9851 FM 1097 Rd., West Bldg. 120,Willis, TX 77318


9200 Pinecroft Dr. Suite 480 Shenandoah, TX 77380


25329 Budde Road
Ste 103-104 Spring TX 77380


Phone: 281.205.1111
Fax : 281.419.2111

A. Kimberly Louangpho

About Us

Dr. Serge-Alain Awasum
Board Certified Gastroenterology & Hepatology


+ 1999-2002
Gastroenterology Fellowship
University of Florida
Gainesville, FL

+ 1996-1999
University of Kentucky,
Lexington, KY

+ 1992-1996
Medical School
East Tennessee State University

+ 1987-1991
Howard University
Washington D.C

+ Chief Fellow, University of Florida

+ Therapeutic ERCP Fellow 2001-2002

+ Diagnostic EUS Fellow 2000-2001

+ Honors Earned In Immunology 1993

+ Honors Earned In Histopathology 1993

+ Honors Earned In Psychiatry 1995

+ Graduated Cum Laude, B.S Clinical Laboratory Sciences 1991

+ Betta Kappa Chi Science Society 1990

+ National Allied Health Honor Society 1990

+ Gastroenterology Board Certification 2002

+ American Board of Internal Medicine 2000

+ Enteryx Pig Model Training 2004

+ Capsule Endoscopy Training 2003

+ Board Eligible Medical Technologist

+ Florida Medical Licensure 2002

+ Kentucky Medical Licensure 1998

+ Maryland Medical Licensure 2003

+ Inflammatory Bowel Diseases Clinical Investigators Training Course

+ Texas Medical Licensure 2005

+ American Gastroenterology Association

+ American College of Gastroenterology

+ American Medical Association

+ American Society of Internal Medicine.

+ Phi Rho Sigma Medical Society

+ American Society of Clinical Pathology

+ Crohn’s And Colitis Foundation

+ January 2010 – 2018
Gastroenterologist – GHDDC Conroe & The Woodlands, TX

+ January 2006 – December 2009
Gastroenterologist – Sadler Clinic – Conroe & The Woodlands, TX

+ April 2003-December 2005
Woodholme Gastroenterology – Baltimore, Maryland

+ Aug 2002-March 2003
Digestive Disease Consultants – Altamonte Springs, Florida

+ 1991-1992
Hospital Medical Technologist, D.C General Microbiology Labs

+ 1991-1992
Georgetown University Hospital, Neonatology Labs

+ 1988-1991
Phlebotomist, Howard University Hospital, Washington, D.C

+ Hepatobiliary Tract Diseases and Inflammatory Bowel Diseases

+ Teaching Gastroenterology

+ Primary Intestinal Lymphoma Presenting As Chronic Diarrhea And Weight Loss
Awasum, Cibul and Gates.

+ French Presentation on the Life of Louis Pasteur, 1996

+ Presentation at the American College of Physicians Conference on a Case of
Endobronchial Sarcoid Presenting as Emphysema, 1996

+ Botulinum Toxin Injection By Eus of The Pyloric Sphincter For Treatment Of
Severe Gastroparesis.2001, Awasum, Bhutani, Mishra,Verne.

+ A Case Report of Solid Pseudopapillary Pancreatic Carcinoma Diagnosed By
Eus-Fna.2001 Awasum, Hochwald, Liu,& Mishra

+ Residents Grand Rounds Presentation on HIV Cholangiopathy, Harborview
Hospital Baltimore, 2004.

+ Residents Grand Rounds Presentation on Crohn’s Management, Harborview
Hospital Baltimore, 2005.

+ Fluent English, French, Pidgin English.


The mission at Greater Houston Digestive Disease Consultants is to provide leading-edge subspecialty care to help patients live healthier, more enjoyable lives.  We provide excellent medical care in a caring and service-oriented environment while utilizing the latest medical technology.


+ We are privately owned and operated making the needs of our patients a priority.
+ Our facility is designed to provide the highest level of comfort for patients.
+ We maintain the safest standards for our patients preventing critical infections.
+ We utilize the most advanced equipment to provide excellent patient care.


Welcome to GHDDC, where we believe in creating the path to a healthier lifestyle! Our objective is to create a lasting relationship with our patients. We shall strive for excellence in the quality of care our patients receive, treating them with RESPECT, COMPASSION, INTEGRITY and CARE.

We promise that you shall receive the highest quality of care from every member of our team you come in contact with; from our physician, to physician assistants, nurses, and administrators. We promise to make sure that you receive care with the finest technology available. Thank you for entrusting your care or the care of your loved ones to GHDDC.


Abdominal Pain
Crohn’s Disease
Routine Endoscopy
Pancreatic Diseases
Wireless Capsule Endoscopy
Irritable Bowel Syndrome (IBS)
Barrett’s Disease Treatment (Hallo)


Claudia Flores, PA-C was born and raised in Houston, Texas. She received her Bachelor of Science in Biology and Biochemistry at the University of Houston. She attended The University of Texas Medical Branch (UTMB) in Galveston, where she completed her Masters in Physician Assistant Studies. She received training in Gastroenterology and Hepatology at Weill Cornell Medical College at Houston Methodist. Following graduation, she practiced gastroenterology in Pasadena, Texas for three years before moving to The Woodlands.

Claudia is certified by the National Commission on Certification of Physician Assistants (NCCPA). She is a member of numerous professional societies including the Texas Academy of Physician Assistants and American Academy of Physician Assistants. She also maintains a membership with American Gastroenterology Association as well as Texas Society of Gastroenterology and Endoscopy. She is fluent in English and Spanish.

Carrie Sprayberry, MSN, APRN, FNP-C was born in Seattle, Washington and raised in Houston, Texas. She attended St. Pius the X High School in Houston, and later moved to Nacogdoches, TX where she attended Stephen F. Austin State University and earned her Bachelor of Science Degree in Nursing. She moved back to Houston and worked as a Registered Nurse for four years at Houston Northwest Medical Center as a Telemetry/Medical-Surgical nurse.

She was later offered a position at St. Luke’s The Woodlands Hospital where she spent her next five years working in many different arenas of medicine/nursing including endoscopy where she worked alongside Dr. Awasum.

While working at St. Luke’s Hospital, she decided to return to school and obtain a Masters Degree in Nursing, as a Family Nurse Practitioner from The University of Texas, Arlington. During her last semester, her training included gastroenterology and hepatology which focused on diseases of the gastrointestinal tract and liver.

Her extensive experience working in the Endoscopy lab and clinical rotations helped her discover her passion for gastrointestinal diseases and decided she would pursue her passion and work in a gastroenterology clinic, preferably, once again, with Dr. Awasum. The opportunity presented itself and she joined Dr. Awasum and his staff at Greater Houston Digestive Disease Consultants. She is also currently a member of the North Harris Montgomery County Nurse Practitioner Society, Texas Society of Gastroenterology and Endoscopy, and American Academy of Nurse Practitioners. When Carrie is not in clinic caring for her patient’s, she enjoys being outdoors, playing tennis, and being with her dog, Bear.