4
4 Ratings with 4 written Reviews
![]() | ![]() | ![]() | |
| David B Koller, MD | Dr. Katherine Facklis, MD | Dr. Sarah Elizabeth Koller, MD | Dr. Eduardo Juan Velayos, MD |
| Colorectal Surgery | Colorectal Surgery | Surgery | Colorectal Surgery |
| Accepts New Patients | Accepts New Patients | ||
| 33 Years of Experience | 15 Years of Experience | 66 Years of Experience | |
| No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option |
| Speaks English | |||
| El Segundo , CA | West Hollywood , CA | Los Angeles , CA | Los Angeles , CA |
| Med School: The University of Texas Health Science Center at Houston, Texas | Med School: Rush Medical College | Med School: Drexel University College Of Medicine | Med School: Universidad Nacional De Rosario Facultad De Ciencias Medicas |
Current Profile | View Profile | View Profile | View Profile |
David B Koller holds an active medical license in the state of California.
Medical Doctor with an active medical license in the state of California that expires in 2026.
Completed their fellowship at Brown University and Ohio State University.
Completed their residency at Ohio State University.
Graduated from The University of Texas Health Science Center at Houston, Texas.
David B Koller's NPI number is 1417367517.










Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.
Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.
Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.