Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Nguyen, Gastroenterologist in Fountain Valley, CA?
Dr. Duke Nguyen, MD is a Gastroenterologist, who primarily practices in Fountain Valley, CA with 2 additional practice locations. He is board certified by the American Board of Internal Medicine. Dr. Nguyen graduated from St. George's University School of Medicine. Dr. Nguyen is fluent in English and Vietnamese, and is currently seeing new patients. Dr. Nguyen’s practice accepts Cigna, Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Nguyen’s office at (714) 378-7390.
Where did Dr. Nguyen go to medical school and complete their residency?
Medical School: St George',s University | St. George's University School of Medicine
Is Dr. Nguyen board certified in Gastroenterologist?
Yes, Dr. Duke Nguyen, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Nguyen speak?
Dr. Nguyen and their clinical team can communicate with patients in the following languages:
English
Vietnamese
What conditions does Dr. Nguyen treat?
As a Gastroenterologist, Dr. Nguyen 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. Nguyen. 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:
- 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:
- Colon Polyps
- Colonic Polyps
- Colorectal polyps
- Bowel polyps
- Intestinal polyps
ICD-10 Codes:
- K635: Polyp of colon
Also known as:
- Stomach Inflammation
- Stomach Disorder
- Gastritis & Gastropathy
- Gastritis
- Inflamed stomach lining
- Stomach lining inflammation
ICD-10 Codes:
- K2970: Gastritis, unspecified, without bleeding
Also known as:
- Colon Polyps
- Colonic Polyps
- Colorectal Polyps
- Intestinal Polyps
- Bowel Polyps
ICD-10 Codes:
- Z86010: Personal history of colon polyps
- Z860109: Personal history of other colon polyps
Also known as:
- Rectal Bleeding
- Dark, Tarry Stools (Melena)
- Gastrointestinal Bleeding
- Gastrointestinal (GI) Bleeding
- Anal Bleeding
- Blood in Stool
- Lower GI Bleed
- Melena
- Black Stools
- Upper GI Bleed Signs
ICD-10 Codes:
- K625: Hemorrhage of anus and rectum
- K921: Melena
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:
- Iron Deficiency Anemia
- Anemia
- Iron
- Anemia from Iron Lack
- Low Iron Anemia
- Sideropenic Anemia
- Low Red Blood Cell Count
- Low Hemoglobin
- Iron deficiency
ICD-10 Codes:
- D509: Iron deficiency anemia, unspecified
- D649: Anemia, unspecified
Also known as:
- Diarrhea
- Loose stools
- Runny poop
- Frequent bowel movements
ICD-10 Codes:
- R197: Diarrhea, unspecified
Also known as:
- Irritable Bowel Syndrome (IBS)
- Irritable Bowel Syndrome
- Spastic Colon
- Functional Bowel Disorder
- IBS
ICD-10 Codes:
- K589: Irritable bowel syndrome, unspecified
Also known as:
- Barrett's Esophagus
- Esophagus Disorder
- Barrett’s Esophagus
- Barrett's condition
- Esophageal metaplasia
ICD-10 Codes:
- K2270: Barrett's esophagus without dysplasia
Also known as:
- Upper Middle Abdominal Pain
- Abdominal Pain
- Epigastric pain
- Pain below breastbone
- Upper stomach pain
ICD-10 Codes:
- R1013: Epigastric pain
Also known as:
- Stomach and Duodenum Disorder
- Stomach Disorder
- Gastric Conditions
- Duodenal Conditions
- Digestive System Disorders
ICD-10 Codes:
- K3189: Other diseases of stomach and duodenum
Also known as:
- Difficulty Swallowing
- Swallowing Disorder
- Dysphagia
- Trouble swallowing
- Painful swallowing
ICD-10 Codes:
- R1310: Dysphagia, unspecified
Also known as:
- Ulcerative Colitis
- Colitis
- Inflammatory Bowel Disease (IBD)
- Chronic Colitis
ICD-10 Codes:
- K5190: Ulcerative colitis, unspecified, without complications
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:
- Follow-up After Treatment (Non-Cancer)
- Post-Treatment Check-up
- Aftercare Visit
- Recovery Monitoring Exam
ICD-10 Codes:
- Z09: Encounter for follow-up examination after completed treatment for conditions other than malignant neoplasm
Which procedures does Dr. Nguyen perform as a Gastroenterologist?
As a Gastroenterologist, procedures performed by a Dr. Duke Nguyen may include:
- Colonoscopy
- Colonoscopy Consultation
- Colorectal Cancer Screening
- Endoscopic Ultrasound
- Endoscopy / Endoscopic Ultrasound
- Gastric Balloon
- Gastric Stimulator Implantation Consultation
- Gastric Stimulator Implantation Follow Up
For detailed information, please contact Dr. Nguyen's office.
Does Dr. Nguyen accept my insurance?
Dr. Nguyen accepts most major insurance plans. Important: Please call our office at (714) 378-7390 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Nguyen accept in Fountain Valley, CA?
Dr. Nguyen in Fountain Valley, 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
CalOptima
Centene
CVS Health (formerly Aetna)
Elevance Health Inc. (formerly Anthem)
Monarch HealthCare
OptumRx
Other Health Care Provider
UnitedHealthcare
View All Insurances
Where is Dr. Nguyen's office located?
Dr. Duke Nguyen's Primary Practice
18111 Brookhurst St Ste 3100
Fountain Valley, CA 92708
(714) 378-7390
Dr. Duke Nguyen's Practice 3
9900 Talbert Ave Ste 100
Fountain Valley, CA 92708
(714) 378-7390
What is Dr. Nguyen's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Nguyen's National Provider Identifier (NPI) number is 1679557797.
What common questions do patients ask about Dr. Nguyen?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Nguyen
What is Dr. Duke Nguyen's specialty?
Dr. Nguyen is a Gastroenterologist near Fountain Valley, 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. Nguyen to book an appointment today.
Is this Dr. Duke Nguyen affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Nguyen is affiliated with Uci Medical Center which is a Castle Connolly Top Hospital. 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
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 Duke Nguyen accepting new patients in Fountain Valley, CA?
Yes, Dr. Duke Nguyen is accepting new patients at this time.
Does Dr. Duke Nguyen offer online booking?
Please contact Dr. Nguyen's office at (714) 378-7390 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Duke Nguyen?
Please contact Dr. Nguyen's office at (714) 378-7390 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Duke Nguyen have?
Dr. Duke Nguyen is certified by the American Board of Internal Medicine.
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