Staff

Dr. Waien is the medical director of New England Wound Care. He is also a wound care consultant for several local nursing homes in Franklin, Hampshire and Worcester Counties in Massachusetts. He endeavors to personalize the treatment plan for each individual patient using the most advanced treatment options available. 

Dr. Waien has been providing wound care in Franklin County since 2014. Before specializing in wound care, he worked as a hospitalist at Baystate Franklin Medical Center for over 10 years. He has served as an interim medical director at Baystate Franklin Medical Center and at Northfield Mount Hermon School.

Dr. Waien received a personal support award for graduate training: multi-disciplinary program in health services research and clinical epidemiology at Sunnybrook & Women’s College Health Sciences Center in Toronto, Ontario. He has authored many articles in peer reviewed journals and has also been a reviewer for the Journal of American Medical Association

Rachel brings over 18 years of comprehensive healthcare experience to her role as a Certified Nurse Practitioner at New England Wound Care. Her career began in foundational roles at Valley Medical Group as a Health Information Clerk and at Charlene Manor as a Certified Nursing Assistant. These early experiences inspired her to pursue advanced nursing education, earning her Bachelor of Science in Nursing from Elms College in 2012, followed by a Master of Science in Nursing from Walden University in 2017.

Rachel served as a Registered Nurse for five years at Baystate Medical Center and Baystate Franklin Medical Center, gaining extensive clinical experience across diverse patient populations. After becoming a Certified Nurse Practitioner, she practiced in Primary Care, where her growing interest in wound management led her to specialize in this field.

For over seven years, Rachel has dedicated her practice exclusively to wound care, managing both acute and chronic wounds, and addressing complex healing challenges. Her approach is rooted in evidence-based interventions with a strong focus on improving patient outcomes and quality of life. Her passion for wound healing is evident in her compassionate care and clinical expertise. I’m looking forward to being your partner in healing!

Christina Collins, FNP-BC is a board-certified Family Nurse Practitioner with over 15 years of experience spanning primary care, vascular surgery, and wound care. Known for her calm, empathetic demeanor, and collaborative patient-centered approach, she takes the time to build trust, educate her clients, and overall deliver personalized, high-quality care.


Christina’s training and experience have afforded her the opportunity to treat a wide range of presenting issues including acute and chronic wounds, pressure injuries, and diabetic and venous ulcers. She has held advanced certification in wound care and commits herself to excellent patient care by continuing to build her knowledge base through her ongoing work and staying up to date with current best practices and continued medical education.

Outside of work, Christina enjoys spending time with her wife, child, family and friends. She finds balance and joy in going for walks, hiking, practicing tai chi, gardening, and travel.

David Dionne is a Family Nurse Practitioner that has been in Healthcare since 2000. He has worked in various positions such as a Certified Nurses Aid (CNA), Licensed Practical Nurse (LPN), and Registered Nurse (RN). He worked for many years on a cardiac, neuro, surgical, and medical intensive care unit. He is an Advanced Practice Registered Nurse, with a specialization as a Family Nurse Practitioner from American International College.
His primary focus is to enhance patient centered care and build a better rapport with patients and families. 

David has worked in primary care prior to transitioning into wound care, where he had the opportunity to enhance his wound care knowledge while training closely under Dr. Waien. David has also obtained many certificates in continued wound care education.
In his free time, he enjoys spending time with his husband, and Olive (his Boston terrier). He and his husband enjoy learning to play the cello together, and exploring the world.

Anzhela Savonina, FNP-C is a board-certified Family Nurse Practitioner with over 18 years of experience in healthcare. She earned both her Bachelor of Science in Nursing and her Master of Science in Nursing at American International College. Prior to becoming a nurse practitioner, Anzhela worked as a registered nurse for 13 years in a variety of clinical settings and roles, developing a strong foundation in patient-centered care.

For the past seven years, Anzhela has specialized in wound care, where she provides and manages care for a wide variety of acute and chronic wounds using advanced treatment modalities including hyperbaric oxygen therapy, wound debridement, negative pressure wound therapy, and application of cellular and tissue-based products. In addition, she has in-depth experience with a wide variety of wound dressings, allowing her to tailor treatment plans to individual patient needs. She is dedicated to improving patient outcomes, preventing complications, and enhancing patients' overall quality of life through evidence-based practice and is passionate about advancing healing rates through innovative and comprehensive wound management.