Accepting patients
Who is Dr. Chen, Gastroenterologist in San Jose, CA?
Dr. Ann Chen, MD is a Gastroenterologist, who primarily practices in San Jose, CA with 2 additional practice locations. Dr. Chen graduated from Albert Einstein College of Medicine of Yeshiva University. Dr. Chen is fluent in English and Chinese, and is currently seeing new patients. Dr. Chen’s practice accepts Kaiser Permanente, Medicaid, Medicare, UnitedHealthcare, Aetna, Cigna and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Chen’s office.
What are Areas of Expertise for Dr. Chen?
Dr. Ann Chen, 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. Chen empowers patients to confidently navigate their health journey, specializing in Endoscopic Ultrasound, Gastrointestinal Cancer, Pancreatic Cancer, or comprehensive wellness support. Serving the San Jose/CA community, Dr. Chen is dedicated to enhancing lives through expert, patient-centered care.
Where did Dr. Chen go to medical school and complete their residency?
Medical School: Albert Einstein College of Medicine of Yeshiva University
What languages does Dr. Chen speak?
Dr. Chen and their clinical team can communicate with patients in the following languages:
Chinese
English
What conditions does Dr. Chen treat?
As a Gastroenterologist, Dr. Chen 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. Chen. 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.
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:
- Dark, Tarry Stools (Melena)
- Gastrointestinal Bleeding
- Melena
- Black Stools
- Upper GI Bleed Signs
ICD-10 Codes:
- K921: Melena
Also known as:
- Abnormal Bowel Movements
- Bowel Movement
- Unusual stool
- Changes in poop
- Fecal changes
ICD-10 Codes:
- R195: Other fecal abnormalities
Also known as:
- Abnormal Digestive Tract Imaging
- Abnormal GI scan
- Unusual digestive imaging
- Digestive system imaging findings
ICD-10 Codes:
- R933: Abnormal findings on diagnostic imaging of other parts of digestive tract
Also known as:
- Iron Deficiency Anemia
- Anemia
- Iron
- Anemia from Iron Lack
- Low Iron Anemia
- Sideropenic Anemia
ICD-10 Codes:
- D509: Iron deficiency anemia, unspecified
Also known as:
- Chronic Hepatitis B
- Hepatitis B
- Long-term Hepatitis B
- Persistent Hepatitis B
- Hep B
ICD-10 Codes:
- B181: Chronic viral hepatitis B without delta-agent
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 Dr. Chen perform?
As a Gastroenterologist, Dr. Chen 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. Chen. 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.
Also known as:
- Diagnostic Colonoscopy with Biopsy
- Colonoscopy with Biopsy
- Colonoscopy with Polyp Removal
- Colonoscopy
- Colorectal Cancer Screening Tests
- Flexible Colonoscopy
- Colon Exam with Biopsy
- Lower Endoscopy
- Colon Cancer Screening
- Colon Biopsy
- Large Intestine Scope
- Colorectal Cancer Screening
- Flexible Colonoscopy with Polypectomy
- Colon Polyp Removal
- Colorectal Lesion Excision
CPT Codes:
- 45378: Colonoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
- 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
Also known as:
- Diagnostic Upper Endoscopy with Biopsy
- EGD with Endoscopic Ultrasound
- Colonoscopy with Injections
- Colonoscopy
- Colorectal Cancer Screening Tests
- EGD with Biopsy
- Esophagogastroduodenoscopy
- Upper GI Endoscopy
- Stomach Scope with Sample
- Upper GI Endoscopy with Ultrasound
- EUS (Endoscopic Ultrasound)
- Esophagus, Stomach, Duodenum Ultrasound
- Flexible Colonoscopy with Injection
- Colon Scope with Medication
- Therapeutic Colonoscopy
CPT Codes:
- 43235: Esophagogastroduodenoscopy, flexible, transoral; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
- 43237: Esophagogastroduodenoscopy, flexible, transoral; with endoscopic ultrasound examination limited to the esophagus, stomach or duodenum, and adjacent structures
- 45381: Colonoscopy, flexible; with directed submucosal injection(s), any substance
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 Ultrasound and Biopsy
- Biopsy
- Endoscopy
- Ultrasound
- EGD with Endoscopic Ultrasound Biopsy
- Transoral EUS-FNA
- Esophagogastroduodenoscopy with Biopsy
CPT Codes:
- 43242: Esophagogastroduodenoscopy, flexible, transoral; with transendoscopic ultrasound-guided intramural or transmural fine needle aspiration/biopsy(s) (includes endoscopic ultrasound examination of the esophagus, stomach, and either the duodenum or a surgically altered stomach where the jejunum is examined distal to the anastomosis)
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. Chen accept my insurance?
Dr. Chen accepts most major insurance plans. Important: Please call our office at before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Chen accept in San Jose, CA?
Dr. Chen in San Jose, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Alignment Health Plan
All Other Third Party
Conifer Health Solutions
Crown Cork and Seal Company
Kaiser Permanente
Medicare
Mohawk Industries
OptumRx
Santa Clara Family Health Plan
State of Tennessee
View All Insurances
Where is Dr. Chen's office located?
Recognitions
Publications
Locally advanced gastric cancer complicated by mesenteric invasion and intestil malrotation.
Digestive diseases and sciences, 2014
Outcomes of repeat colonoscopy in patients with polyps referred for surgery without biopsy
GASTROINTESTIL ENDOSCOPY, 2014
Metabolomic-derived novel cyst fluid biomarkers for pancreatic cysts: glucose and kynurenine
GASTROINTESTIL ENDOSCOPY, 2013
Endoscopic magement of nonlifting colon polyps.
Diagnostic and therapeutic endoscopy, 2013
Pancreatic Neuroendocrine Tumors: Radiographic Calcifications Correlate with Grade and Metastasis
ANLS OF SURGICAL ONCOLOGY, 2012
Endoscopic mucosal resection with an over-the-counter hyalurote preparation
GASTROINTESTIL ENDOSCOPY, 2012
Diagnostic accuracy of cyst fluid amphiregulin in pancreatic cysts
BMC GASTROENTEROLOGY, 2012
Cryotherapy for Barrett's esophagus: Who, how, and why?
Gastrointestil endoscopy clinics of North America, 2011
Suppurative (Phlegmonous) Gastritis Presenting as a Gastric Mass
DIGESTIVE DISEASES AND SCIENCES, 2010
Double balloon enteroscopy detects small bowel mass lesions missed by capsule endoscopy
DIGESTIVE DISEASES AND SCIENCES, 2008
Predictive Value of Pancreatic Ductal Dilation on Endoscopic Ultr
Gastrointestil Endoscopy, 2007
What is the learning curve associated with double-balloon enteroscopy? Technical details
GASTROINTESTIL ENDOSCOPY, 2006
Porcine stem cell factor facilitates long
Abe, M., Chen, A. M., Qi, J., Sachs, D. H., Sykes, M., Yang, Y. G., 2000
Porcine stem cell engraftment
TRANSPLANTATION, 2000
Development and alysis of transgenic mice expressing porcine hematopoietic cytokines
XENOTRANSPLANTATION, 2000
Role of antibody-independent complement activation in rejection of porcine bone marrow cells in
TRANSPLANTATION, 2000
Routine myocardial revascularization with the radial artery: A multicenter experience
JOURL OF CARDIAC SURGERY, 1998
What is Dr. Chen's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Chen's National Provider Identifier (NPI) number is 1003840307.
What common questions do patients ask about Dr. Chen?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Chen
What is Dr. Ann Chen's specialty?
Dr. Chen is a Gastroenterologist near San Jose, 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. Chen to book an appointment today.
Is this Dr. Ann Chen affiliated with a ranked Castle Connolly Top Hospital?
No, Chen is not affiliated with a Castle Connolly Top Hospital, but is affiliated with the following hospitals: Santa Clara Valley 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 Ann Chen accepting new patients in San Jose, CA?
Yes, Dr. Ann Chen is accepting new patients at this time.
Does Dr. Ann Chen offer online booking?
Please contact Dr. Chen's office for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Ann Chen?
Please contact Dr. Chen's office for information regarding telehealth appointment availability or for scheduling assistance.
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