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Dr. Mary Hu, MD

Fremont, CA

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Hu, Gastroenterologist in Fremont, CA?

    Dr. Mary Hu, MD is a Gastroenterologist, who primarily practices in Fremont, CA with 1 additional practice location. Dr. Hu is fluent in English and Chinese, and is currently seeing new patients. Dr. Hu’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Hu’s office at (510) 490-1222.

    What languages does Dr. Hu speak?

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

    • Chinese

    • English

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

    As a Gastroenterologist, Dr. Hu 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. Hu. 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:

    • Stomach or Duodenum Polyp
    • Stomach Disorder
    • Gastric Polyp
    • Duodenal Polyp
    • Stomach Growth

    ICD-10 Codes:

    • K317: Polyp of stomach and duodenum

    Also known as:

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

    ICD-10 Codes:

    • K635: Polyp 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

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

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

    CPT Codes:

    • 45380: Colonoscopy, flexible; with biopsy, single or multiple
    • 45385: Colonoscopy, flexible; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique
    • 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:

    • 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. Hu accept my insurance?

    Dr. Hu accepts most major insurance plans. Important: Please call our office at (510) 490-1222 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Hu accept in Fremont, CA?

    Dr. Hu in Fremont, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • Blue Shield of California

    • Centene Corporation

    • Cigna Group

    • Corporate Services

    • CVS Health (formerly Aetna)

    • Elevance Health Inc. (formerly Anthem)

    • Federal government of the United States

    • Medicare

    • Spectrum

    • UnitedHealth Group

    View All Insurances

    Where is Dr. Hu's office located?

    Dr. Mary Hu's Primary Practice

    3200 Kearney St

    Fremont, CA 94538

    (510) 490-1222

    Get Directions

    Dr. Mary Hu's Practice 2

    325 Distel Cir

    Los Altos, CA 94022

    Get Directions

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

    Dr. Hu's National Provider Identifier (NPI) number is 1659339059.

    What common questions do patients ask about Dr. Hu?

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

    What is Dr. Mary Hu's specialty?

    Dr. Hu is a Gastroenterologist near Fremont, 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. Mary Hu affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Hu is affiliated with Washington Hospital Healthcare System, Eden Medical Center, Sutter Medical Center, Sacramento, Mills-Peninsula Medical Center, California Pacific Medical Center - Davies Campus, Memorial Medical Center - Modesto, Ca 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 Mary Hu accepting new patients in Fremont, CA?

    Yes, Dr. Mary Hu is accepting new patients at this time.

    Does Dr. Mary Hu offer online booking?

    Please contact Dr. Hu's office at (510) 490-1222 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Mary Hu?

    Please contact Dr. Hu's office at (510) 490-1222 for information regarding telehealth appointment availability or for scheduling assistance.

    <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>