KS
18 Years of Experience
Accepting patients
Who is Dr. Simon, Gastroenterologist in Oxnard, CA?
Dr. Karen Simon, MD is a Gastroenterologist, who primarily practices in Oxnard, CA with 2 additional practice locations. She has been practicing for over 18 years. Dr. Simon is fluent in English and Spanish, and is currently seeing new patients. Dr. Simon’s practice accepts Kaiser Permanente, Medicare, Aetna, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Simon’s office at (805) 983-0521.
What are Areas of Expertise for Dr. Simon?
Dr. Karen Simon, MD is a highly-rated, board-certified Gastroenterologist known for expertly diagnosing, treating, and managing a wide array of related conditions or procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Simon empowers patients to confidently navigate their health journey, specializing in Celiac Disease, Colon & Rectal Cancer Detection, Endoscopic Ultrasound, Endoscopy & Colonoscopy, Inflammatory Bowel Disease, or comprehensive wellness support. Serving the Oxnard/CA community, Dr. Simon is dedicated to enhancing lives through expert, patient-centered care.
What languages does Dr. Simon speak?
Dr. Simon and their clinical team can communicate with patients in the following languages:
English
Spanish
What conditions does Dr. Simon treat?
As a Gastroenterologist, Dr. Simon diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Simon. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology here.
Also known as:
- Colon Cancer Screening
- Health Screening
- Colorectal Cancer Screening (PDQ®)
- Screening Tests to Detect Colorectal Cancer and Polyps
- Tests to Detect Colorectal Cancer and Polyps
- Colorectal Cancer Screening
- Colonoscopy Screening
- Bowel Cancer Screening
ICD-10 Codes:
- Z1211: Encounter for screening for malignant neoplasm of colon
Also known as:
- Acid Reflux
- GERD
- Acid Reflux (GER & GERD) in Adults
- Acid Reflux (GER & GERD) in Children
- Acid Reflux (GER & GERD) in Infants
- Gastroesophageal Reflux
- Heartburn
- Indigestion
ICD-10 Codes:
- K219: Gastro-esophageal reflux disease without esophagitis
Also known as:
- Colon Polyps
- Colonic Polyps
- Colorectal Polyps
- Intestinal Polyps
- Bowel Polyps
ICD-10 Codes:
- Z86010: Personal history of colon polyps
Also known as:
- Stomach and Duodenum Disorder
- Stomach Disorder
- Gastric Conditions
- Duodenal Conditions
- Digestive System Disorders
ICD-10 Codes:
- K3189: Other diseases of stomach and duodenum
What procedures does Dr. Simon perform?
As a Gastroenterologist, Dr. Simon performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed by Dr. Simon. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology here.
Also known as:
- Colonoscopy with Polyp Removal
- Colonoscopy with Biopsy
- Diagnostic Colonoscopy with Biopsy
- Colonoscopy
- Colorectal Cancer Screening Tests
- Flexible Colonoscopy with Polypectomy
- Colon Polyp Removal
- Colorectal Lesion Excision
- Flexible Colonoscopy
- Colon Biopsy
- Large Intestine Scope
- Colorectal Cancer Screening
- Colon Exam with Biopsy
- Lower Endoscopy
- Colon Cancer Screening
CPT Codes:
- 45385: Colonoscopy, flexible; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique
- 45380: Colonoscopy, flexible; with biopsy, single or multiple
- 45378: Colonoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
Also known as:
- Upper Endoscopy with Biopsy
- Biopsy
- Endoscopy
- EGD with Biopsy
- Gastroscopy with Biopsy
- Esophagogastroduodenoscopy with Biopsy
CPT Codes:
- 43239: Esophagogastroduodenoscopy, flexible, transoral; with biopsy, single or multiple
Also known as:
- Flexible Sigmoidoscopy with Biopsy
- Colonoscopy with Injections
- Diagnostic Upper Endoscopy with Biopsy
- Colorectal Cancer Screening Tests
- Colonoscopy
- Sigmoid Colon Scope with Biopsy
- Lower Endoscopy with Tissue Sample
- Flexible Sigmoidoscopy and Biopsy
- Rectum and Lower Colon Exam
- Flexible Colonoscopy with Injection
- Colon Scope with Medication
- Therapeutic Colonoscopy
- EGD with Biopsy
- Esophagogastroduodenoscopy
- Upper GI Endoscopy
- Stomach Scope with Sample
CPT Codes:
- 45331: Sigmoidoscopy, flexible; with biopsy, single or multiple
- 45381: Colonoscopy, flexible; with directed submucosal injection(s), any substance
- 43235: Esophagogastroduodenoscopy, flexible, transoral; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
Also known as:
- Flexible Sigmoidoscopy
- Colorectal Cancer Screening Tests
- Sigmoidoscopy
- Lower colon exam
- Flexible colon scope
- Rectum and lower colon check
CPT Codes:
- 45330: Sigmoidoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
Also known as:
- Liver Elastography
- Elastography
- FibroScan
- Liver stiffness test
- Shear wave elastography
CPT Codes:
- 91200: Liver elastography, mechanically induced shear wave (eg, vibration), without imaging, with interpretation and report
Also known as:
- Capsule Endoscopy
- Pill Camera
- Wireless Capsule Endoscopy
- Small Bowel Capsule Endoscopy
- Intestinal Imaging Pill
CPT Codes:
- 91110: Gastrointestinal tract imaging, intraluminal (eg, capsule endoscopy), esophagus through ileum, with interpretation and report
Does Dr. Simon accept my insurance?
Dr. Simon accepts most major insurance plans. Important: Please call our office at (805) 983-0521 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Simon accept in Oxnard, CA?
Dr. Simon in Oxnard, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Alignment Healthcare
All Other Third Party
Blue Shield of California
Elevance Health Inc. (formerly Anthem)
Humana
Other Health Care Provider
Other Provider Networks
UnitedHealth Group
Unknown
Ventura County Health Plan
View All Insurances
Where is Dr. Simon's office located?
What is Dr. Simon's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Simon's National Provider Identifier (NPI) number is 1548384167.
What common questions do patients ask about Dr. Simon?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Simon
What is Dr. Karen Simon's specialty?
Dr. Simon is a Gastroenterologist near Oxnard, CA. An internist focused on diagnosing and treating disorders of the digestive system, encompassing the stomach, intestines, liver, and gallbladder. This specialist manages conditions like abdominal pain, ulcers, diarrhea, cancer, and jaundice, and performs intricate diagnostic and therapeutic procedures using endoscopes to examine internal organs. Contact Dr. Simon to book an appointment today.
Is this Dr. Karen Simon affiliated with a ranked Castle Connolly Top Hospital?
No, Simon is not affiliated with a Castle Connolly Top Hospital, but is affiliated with the following hospitals: Dignity Health - St. John's Regional Medical Center. Castle Connolly Top Hospitals are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
Where can I learn more about Gastroenterologist?
Explore Gastroenterologist with insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Karen Simon accepting new patients in Oxnard, CA?
Yes, Dr. Karen Simon is accepting new patients at this time.
Does Dr. Karen Simon offer online booking?
Please contact Dr. Simon's office at (805) 983-0521 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Karen Simon?
Please contact Dr. Simon's office at (805) 983-0521 for information regarding telehealth appointment availability or for scheduling assistance.
Other Gastroenterologist Near Oxnard, CA
DM
Gastroenterologist
Accepting patientsDr. Donald Miller, MD is a Gastroenterologist, who primarily practices in Oxnard, CA.
Oxnard, CA
MR
Gastroenterologist
Accepting patientsDr. Micha Rojany, MD is a Gastroenterologist, who primarily practices in Oxnard, CA with 2 additional practice locations. He has been practicing for over 19 years and is board certified.
Oxnard, CA
JM
Gastroenterologist
Accepting patientsDr. Justin Marasigan, DO is a Gastroenterologist, who primarily practices in Oxnard, CA with 2 additional practice locations.
Oxnard, CA