Center for Digestive Diseases
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Colonoscopy Open Access Colonoscopy Upper Endoscopy Capsule Endoscopy ERCP Flexible Sigmoidoscopy Manometry Anorectal Manometry Pelvic Floor Therapy TIF Reflux Repair All Services
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Locations Contact Call 919-854-0041
About the Practice

Our physicians devoted to gentle, dignified care

Board-certified gastroenterologists serving western Wake County, Apex, Holly Springs, Fuquay-Varina, Cary, and Benson.

Our Physicians

Current gastroenterologists

Dr. H. Paul Singh, MD, FACG and Dr. Sirish Sanaka, MD see patients at our Cary and Benson offices.

H. Paul Singh, MD, FACG

H. Paul Singh, MD, FACG

Gastroenterology

Dr. Singh graduated from Texas Tech University School of Medicine, where he also completed his training in Internal Medicine and Gastroenterology. He is board-certified in both Internal Medicine and Gastroenterology.

Dr. Singh has a special interest in integrating nutrition into the management of various gastrointestinal disorders. His clinical interests include pancreatobiliary diseases, inflammatory bowel disease (IBD), acid reflux, and complementary therapies to support disease management.

Outside of his medical practice, Dr. Singh leads an active lifestyle and enjoys soccer, CrossFit, and yoga. He is also passionate about sports nutrition and provides education on soccer-specific nutrition to professional soccer players and young athletes.

Sirish Sanaka, MD

Sirish Sanaka, MD

Gastroenterology, Hepatology

Dr. Sirish Sanaka graduated from Western Kentucky University and completed his postgraduate training and Internal Medicine residency at Crozer-Chester Medical Center in Pennsylvania. He went on to serve as Chief Resident at Thomas Jefferson University's Frankford-Torresdale Campus in Philadelphia and completed his postdoctoral fellowship at Temple University Hospital. He later completed his Gastroenterology fellowship at East Carolina University in Greenville, North Carolina.

Dr. Sanaka joined the Center for Digestive Diseases and Cary Endoscopy Center in July 2019. He specializes in gastroenterology and liver diseases, with a focus on the diagnosis, treatment, and management of digestive and liver-related conditions. He is dedicated to providing comprehensive, personalized care to his patients.

Retired Physicians

Physicians who previously practiced with us

These physicians have retired and are no longer seeing patients.

Raj V. Makam, M.D., M.R.C.P. (UK), F.A.C.G.

Raj V. Makam, M.D., M.R.C.P. (UK), F.A.C.G. Retired

Gastroenterology

Dr. Makam graduated from Mysore University-India and completed Post Graduate Diploma in Pediatric and Adult Gastroenterology from the University of Vienna (Austria). He also trained in England in Internal Medicine and Gastroenterology obtaining a MRCP (Membership of Royal College of Physicians). He completed his residency in Internal Medicine from Memorial Hospital in Worcester, Massachusetts and a fellowship in Gastroenterology from the University of Louisville, Kentucky. He is Board Certified in Internal Medicine and Gastroenterology. His special interests are GERD, Inflammatory Bowel Disease and Liver Diseases.

Douglas B. Pritchett, MD

Douglas B. Pritchett, MD Retired

Gastroenterology

Dr. Pritchett is a graduate of Vanderbilt School of Medicine He completed his Internship and Residency in Internal Medicine at the Medical College of Virginia in Richmond, followed by his Gastroenterology Fellowship was at the University of Tennessee Center for Health Sciences in Memphis He has been practicing Gastroenterology in the Triangle area of North Carolina since 1988.

Why Us

A Triangle GI practice built for unhurried, coordinated care

The Center for Digestive Diseases (CDD) has provided gastroenterology care in western Wake County and the surrounding towns of Apex, Holly Springs, and Fuquay-Varina for more than 21 years.

  • In-house endoscopy center for colonoscopy and upper endoscopy
  • Over 100,000 invasive and noninvasive procedures performed
  • Advanced biliary procedures, ERCP, motility, and pH testing at WakeMed Cary
  • WakeMed Key Community Care (WKCC) accountable-care partner
  • Blue Cross Blue Shield high-value, low-cost distinction
  • Two Triangle locations: Cary and Benson
Read Why Us

1. GERD

Nutrition and pharmacologic care, now with Transoral Incisionless Fundoplication (TIF) to treat reflux without abdominal incisions.

2. IBD

Nutritional and pharmacologic care, plus in-office infusion therapy co-managed with Duke and the UNC IBD clinic.

3. Liver Health

Management of liver-related conditions, including fatty liver disease and other liver disorders.

Clinical Services

What we treat and how we diagnose

Drawn from our full service list on the practice site—endoscopy, motility testing, IBD, liver, and reflux care under one team.

Gastroenterology Abdominal ultrasound Colonoscopy ERCP, including sphincterotomy and biliary stent placement Flexible sigmoidoscopy Upper endoscopy Management and treatment of diarrhea & constipation Management and treatment of pancreatic diseases Liver biopsy with interventional radiology Placement of external feeding tubes (gastrostomy) Polypectomy Studies of esophageal problems, such as difficulty swallowing Anorectal manometry Pelvic floor therapy Fecal transplant Digestive diseases Achalasia Colon polyps Diagnosis and treatment of liver diseases Gastroesophageal reflux disease (GERD) Heartburn Irritable bowel syndrome Clostridium difficile (C. diff) Diagnosis and treatment of Crohn’s disease and ulcerative colitis Treatment of achalasia Endoscopic ultrasound Open Access program for colonoscopy
Prompt Coordination

Meet our physicians in Cary or Benson

Call our Cary or Benson office. An appointment is confirmed when our scheduling team speaks with you.

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Schedule & Contact

Call or visit Cary & Benson

Schedule a procedure or clinic visit by phone. Both offices are listed here.

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Exterior of the Cary NC medical office building Cary Office

Cary Endoscopy Center & Clinics

Serving Cary, Apex, Raleigh, Holly Springs, Morrisville
Address

1120 SE Cary PKWY, Suite 204
Cary, NC 27518

Direct Phone 919-854-0041
Clinical Fax 919-854-0049
Clinic & Suite Hours Monday – Friday: 8:00 AM – 5:00 PM
Google Maps Directions Call Cary
Exterior entrance of the Benson NC medical center Benson Office

Benson Office

Serving Johnston, Harnett, Sampson & Southern Wake Counties
Address

1 Medical Dr.
Benson, NC 27504

Direct Phone 919-854-0041
Accessibility Direct I-95 & I-40 Access
Clinic & Suite Hours Monday – Thursday: 8:00 AM – 4:30 PM
Google Maps Directions Call Benson