Frank (Xinqing) Fan, MD, FACG

Board certified in Gastroenterology and Internal Medicine

Specialty: Gastroenterology & Hepatology

Dr. Fan was a Professor at University of Texas Southwestern Medical  Center in Dallas before  joining private practice. At UTSW, Dr. Fan treated complicated cases referred by area Gastroenterologists and patients from many other regions in the country.  With extensive education and training,  he brings up-to-date gastroenterology care to the community.

Dr. Fan completed his residency and internship in internal medicine at the Weill Medical College of Cornell University affiliated hospital in New York. He completed his gastroenterology fellowship at the University of Texas Medical Branch in Texas. He is board certified in gastroenterology and internal medicine.

In addition to his post at the University of Texas, Dr. Fan has also been an instructor at the Mount Sinai School of Medicine, New York.  

Dr. Fan serves as a committee member at the National Affairs Committee of American College of Gastroenterology. In his spare time, he enjoys hiking and spending time with his family.  

Residency in Internal Medicine: Cornell University Affiliated Hospital, New York.

Fellowship in Gastroenterology: University of Texas Medical Branch, Texas.

Dr. Fan’s Major Publications:

Xinqing Fan, Larry D Scott. Controversies in Barrett’s Oesophagus.  European Gastroenterology & Hepatology Review, 2012;8(1):82-85

John Kisiel, Xinqing Fan, Susan Kane. Exacerbation of Organic Anxiety Disorder with Suicidal Ideation Following Infliximab for Ulcerative Colitis.  J. of Medicine. 2009;2(1):52–55

Xinqing Fan, Joseph Sellin. Review article: Small intestinal bacterial overgrowth, bile acid malabsorption and gluten intolerance as possible causes of chronic watery diarrhoea. Alimentary Pharmacology &Therapeutics.  2009; 29(10): 1069-1077

Xinqing Fan, Ned Snyder. The Prevalence of Barrett’s Esophagus and Racial Difference in Patients with or without GERD Symptoms: Role of race, age, and sex. Digestive Diseases and Sciences. 2009; 54(3):572-7

Xinqing Fan, MD; Christine Kwan, BS; Taylor Riall, MD, Ph.D; Joseph Sellin, MD. A gastric ulcer at the anastomosis site perforated into the liver after Roux-en-Y gastric bypass surgerymypapergastriculcerGastrointestinal Endoscopy. 68(4): 769; 2008

O Petrescu, AF Cheema, X Fan, MW Bradbury and PD Berk. Differences in adipocyte long chain fatty acid uptake in Osborne–Mendel and S5B/Pl rats in response to high-fat diets.International Journal of Obesity. 32(5):853-62; 2008

X. FanL. Scott, S. Qiu, GS. Raju, M. Shabot. Colonic Co-infection of Histoplasma and CMV in a HIV/AIDS Patient Mimicking Carcinoma.  Gastrointestinal Endoscopy.   67(6): 977-978; 2008.

X. Fan, S. Nath, G. Gomez, and GS. Raju. Acute Gastric Volvulus Practical Gastroenterology.  XXXI(4):103-112; 2007.

O Petrescu, X Fan, M Gagner, PD Berk. Long Chain Fatty Acid Uptake is Up-Regulated in Omental Adipocytes from Patients Undergoing Bariatric Surgery for ObesityInternational Journal of Obesity. 29:196-203; 2005.

X. Fan, M. W. Bradbury, and P. D. Berk.  Leptin and insulin modulate nutrient partitioning and weight loss in ob/ob mice through regulation of long chain fatty acid uptake by adipocytes. J. Nutrition.  133(9):2707-2715; 2003.

DD. Stump, X. Fan,  and PD. Berk. Characteristic of oleic acid binding to adipocyte plasma membranes and uptake by rat adipocytes.  J. Lip. Res. 42:509-520; 2001.

P.D. Berk, S.L. Zhou, L. Kiang, X. Fan, and M Bradbury. Selective up-regulation of fatty acid uptake by adipocytes characterizes both genetic and diet-induced obesity in rodents.  J. Biol. Chem. 274:28626-28631; 1999.

Xinqing Fan and Carolyn Price.  Coordinate regulation of G- and C-strand length during new telomere synthesis.  Mol. Biol. Cell: 8:2145-2155; 1997.

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Jacqueline Chen, M.D.

Board certified in Gastroenterology and Internal Medicine

Dr. Chen grew up in Plano, TX before moving to St. Louis, Missouri to complete her undergraduate and medical degree at Washington University in St. Louis. She loved it there so much she went on to complete her internal medicine residency there and was chosen as a chief resident in internal medicine. After completing her gastroenterology fellowship, she moved to Portland, Oregon and worked for Kaiser Permanente as a general gastroenterologist. She and her family then decided to return home to Texas and join the North Dallas Digestive Disease Specialists. In her training and her practice, Dr. Chen has treated a wide range of general gastroenterology diseases. She has a special interest in nutrition and colon cancer screening. She is board certified in Gastroenterology and Internal Medicine. In her free time, she enjoys reading, painting, yoga, and spending time with her family.

Bachelor of Arts, Biology and Anthropology, Magna Cum Laude, Washington University, St. Louis, MO.
Doctor of Medicine, Washington University School of Medicine, St. Louis, MO.
Residency in Internal Medicine, Barnes Jewish Hospital, Washington University School of Medicine, St. Louis, MO.
Chief Resident, Barnes Jewish Hospital, Washington University School of Medicine and John Cochran St. Louis VA Medical Center.
Gastroenterology Fellow, Barnes Jewish Hospital, Washington University School of Medicine and John Cochran St. Louis VA Medical Center.

Dr. Chen's Publicaions

Fejleh, MP, Shen, CC; Chen, J; Bushong, JA; Dieckgraefe, BK; Sayuk, GS. Quality metrics of screening colonoscopies performed by PAs, Journal of the American Academy of Physician Assistants. April 2020 – Volume 33 – Issue 4 – p 43-48.

Ashkar, MH, Chen J, Shy C, Crippin JS, Chen CH, Sayuk GS, Davidson NO. Increased risk of advanced colonic adenomas and timing of surveillance colonoscopy following solid organ transplantation. Digestive Diseases and Sciences. May 2021.

Boutte HJ*, Chen J*, Wylie TN, Wylie KM, Xie Y, Geisman M, Prabu A, Gazit V, Tarr PI, Levin MS, Warner BW, Davidson NO, Rubin DC. Fecal Microbiome and Bile acid Metabolome in Parenteral Nutrition-Dependent and -Independent Adults with Short Bowel Syndrome. Am J Physiol Gastrointest Liver Physiol 2022 Jan 1;322(1):G154-G168. *Co-first authors. Chen, J, Fejleh, MP, Evanoff, B. A Case of Pernicious Anemia. Missouri ACP Meeting 2016.