Dr. Karen Simon, M.D. received her B.A. from Stanford University in 1996. She then attended Northwestern University for medical school. She completed her residency at Cedars-Sinai Medical Center in 2004 and her fellowship at UCLA and Cedars in 2008. Dr. Simon has proudly been serving patients in Ventura County since 2008 and is very involved in field research. She enjoys educating the doctors and the community as a lecturer on topics such as colorectal cancer screening at St. John's Hospital.
Dr. Karen Simon, M.D. received her B.A. from Stanford University in 1996. She then attended Northwestern University for medical school. She completed her residency at Cedars-Sinai Medical Center in 2004 and her fellowship at UCLA and Cedars in 2008. Dr. Simon has proudly been serving patients in Ventura County since 2008 and is very involved in field research. She enjoys educating the doctors and the community as a lecturer on topics such as colorectal cancer screening at St. John's Hospital.
The reviews listed below were collected independently of Unio Specialty Care through rater8. Each review represents an authentic and verified patient experience.
Dr. Simon is very friendly and attentive. She took the time to listen and discuss my health issues and concerns, without me feeling rushed.
(6 days ago)
Dec-2025
excellent
(1 week ago)
Nov-2025
Karen is a awesome person, listens to me what a ask & say !
(2 weeks ago)
Nov-2025
Good listener, pretty personable, not rushed. Office staff were very nice. Office and hallways were spotless. Exam room was spotless. Scheduler was top notch too.
(3 weeks ago)
Nov-2025
Dr Simon is always so kind. She is an amazing doctor and I have complete faith in her!
(3 weeks ago)
Nov-2025
She is an exceptional doctor. Great patient communication.
(3 weeks ago)
Nov-2025
Knowledge and personality. No but by
(3 weeks ago)
Nov-2025
Best gastrologist I have had. Thank you Doctor Simon for the care you have given me over years.
(1 month ago)
Nov-2025
Dr. Simon is caring and knowledgeable.
(1 month ago)
Oct-2025
Very knowledgeable and friendly!!!
(1 month ago)
Oct-2025
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GI-Camarillo
4005 Mission Oaks Blvd. Unit A Camarillo, CA 93012
GI-Oxnard
2241 Wankel Way Suite A Oxnard, CA
Dr. Karen Simon, M.D. received her B.A. from Stanford University in 1996. She then attended Northwestern University for medical school. She completed her residency at Cedars-Sinai Medical Center in 2004 and her fellowship at UCLA and Cedars in 2008.
Dr. Simon has proudly been serving patients in Ventura County since 2008 and is very involved in field research. Dr. Simon is also a speaker for Exact Sciences on behalf of Cologuard and is actively associated in research studies. Additionally, she is a part of the Takeda Chloride Channel Council and a speaker for Amitiza, as well.
She enjoys educating the doctors and the community as a lecturer on topics such as colorectal cancer screening at St. John's Hospital, where she is also a part of the Ethics Committee.
When Dr. Simon is not treating patients, she enjoys spending time with her husband and two children.
Dr. Simon is very friendly and attentive. She took the time to listen and discuss my health issues and concerns, without me feeling rushed.
excellent
Karen is a awesome person, listens to me what a ask & say !
Good listener, pretty personable, not rushed. Office staff were very nice. Office and hallways were spotless. Exam room was spotless. Scheduler was top notch too.
Dr Simon is always so kind. She is an amazing doctor and I have complete faith in her!
She is an exceptional doctor. Great patient communication.
Knowledge and personality. No but by
Best gastrologist I have had. Thank you Doctor Simon for the care you have given me over years.
Dr. Simon is caring and knowledgeable.
Very knowledgeable and friendly!!!