About

Dr. Nancy Han is a board-certified gastroenterologist who sees a broad range of patients with gastrointestinal and liver conditions. Dr. Han received her medical degree from The Ohio State University College of Medicine in Columbus, Ohio. She completed her internal medicine residency at Cedars-Sinai Medical Center in Beverly Hills, California. She then completed a fellowship in gastroenterology at Mayo Clinic in Scottsdale, Arizona. Dr. Han is board certified in gastroenterology.

Her practice includes general gastroenterology with interests in GERD, peptic ulcer disease, colorectal cancer screening, IBS, IBD, viral hepatitis, and fatty liver disease. Her clinical interests include hepatobiliary disease, liver disease, and IBD.

In addition to upper endoscopy and colonoscopy, Dr. Han has specialized training in capsule endoscopy, ambulatory pH testing and esophageal manometry.

Dr. Han enjoys spending time with her family and friends, particularly if the activities involve delicious food and travel.

Dr. Han is an active member of the American College of Gastroenterology (ACG), American Gastroenterological Association (AGA), and the American Society of Gastrointestinal Endoscopy (ASGE).

Areas of interest:
  • GERD
  • Colon Cancer Screening and Surveillance
  • IBS
  • IBD
  • Viral Hepatitis
  • Liver Disease
  • Cirrhosis Management
  • Hepatobiliary Disease
  • Capsule Endoscopy
  • Esophageal Manometry
Languages

English

Provider Specialty

Gastroenterology

Areas of Care

Conditions

Education

Medical School

Ohio State University College of Medicine

2005

Internship/Residency - Internal Medicine

Cedars-Sinai Medical Center

2008

Fellowship Program - Gastroenterology

Mayo Clinic College of Medicine and Science

2011

Locations & Affiliations

Locations

MemorialCare Medical Group - Orange Coast Medical Center (Health and Wellness Pavilion)

18035 Brookhurst Street

Suite 2100

Fountain Valley, CA

Office: 877-696-3622

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Affiliations

Insurance

Please consult your health care provider or health plan for the most accurate information about your health plan’s coverage of a particular health care service offered at a MemorialCare facility. Learn more about our Accepted Health Plans.

Patient Reviews

5.0 out of 5
(500 Ratings)
Dec 10, 2025
Phung D.
This was my first appointment with Dr. Han, and I was truly impressed. She is incredibly caring, listens attentively, and makes it very easy to talk about any concerns. She explained everything clearly and helped me feel comfortable right away. I’m grateful to have found her.
Dec 9, 2025
Emilee W.
Dr Han is not only professional…she has a kindness towards her patients.
Dec 9, 2025
Samantha D.
Truly interested in figuring out what the problems are, and how to fix it
Nov 21, 2025
Olivia M.
Nov 6, 2025
Soo J.
Dr Han is wonderful. She listens. She understands.
Oct 27, 2025
Susana E.
Dr.Han was very friendly, professional and knowledgeable about my medical history. She answered all my questions in a way that was very easy for me to understand. My wait time was very minimal and the office staff was very pleasant too.
Oct 23, 2025
Nancy S.
Dr. Han really listened to my concerns and explained things very well.
Oct 23, 2025
Mary P.
Smart, knowledgeable, & compassionate female doctor. I am so grateful to have her as one of my doctors. Wish all doctors were like her
Oct 21, 2025
Marilyn M.
Dr. HAN IS INFORMATIVE ,PROFESSIONAL AND GIVES YOU DETAILED INFORMATION ON PROCEDURES AND RESULTS. SHE GIVES YOU AMPLE TIME TO ASK QUESTIONS OR CONCERNS.SHE ALSO IS KIND AND I WOULD RECOMMEND HER TO FAMILY AND FRIENDS.
Oct 17, 2025
Betty F.
Dr. Han is very patient and kind and she’s not afraid to touch me you just can’t find a doctor today that wants to touch you. She gives good information. She’s a good listener and she’s very very pretty.
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Source: Reviews are aggregated from third-party review sites such as Facebook, Google, HealthGrades, RepuGen, Vitals, WebMD, and Yelp.