PK
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Koo, Gastroenterologist in Fullerton, CA?
Dr. Patrick Koo, MD is a Gastroenterologist, who primarily practices in Fullerton, CA with 2 additional practice locations. Dr. Koo is fluent in English and Chinese, and is currently seeing new patients. Dr. Koo’s practice accepts Kaiser Permanente, Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Koo’s office at (714) 446-5831.
What languages does Dr. Koo speak?
Dr. Koo and their clinical team can communicate with patients in the following languages:
Chinese
English
What conditions does a Gastroenterologist like Dr. Koo typically treat?
As a Gastroenterologist, Dr. Koo 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. Koo. 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.
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:
- Chronic Stomach Inflammation
- Stomach Disorder
- Gastritis & Gastropathy
- Chronic gastritis
- Long-term stomach inflammation
- Persistent stomach lining inflammation
ICD-10 Codes:
- K2950: Unspecified chronic gastritis without bleeding
Also known as:
- Colon Polyps
- Colonic Polyps
- Colorectal polyps
- Bowel polyps
- Intestinal polyps
ICD-10 Codes:
- K635: Polyp 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:
- Upper Middle Abdominal Pain
- Abdominal Pain
- Epigastric pain
- Pain below breastbone
- Upper stomach pain
ICD-10 Codes:
- R1013: Epigastric pain
What procedures does a Gastroenterologist like Dr. Koo typically perform?
As a Gastroenterologist, Dr. Koo 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. Koo. 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.
Also known as:
- Colonoscopy with Polyp Removal
- Colonoscopy with Biopsy
- Diagnostic Colonoscopy with Biopsy
- Colonoscopy with Tissue Removal
- 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
- Flexible colonoscopy with EMR
- Endoscopic mucosal resection (colon)
- Colon polyp removal during colonoscopy
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)
- 45390: Colonoscopy, flexible; with endoscopic mucosal resection
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:
- Esophagus Widening Procedure (Endoscopic)
- Esophageal Dilation
- EGD with Dilation
- Upper Endoscopy with Widening
CPT Codes:
- 43248: Esophagogastroduodenoscopy, flexible, transoral; with insertion of guide wire followed by passage of dilator(s) through esophagus over guide wire
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. Koo accept my insurance?
Dr. Koo accepts most major insurance plans. Important: Please call our office at (714) 446-5831 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Koo accept in Fullerton, CA?
Dr. Koo in Fullerton, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Blue Shield of California
Centene Corporation
CVS Health (formerly Aetna)
L.A. Care Health Plan
Medicare
Monarch HealthCare
State of California
UnitedHealth Group
Unknown
View All Insurances
Where is Dr. Koo's office located?
Dr. Patrick Koo's Primary Practice
1837 Sunny Crest Dr
Fullerton, CA 92835
(714) 446-5831
What is Dr. Koo's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Koo's National Provider Identifier (NPI) number is 1801152772.
What common questions do patients ask about Dr. Koo?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Koo
What is Dr. Patrick Koo's specialty?
Dr. Koo is a Gastroenterologist near Fullerton, CA.
What does a Gastroenterologist do?
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.
Is this Dr. Patrick Koo affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Koo is affiliated with Providence St. Jude Medical Center, Providence St. Jude Medical Center, Ahmc Anaheim Regional Medical Center, Riverside Community Hospital which are a Castle Connolly Top Hospitals. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They 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
When to see a Gastroenterologist?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see a Gastroenterologist. Explore 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 Patrick Koo accepting new patients in Fullerton, CA?
Yes, Dr. Patrick Koo is accepting new patients at this time.
Does Dr. Patrick Koo offer online booking?
Please contact Dr. Koo's office at (714) 446-5831 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Patrick Koo?
Please contact Dr. Koo's office at (714) 446-5831 for information regarding telehealth appointment availability or for scheduling assistance.
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