Hours

  • Mon:8:00am - 5:00pm
  • Tue:8:00am - 5:00pm
  • Wed:8:00am - 5:00pm
  • Thu:8:00am - 5:00pm
  • Fri:8:00am - 5:00pm

David B Koller, MD

Colon & Rectal Surgeon - General

Biography

David B Koller, MD is a Colon & Rectal Surgeon - General practicing in El Segundo, CA

He has not yet shared a personalized biography with Doctor.com.

Featured Review See More Reviews

Warm engaging visit…

Anonymous

Summary

Provider Training

UniversityDegreeFocusGraduated
The University of Texas Health Science Center at Houston, TexasDoctorateOtherNot Specified

InstitutionFocusYear
Residency - Ohio State UniversityOtherNot Specified
Fellowship - Ohio State UniversityOtherNot Specified
Fellowship - Brown UniversityOtherNot Specified

Specialties

Languages Spoken
English
Medical Specialties
  • Colon & Rectal Surgeon

Accepts New Patients: Yes

Payment Options

Payment Details

Reviews

Average Rating: 4.4
Number of Reviews: 9
Most Recent Review: 01/15/2026
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Provider Evaluation

Listening Skills
Clear Explanations
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Verified Patient

Warm engaging visit...

Warm engaging visit

Anonymous 01/15/2026
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Verified Patient

Provider asked what was going on...

Provider asked what was going on with me when he entered the exam room. I gave him a chronological breakdown (time wise) as to what I had been experiencing with regard to some hemorrhoid discomfort I had been experiencing since the last week of December 2024. I also told the provider that in the first or second week of February 2025, I had suffered what felt to be a hamstring pull injury that I was wondering could be be possibly contributing to or aggravating my hemorrhoid problem in some way. The provider didn't respond or elaborate regarding that situation. I told the provider that I hadn't been experiencing any bleeding (bright red or dark looking coffee grounds blood of any kind) and no pain with bowel movements. I then went on to tell the provider that in March and April of 2025, I had seen a gastroenterologist from a different medical facility that had performed two rubber band ligation procedures. One procedure in each respective month, but with no relief on my part with regard to my hemorrhoid problem. I then told the provider that I had requested from the gastroenterologist that I had seen previously about trying steroid suppositories to see if that might help resolve my hemorrhoid problem. The gastroenterologist complied, and prescribed the suppositories, but unfortunately the suppositories didn't help. I also told the provider that the gastroenterologist, from the other medical facility, that it was their policy to do one rubber band ligation procedure at a time, and that they worked left to right. I told the provider that I asked the gastroenterologist "why?" Since my anal/rectal discomfort seemed to be emanating from the right side. The gastroenterologist didn't respond to me other than to say there was two nerve networks in that area. I mentioned this to the provider, he also didn't comment or explain anything regarding that matter. It had been nearly a year that I had been dealing with my current hemorrhoid flare up, I decided to make an appointment with a colon/rectal surgeon hoping the surgeon may have some additional information that could help. The provider asked if there was a history of colon/rectal cancer in my family, and I said "No." The provider went on to perform a digital anal/rectal exam, and then an anoscope exam. Both exams were very painful and uncomfortable. I've had four anoscope procedures done in the last six and a half years, and I know firsthand they can be very uncomfortable, but this last one by far was the most painful. I realize the provider was just trying to be thorough, but the procedure was agonizing to say the least. The very next day, I had my first painful bowel movement with some blood appearing on the toilet paper. After the anoscope on the day of my visit, the provider said I did have internal hemorrhoids, and they all appeared to be of the same approximate size on both sides of the rectum. He asked if I take any fiber supplements, I told him I was taking a generic brand of Benefiber. He told me to take Metamucil, and come back in six weeks for a follow up. I asked if I would have to do another anoscope procedure at that time, and he said yes. Besides the painful anal/rectal procedure, and the painful bowel movement with some blood the next day; what also bothers me is what little interactive communication the provider offered once I expressed everything that I did. More communication on his part would have been appreciated. It's nice to listen to the patient, but it's also nice to get some feedback from the provider with regards to the key issues the patient has brought up. I felt I didn't receive that, and was disappointed with the office visit.

Anonymous 12/17/2025
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Verified Patient

Very attentive....

Very attentive.

Anonymous 12/02/2025
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Verified Patient

He listens to his patient carefu...

He listens to his patient carefully & always explain what I need in my situation.

Anonymous 09/24/2025
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Verified Patient

Dr Koller rocks...

Dr Koller rocks

Anonymous 08/19/2025
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Verified Patient

Need to give patient advice or r...

Need to give patient advice or recommend automatically, not waiting patient to ask for. It will be better if doctors can offer more information.

Anonymous 01/15/2026
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Verified Patient

Your doctor has a good reputatio...

Your doctor has a good reputation, and I am hoping we are successful in resolving the issue. He was not a strong communicator and seemed very busy. I had to ask the nurse/assistant questions after the procedure to ask the doctor after he left the room. I guess you all are overwhelmed by patients? And I got no explanation for why I wouldn't need meds or packing or anything. I had to ask but still don't understand what all to expect next.

Anonymous 12/02/2025
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Verified Patient

Dr.Koller was very kind and list...

Dr.Koller was very kind and listened to me, he took time and I did not feel he was rushed even though he had other patients waiting. The procedure was timely and gentle.

Anonymous 11/11/2025
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Verified Patient

Very professional and ethical. O...

Very professional and ethical. Objective is to avoid unnecessary surgery, work toward the best outcome for the patient. Respectful and thorough. Would recommend Dr Koller.

Anonymous 09/17/2025

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Philip Chang, DO   -   Physical Medicine & Rehabilitation Physician
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Procedures & Services

Procedures & Treatments Offered

    Commonly Prescribed Medications

    David B Koller, MD has not yet listed the medications that he commonly prescribes.

    Accepted Insurance

    Accepted Insurance

    David B Koller, MD has not yet specified the insurance plans he accepts.
     

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