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Dr. Andrew Ko, MD

Dr. Andrew Ko, MD

Laguna Hills, CA

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Ko, Gastroenterologist in Laguna Hills, CA?

    Dr. Andrew Ko, MD is a Gastroenterologist, who primarily practices in Laguna Hills, CA with 2 additional practice locations. He is board certified. Dr. Ko completed his residency at Univ Ca Irvine Med Ctr, Gastroenterology. He is a member of the MemorialCare Physician Society. Dr. Ko is fluent in English, Chinese, French, and Korean, and is currently seeing new patients. Dr. Ko’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Ko’s office at (714) 545-7311.

    Where did Dr. Ko go to medical school and complete their residency?

    • Residency: Univ Ca Irvine Med Ctr, Gastroenterology | University of California, Irvine Affiliated Hospitals

    Is Dr. Ko board certified as a Gastroenterologist?

    Yes, Dr. Andrew Ko, MD is board certified by the American Board of Internal Medicine

    What languages does Dr. Ko speak?

    Dr. Ko and their clinical team can communicate with patients in the following languages:

    • Chinese

    • English

    • French

    • Korean

    What conditions does a Gastroenterologist like Dr. Ko typically treat?

    As a Gastroenterologist, Dr. Ko 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. Ko. 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:

    • Chronic Atrophic Gastritis
    • Stomach Disorder
    • Gastritis & Gastropathy
    • Long-term Wasting Gastritis
    • Persistent Stomach Lining Thinning
    • Chronic Atrophy of Stomach

    ICD-10 Codes:

    • K2940: Chronic atrophic gastritis without bleeding

    Also known as:

    • Acid Reflux
    • GERD with Esophagitis
    • GERD
    • Acid Reflux (GER & GERD) in Adults
    • Acid Reflux (GER & GERD) in Children
    • Acid Reflux (GER & GERD) in Infants
    • Eosinophilic Esophagitis
    • Gastroesophageal Reflux
    • Heartburn
    • Indigestion
    • Reflux Esophagitis
    • Acid Reflux Esophagus Inflammation
    • Heartburn with Esophagus Damage

    ICD-10 Codes:

    • K219: Gastro-esophageal reflux disease without esophagitis
    • K2100: Gastro-esophageal reflux disease with esophagitis, without bleeding

    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:

    • Diaphragmatic Hernia
    • Hernia
    • Hiatal Hernia
    • Hernia of the Diaphragm

    ICD-10 Codes:

    • K449: Diaphragmatic hernia without obstruction or gangrene

    What procedures does a Gastroenterologist like Dr. Ko typically perform?

    As a Gastroenterologist, Dr. Ko 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. Ko. 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
    • 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:

    • Diagnostic Upper Endoscopy with Biopsy
    • EGD with Biopsy
    • Esophagogastroduodenoscopy
    • Upper GI Endoscopy
    • Stomach Scope with Sample

    CPT Codes:

    • 43235: Esophagogastroduodenoscopy, flexible, transoral; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)

    Also known as:

    • Upper Endoscopy with Polyp Removal
    • EGD with Polypectomy
    • Esophagus, Stomach, Duodenum Scope with Removal
    • Flexible Endoscopy Tumor Excision

    CPT Codes:

    • 43251: Esophagogastroduodenoscopy, flexible, transoral; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique

    Does Dr. Ko accept my insurance?

    Dr. Ko accepts most major insurance plans. Important: Please call our office at (714) 545-7311 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Ko accept in Laguna Hills, CA?

    Dr. Ko in Laguna Hills, 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 Cross Blue Shield Association

    • Blue Shield of California

    • Centene Corporation

    • CVS Health (formerly Aetna)

    • Medicare

    • State of California

    • State of Washington

    • UnitedHealth Group

    • Unknown

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    Where is Dr. Ko's office located?

    Dr. Andrew Ko's Primary Practice

    25401 Cabot Rd Ste 101

    Laguna Hills, CA 92653

    (714) 545-7311

    Get Directions

    Dr. Andrew Ko's Practice 2

    11100 Warner Ave Ste 216

    Fountain Valley, CA 92708

    Get Directions

    Dr. Andrew Ko's Practice 3

    17822 Beach Blvd Ste 301

    Huntington Beach, CA 92647

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    Recognitions

    Memberships & Associations

    MemorialCare Physician Society

    Member

    What is Dr. Ko's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.

    Dr. Ko's National Provider Identifier (NPI) number is 1437170990.

    What common questions do patients ask about Dr. Ko?

    Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Ko

    What is Dr. Andrew Ko's specialty?

    Dr. Ko is a Gastroenterologist near Laguna Hills, 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. Andrew Ko affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Ko is affiliated with Uci Medical Center, Uw Medical Center - Montlake, Hoag Hospital Newport Beach 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 Andrew Ko accepting new patients in Laguna Hills, CA?

    Yes, Dr. Andrew Ko is accepting new patients at this time.

    Does Dr. Andrew Ko offer online booking?

    Please contact Dr. Ko's office at (714) 545-7311 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Andrew Ko?

    Please contact Dr. Ko's office at (714) 545-7311 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Andrew Ko have?

    Dr. Andrew Ko is certified by the American Board of Internal Medicine.

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