Our Veterinarians

Dr. Hart

Dr. Melissa Hart

Veterinarian and Partner

Dr. Hart joined in the fall of 2012 after returning to Northern California from upstate New York where she practiced full-time for two years as an associate veterinarian at a busy, multi-doctor, AAHA accredited small animal practice and part-time at a local emergency clinic. In addition, she volunteered weekly at the CNYSPCA to perform spays and neuters and to provide wellness care for shelter animals. Dr. Hart graduated from the University of Minnesota College of Veterinary Medicine in 2010. She is highly skilled in diagnostics, emergency medicine and surgery. She resides in Santa Rosa with her husband, Michael, and two sons, Quincy and Emmett. Her four-legged family includes her canine kid Emmy and several feline kids.

Dr. Amaral

Dr. Alina Amaral


Dr. Alina Amaral was born and raised in Sonoma, California where she was involved in the agricultural community, participating in 4-H and FFA. Upon graduating from high school, she attended California Polytechnic State University, San Luis Obispo where she received her bachelor’s degree in animal science with a pre-veterinary concentration. Dr. Amaral graduated from Western University of Health Sciences College of Veterinary Medicine in May 2017. Dr. Amaral continues to support the agricultural community and spends her free time assisting the younger 4-H and FFA members with their animal projects. She continues to raise her registered Angus beef cattle and resides in Sonoma with her Australian Shepherds, Cinch, Remi, and Paisley. Dr. Amaral is excited to join the team at Arroyo Veterinary Hospital to start her career in veterinary medicine.

Dr. Fallow Dowdle


Dr. Fallon Dowdle grew up in Encinitas, a beach town in San Diego. Upon graduating from high school, she attended UC Davis where she received her bachelor’s degree in animal science with a concentration in companion animals and behavior. During her time at Davis, Dr. Dowdle fell in love with Northern California and couldn’t wait to move back. She also received a master’s degree from California Polytechnic State University, San Luis Obispo in agriculture business. In May 2018, Dr. Dowdle graduated from Western University of Health Sciences College of Veterinary Medicine. Dr. Dowdle lives in Napa with her husband, Justin, and enjoys spending time outdoors with their two black Labradors Gus and Taw.  

Dr. Alfonso Gerbolini


Originally from Lima, Peru, Dr. Alfonso Gerbolini attended Purdue University in Indiana for veterinary school, graduating in 2012. His primary interests are in small animal medicine, preventative care and dentistry. He thoroughly enjoys working closely with clients in an effort to help improve his patient’s quality of life and enrich the human-animal bond. He believes strongly that compassion and dedication are qualities of a good doctor and strives to have both characteristics centered in his daily practice. Fluent in Spanish, Dr. Gerbolini enjoys the chance to speak it as much as possible and keep his skills sharp, socially and professionally.

Outside of his work at Arroyo Veterinary Hospital, Dr. Gerbolini lives with his wife in Petaluma and, since arriving in the Bay Area, he enjoys spending time with family, sailing and climbing. He and his wife recently lost their best, furry friend of 8 years and are taking a short break before welcoming another pet into their home.

Uniquely, Dr. Gerbolini has an affinity for donkeys and elephants and particularly admires their strength, loyalty and social abilities. Each summer prior to COVID, he volunteered with Equitarian Initiative, a non-profit organization that helps to train veterinarians in the mountains of Peru. Although his skills are the sharpest with dogs and cats, all creatures are special to him and he does his best to offer his expertise and improve his training in all areas.