With the healthcare industry, rapidly changing due to external unstoppable forces such as health management organizations (HMO’s), governmental regulations, and large medical groups we still feel it is important to carry on our simple mission, which has been in place for 25 years, to provide the best quality care to our patients. Our center encourages a work environment where diversity is valued, quality of life is enhanced, and individual aspirations are fulfilled in order to achieve our service commitment to our patients.
The Digestive Disease & Nutrition Center of Westchester is a place where the genuine care and comfort of our patients is our highest mission. We pledge to provide the finest personal service and facilities for our patients who will always enjoy a warm, relaxed, yet refined ambience in our brand new state-of-the-art center.
Below are some of the key staff members that are here to make your experience with us a memorable one. If you ever have a concern, complaint, complement or suggestion, please feel free to inform your physician or myself by calling (914) 683-1555. We sincerely hope that your relationship with us will be beneficial and that you will look forward to a long and happy relationship with The Digestive Disease & Nutrition Center of Westchester.
Sincerely

Richard Rosemarin
Chief Operating Officer
Richard Rosemarin
Chief Operating Officer
Richard has been working at the Digestive Disease & Nutrition Center for almost twelve years, in his current position Richard is responsible for overseeing all daily operations of the center as well as the centers external operations such as our new state-of-the-art endoscopy suite. This includes overseeing the appointment scheduling, billing, and patient flow for all outpatient activities; managing human resources, facilities, financial, implementing and maintaining the centers Electronic Medical Records system and other technological functions for the center.
He is currently a member of both the American Gastroenterology Association and Medical Group Management Association. He is currently obtaining his Bachelors of Arts in Information Technology Management as well as Strategic Global Management at Babson College.
e-mail Richard Rosemarin
Chris Riesch
Billing Manager
Privacy Officer
Chris has been with Digestive Disease & Nutrition Center since 1996 and heads up the billing and accounts receivable departments as well as working close with the Administrator of the DDNCW in the reception and nursing departments. Prior to joining DDNCW she worked in numerous medical settings, and she brings a wealth of billing experience and knowledge. Over the years she has cultivated excellent working relationships with the provider representatives at the major local insurance plans. Chris is also our privacy manager.
e-mail Chris Riesch
Dena Naporkowski
Assistant Billing Manager
Insurance Benefit Coordinator
Dena has been with Digestive Disease & Nutrition Center since 2001 and is responsible for obtaining health benefit information for patients covered by insurance companies. Dena is also responsible for all the scheduling of all procedures and works closely with the billing manager in our accounts receivable department.
e-mail Dena Naporkowki
Reception
Milagros Garcia (Bi-Lingual)
Denise Marino
Cynthia Trivino (Bi-Lingual)
Geanette Trivino (Bi-Lingual)
Billing Department
Dana Panella
Nursing Department
Diane Pastore
Sadiya Sellers
Diedre Griggs