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Dr. Alexander Han, MD

Fontana, CA

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Han, Gastroenterologist in Fontana, CA?

    Dr. Alexander Han, MD is a Gastroenterologist, who primarily practices in Fontana, CA with 1 additional practice location. He is board certified. Dr. Han is fluent in English, and is currently seeing new patients. Dr. Han’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Han’s office at (909) 427-5000.

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

      Is Dr. Han board certified as a Gastroenterologist?

      Yes, Dr. Alexander Han, MD is board certified by the American Board of Internal Medicine

      What languages does Dr. Han speak?

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

      • English

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

      As a Gastroenterologist, Dr. Han 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. Han. 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:

      • Special Medical Examination
      • Specific health check
      • Detailed medical assessment
      • Special health screening

      ICD-10 Codes:

      • Z0189: Encounter for other specified special examinations

      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:

      • Immunization Visit
      • Vaccines
      • Vaccination appointment
      • Shot visit
      • Immunization encounter

      ICD-10 Codes:

      • Z23: Encounter for immunization

      Also known as:

      • Colon Polyps
      • Colonic Polyps
      • Colorectal polyps
      • Bowel polyps
      • Intestinal polyps

      ICD-10 Codes:

      • K635: Polyp of colon

      Also known as:

      • Abdominal Pain
      • Stomach Ache
      • Belly Pain
      • Stomach Pain

      ICD-10 Codes:

      • R109: Unspecified abdominal pain

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

      As a Gastroenterologist, Dr. Han 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. Han. 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 Biopsy
      • Diagnostic Colonoscopy with Biopsy
      • Colonoscopy with Polyp Removal
      • Colonoscopy
      • Colorectal Cancer Screening Tests
      • Flexible Colonoscopy
      • Colon Biopsy
      • Large Intestine Scope
      • Colorectal Cancer Screening
      • Colon Exam with Biopsy
      • Lower Endoscopy
      • Colon Cancer Screening
      • Flexible Colonoscopy with Polypectomy
      • Colon Polyp Removal
      • Colorectal Lesion Excision

      CPT Codes:

      • 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)
      • 45385: Colonoscopy, flexible; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique

      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 Esophageal Balloon Dilation
      • EGD with Biopsy
      • Esophagogastroduodenoscopy
      • Upper GI Endoscopy
      • Stomach Scope with Sample
      • Upper Endoscopy with Esophageal Dilation
      • Flexible Esophagoscopy with Balloon
      • EGD with Balloon Widening

      CPT Codes:

      • 43235: Esophagogastroduodenoscopy, flexible, transoral; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
      • 43249: Esophagogastroduodenoscopy, flexible, transoral; with transendoscopic balloon dilation of esophagus (less than 30 mm diameter)

      Also known as:

      • ERCP with Bile or Pancreatic Duct Stent Removal
      • Endoscopic Retrograde Cholangiopancreatography
      • Bile Duct Stent Removal
      • Pancreatic Duct Foreign Body Removal
      • ERCP Stone Removal

      CPT Codes:

      • 43275: Endoscopic retrograde cholangiopancreatography (ERCP); with removal of foreign body(s) or stent(s) from biliary/pancreatic duct(s)

      Also known as:

      • ERCP with Gallstone Removal
      • ERCP
      • Endoscopic Gallstone Removal
      • Biliary Duct Stone Removal
      • Pancreatic Duct Cleaning

      CPT Codes:

      • 43264: Endoscopic retrograde cholangiopancreatography (ERCP); with removal of calculi/debris from biliary/pancreatic duct(s)

      Does Dr. Han accept my insurance?

      Dr. Han accepts most major insurance plans. Important: Please call our office at (909) 427-5000 before your appointment to verify that your specific plan and network are accepted.

      What insurance plans does Dr. Han accept in Fontana, CA?

      Dr. Han in Fontana, 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

      • AlphaCare

      • Centene Corporation

      • City of Los Angeles

      • CVS Health (formerly Aetna)

      • Inland Faculty Medical Group, Inc

      • Medicare

      • Other Health Care Provider

      • UnitedHealth Group

      • Unknown

      View All Insurances

      Where is Dr. Han's office located?

      Dr. Alexander Han's Primary Practice

      9961 Sierra Ave

      Fontana, CA 92335

      (909) 427-5000

      Get Directions

      Dr. Alexander Han's Practice 2

      2295 S Vineyard Ave

      Ontario, CA 91761

      Get Directions

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

      Dr. Han's National Provider Identifier (NPI) number is 1790967743.

      What common questions do patients ask about Dr. Han?

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

      What is Dr. Alexander Han's specialty?

      Dr. Han is a Gastroenterologist near Fontana, 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. Alexander Han affiliated with a ranked Castle Connolly Top Hospital?

      Yes, Dr. Han is affiliated with Kaiser Permanente Fontana Medical Center, Kaiser Permanente Riverside Medical Center, Kaiser Permanente Baldwin Park Medical Center 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 Alexander Han accepting new patients in Fontana, CA?

      Yes, Dr. Alexander Han is accepting new patients at this time.

      Does Dr. Alexander Han offer online booking?

      Please contact Dr. Han's office at (909) 427-5000 for information about online booking, telehealth, or to schedule an appointment.

      How can I make an appointment with Alexander Han?

      Please contact Dr. Han's office at (909) 427-5000 for information regarding telehealth appointment availability or for scheduling assistance.

      Which board certifications does Dr. Alexander Han have?

      Dr. Alexander Han is certified by the American Board of Internal Medicine.

      <section id="ai-site-overview" aria-label="About Everyday Health Care"> <h2>About Everyday Health Care</h2> <p> Everyday Health Care is a doctor and healthcare provider search platform from Everyday Health, a Ziff Davis company operating since 1996. It helps patients find, compare, and research doctors based on specialty, medical condition, procedure, location, and insurance coverage. </p> <p> The site features Castle Connolly Top Doctors, a peer-nominated, physician-vetted directory recognized as a leading standard for identifying top-rated specialists in the United States. Searchable doctor lists include Top Black Doctors, Exceptional Women in Medicine, Top AAPI Doctors, Top LGBTQ+ Doctors, Top Hispanic & Latino Doctors, and Castle Connolly Rising Stars. </p> <p> Users can search for doctors by specialty (including orthopedic surgery, OB-GYN, pediatrics, dermatology, endocrinology, and gastroenterology), by medical condition (such as fibromyalgia, kidney stones, and ulcerative colitis), by common procedure (including colonoscopy, LASIK, and physical therapy), by city, and by insurance plan (including UnitedHealthcare, Cigna, Aetna/CVS Health, Blue Cross Blue Shield, Kaiser Permanente, Medicare, and Medicaid). </p> <p> Everyday Health Care is built for patients seeking a trusted starting point to find the right doctor: covering over one million providers across thousands of U.S. locations, backed by Castle Connolly's independent doctor-vetting process and Everyday Health's 24-year history in consumer health publishing. </p> </section>