Ronald Markos is a Gastroenterologist in Sellersville, Pennsylvania. Dr. Markos is rated as a Distinguished provider by MediFind in the treatment of Ulcerative Colitis. His top areas of expertise are Hemorrhoids, Ulcerative Colitis, Diverticular Disease, Endoscopy, and Colonoscopy.

Jerome Burke is a Gastroenterologist in Quakertown, Pennsylvania. Dr. Burke is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. His top areas of expertise are Visceromegaly, Alcoholic Cirrhosis, Enlarged Liver, Gastrectomy, and Endoscopy.

William O'toole is a Gastroenterologist in Quakertown, Pennsylvania. Dr. O'toole is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. His top areas of expertise are Visceromegaly, Alcoholic Cirrhosis, Enlarged Liver, Endoscopy, and Gastrectomy.

Michael Cassidy is a Gastroenterologist in Quakertown, Pennsylvania. Dr. Cassidy is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. His top areas of expertise are Alcoholic Cirrhosis, Ascites, Diverticular Disease, Endoscopy, and Colonoscopy.

Keith Kearney is a Gastroenterologist in Quakertown, Pennsylvania. Dr. Kearney is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. His top areas of expertise are Swallowing Difficulty, Painful Swallowing, Gastrointestinal Bleeding, Endoscopy, and Gastrectomy.

Ravindar Reddimallu is a primary care provider, practicing in Internal Medicine in Quakertown, Pennsylvania. Dr. Reddimallu is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. His top areas of expertise are Acute Kidney Failure, Hypertensive Heart Disease, Renovascular Hypertension, Endoscopy, and Ureteroscopy.

Kevin Reinold is a primary care provider, practicing in Family Medicine in Quakertown, Pennsylvania. Dr. Reinold is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. His top areas of expertise are Pneumonia, Sinusitis, Empyema, and Atypical Pneumonia.

Alfred Vasta is a primary care provider, practicing in Internal Medicine in Quakertown, Pennsylvania. Dr. Vasta is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. His top areas of expertise are Obesity in Children, Lung Metastases, Foot Drop, and Glucocorticoid-Remediable Aldosteronism.

Ira Kelberman is a Gastroenterologist in Quakertown, Pennsylvania. Dr. Kelberman is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. His top areas of expertise are Enlarged Liver, Visceromegaly, Alcoholic Cirrhosis, Gastrectomy, and Endoscopy.

David Bub is a Colorectal Surgeon in Allentown, Pennsylvania. Dr. Bub is rated as an Advanced provider by MediFind in the treatment of Ulcerative Colitis. His top areas of expertise are Proctitis, Mesenteric Venous Thrombosis, Anal Fissure, Ileostomy, and Hernia Surgery.

Emilia Secheresiu is a primary care provider, practicing in Internal Medicine in Allentown, Pennsylvania. Dr. Secheresiu is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. Her top areas of expertise are Childhood Iron Deficiency Anemia, Familial Hypertension, Glucocorticoid-Remediable Aldosteronism, and Hypertension.

Kathleen Lukaszewski is a Gastroenterologist in Sellersville, Pennsylvania. Dr. Lukaszewski is rated as an Advanced provider by MediFind in the treatment of Ulcerative Colitis. Her top areas of expertise are Hemorrhoids, Diverticular Disease, Enlarged Liver, Endoscopy, and Colonoscopy.

John Park is a Colorectal Surgeon in Allentown, Pennsylvania. Dr. Park is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. His top areas of expertise are Anorectal Abscess, Anal Fissure, Familial Colorectal Cancer, Hernia Surgery, and Colostomy.

Kristen Halm is a Colorectal Surgeon in Allentown, Pennsylvania. Dr. Halm is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. Her top areas of expertise are Familial Colorectal Cancer, Colorectal Cancer, Lynch Syndrome, Hernia Surgery, and Ileostomy.

Philosophy of care | As a colorectal surgeon, I strive to provide the highest level of care while treating you with the respect and dignity that you deserve. | Why I entered medicine | In college, I volunteered at a hospital for children with special needs. While there I was able to personally see how much of a role the physicians and nurses played in the lives of the children and that feeling is what drew me toward medicine. | Community involvement | Throughout my career I have volunteered in clinics for those in homeless shelters. I have also participated in church and community health screenings and events. | Personal interests | Outside of my medical/research interests, I enjoy spending time with my family and traveling. Dr. Sangster is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. His top areas of expertise are Hemorrhoids, Anorectal Abscess, Familial Colorectal Cancer, Ileostomy, and Hemorrhoidectomy.

Kiley Walp is a Gastroenterologist in Doylestown, Pennsylvania. Dr. Walp has been practicing medicine for over 17 years and is rated as an Advanced provider by MediFind in the treatment of Ulcerative Colitis. Her top areas of expertise are Gas Bloat Syndrome, Familial Adenomatous Polyposis, Gardner Syndrome, Colonoscopy, and Gastrectomy. Dr. Walp is currently accepting new patients.

Alan Chang is a Gastroenterologist in Doylestown, Pennsylvania. Dr. Chang is rated as an Advanced provider by MediFind in the treatment of Ulcerative Colitis. His top areas of expertise are Colitis, Familial Adenomatous Polyposis, Barrett Esophagus, Gastrectomy, and Colonoscopy. Dr. Chang is currently accepting new patients.

Philosophy of care | I treat my patients as I would like to be treated, carefully listening to their problems and concerns. As physicians, we must always do the right thing. Excellent patient care requires attention to detail with a high standard of ethical/moral practice. | Why I entered medicine | Medicine requires the right combination of scientific knowledge and compassion. Surgery allows me to care for all aspects of patients, and colorectal surgery has a wide breadth of procedures and diseases, making it a fascinating field. | Community involvement | My start in medicine began as a volunteer EMT for over 10 years. I am a graduate of Lehigh University, and my wife and I have moved back to the Lehigh Valley, excited to make it our home and meet the members of this great community. | Personal interests | Outside of my medical/research interests, I enjoy spending time with my family, traveling and trying new foods. I also enjoy exercise and outdoor activities. Dr. Johns is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. His top areas of expertise are Mesenteric Venous Thrombosis, Anorectal Abscess, Anal Fissure, Pancreaticoduodenectomy, and Pancreatectomy.

Sean Lacey is a Gastroenterologist in Allentown, Pennsylvania. Dr. Lacey is rated as a Distinguished provider by MediFind in the treatment of Ulcerative Colitis. His top areas of expertise are Ulcerative Colitis, Crohn's Disease, Diverticular Disease, Colonoscopy, and Endoscopy.

Philosophy of care | I strive to provide you the highest possible medical care and to build a long-term relationship. I believe strong physician-patient relationships are the basis for excellent health care. With each visit, it’s important to attempt to make you feel better and happy. | Why I entered medicine | I entered the medical field to help others overcome their ailments. | Community involvement | I founded Community Professional Services free clinics in Coopersburg and at New Bethany EC Church in Allentown. | Personal interests | I like golfing, cooking, gardening and spending free time with my family. Dr. Shoenberger is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. His top areas of expertise are Fructose-1,6-Bisphosphatase Deficiency, Tracheitis, Glucocorticoid-Remediable Aldosteronism, and Familial Hypertension.