We have an on-site billing supervisor to assist you with your billing concerns. Stacy is our resident expert, and will guide you along with any problems or concerns you may be having, either prior to or after your visit with us. Stacy can be reached at extension 17. Hamilton Gastroenterology Group is strongly committed to communication with our referring primary care physicians. Cindy, our office transcriptionist, gets our physician dictation and patient reports out promptly and efficiently to your family doctor primary care physicians. Cindy, our office transcriptionist, gets our physician dictation and patient reports out promptly and efficiently to your family doctor .