Meet Our Staff

Dr. Marci Linett, DVM


Dr. Marci Linett has had a love of animals and veterinary medicine her entire life. Growing up in her father’s veterinary hospitals, she knew someday she would also become a veterinarian. Dr. Linett attended UC Davis for both undergraduate and graduate school. She first received a Bachelor of Science in Psychology with a focus on Ethology, the study of animal behavior. She then graduated with a Doctorate of Veterinary Medicine studying all animals – small, large and wildlife. Her love of all animals has led her to work with not only dogs and cats, but also zoo animals and free-ranging wildlife. After graduating, Dr. Linett moved up to Washington to join her father and his two partners in opening and managing two small animal clinics.

In 2010, Dr. Linett sold her portion of her two practices in Washington in order to move back down to the Sacramento area and be closer to family and good friends.

Dr. Linett opened Mercy Pet Hospital of Citrus Heights in July 2011. Mercy Pet Hospital of Fair Oaks was opened in February 2015. She is excited to provide quality medicine for the pets of Citrus Heights, Fair Oaks and surrounding communities. Dr. Linett particularly enjoys small animal internal medicine, soft tissue surgery, orthopedic surgery and establishing long term relationships with her clients and their pets.

Dr. Linett’s outside interests include spending time with her family and pets, skiing, hiking, kayaking and playing in the water. Dr. Linett is an active member of the Sacramento Valley Veterinary Medical Association (SVVMA), California Veterinary Medical Association (CVMA), American Veterinary Medical Association (AVMA), Humane Society Veterinary Medical Association (HSVMA), and the Citrus Heights Chamber of Commerce.

Dr. Caitlyn Lennon, DVM

Medical Director

Dr. Lennon knew she wanted to be a veterinarian since she could properly pronounce the word at 5 years old. She grew up in Palm Springs, California, riding horses and bringing many stray animals into the home including dogs, kittens, and even snakes! Dr. Lennon completed her undergraduate degree at UC Davis with a B.S. in Animal Science. At UC Davis she was on the Equestrian Team and was active in the Vet Aide Club. she then sought to gain more experience in a veterinary hospital, and was fortunate enough to begin her career at none other than Mercy Pet Hospital!

She began working at the front desk the very first day Mercy opened, and eventually became a veterinary technician. Dr. Lennon was accepted into the College of Veterinary Medicine at Western University of Health Sciences in Pomona, California. Throughout veterinary school, Dr. Lennon developed a passion for shelter and community medicine and she became president of the student chapter of the Association of Shelter Veterinarians. She even traveled to Nicaragua with World Vets and Mexico to participate in wellness and preventative clinics. She also developed an interest in animal reproduction and was an officer in the student chapter of the Society for Theriogenology. Other special interests include radiology, soft tissue surgery, and internal medicine. She graduated from veterinary school with honors and is incredibly happy to be working at the same wonderful hospital where it all started. She enjoys spending time with her fiance and their 3 cats and 2 dogs.

Dr. Nicholas Young, DVM


Dr. Young grew up in Ohio and knew from an early age he wanted to work with animals. After graduating with a Bachelor of Arts in biology from Oberlin College, he attended The Ohio State University College of Veterinary Medicine and completed a surgical externship at the Ludwig Maximilian University in Munich, Germany. Following graduation, he moved to California to pursue a one-year rotating internship with the Sacramento Animal Medical Group. Near the end of that experience, he met his future wife and decided to stay in California. His professional interests include general practice and soft tissue surgery. Outside the hospital, he enjoys sailing, hiking, camping, and traveling with his wife, young son, and their boxer-mix, Bruce.

Dr. Emily Kian, DVM


Like many children, Dr. Emily Kian grew up with a love for all animals. Though she was born in Northern California, Emily moves numerous times throughout the US with her parents. However, she eventually found herself back in Sacramento towards the end of her high-school years. Emily graduated from Chico State – her parent’s Alma Mater – with a Bachelors degree in Conservation Biology. Emily had considered a career in wildlife medicine but after attending veterinary school at Western University in Southern California, she found that general practice is where her interests truly lie. Emily is excited to be part of the Mercy Pet Hospital team which allows her to work close to her and her husband, Chris’ family. During her free time she likes to go to the movies, visit local breweries, cuddle with her cat Addy, as well as hike and stand-up paddle board with her dogs Hazel and Cory. She and husband are looking forward to the arrival of their first child early Summer 2019.

Dr. Kelsey Hansen, DVM


Dr. Kelsey Hansen has been a California resident all her life, and doesn’t intend to stop now! Growing up in Southern California, she loved taking her family’s dogs to the beach. She completed her undergraduate degree in Neuroscience at UCLA in 2013, then her Doctorate of Veterinary Medicine at UC Davis in 2017. She is particularly interested in senior pet care and pain management, and is pursuing those interests with certifications in Veterinary Acupuncture and Rehabilitation. A self professed “crazy cat lady,” Dr. Hansen loves spending time with her three kitties, Tonks, Marley, and Beauregard, as well as running and biking along the Sacramento River.

Dr. Kelsey Woodson, DVM


Dr. Kelsey Woodson grew up in the Los Angeles area and had a love for animals all of her life. Growing up, her family had all types of pets; from dogs and cats to birds, reptiles, hamsters and guinea pigs. Surrounded by animals, of course she decided at an early age to become a veterinarian. That dream never changed. She received three associate degrees at El Camino Community College where she later transferred to Cal Poly San Luis Obispo and received her Bachelor of Science degree in Animal Science. While at Cal Poly she was the student manager of the on site veterinary clinic and she also worked at the dairy and equine units. From that experience she decided to pursue a career in small animal medicine and completed her Doctorate of Veterinary Medicine at UC Davis. She is especially interested in animal behavior. Dr. Woodson is excited to be part of the team at Mercy Pet Hospital. When she is not working she enjoys spending time with family, swimming, cooking and watching movies.

Gary Delfino

Practice Manager

As a native Californian, Gary grew up in the San Francisco Bay Area. He had a love of animals since he was a child. From a young age, he always had dogs, cats, birds, hamsters, and other creatures around his house. His goal from the age of 5 was to work in a veterinary hospital helping all the animals. He has also enjoyed working and residing in Colorado for 5 years.

His veterinary career started at the age of 15. As an R.O.P. student in San Mateo, Gary received his first true opportunity to work in a veterinary hospital. He was hired by Crystal Springs Veterinary Hospital as a kennel/assistant technician. He spent 8 years working for Dr. Rose working his way up from the kennels to being the office manager. Later on in Gary’s veterinary career, he worked at different hospitals as a technician and eventually progressed to the role of practice manager. Gary has a vast knowledge of all AAHA guidelines and protocols. He is also one of the founding members of the Sacramento Valley Practice Managers Association, a member of the Veterinary Hospital Managers Association, and moderates yearly at Western Veterinary Conference. In his spare time, he enjoys spending it with his wife Jackie, daughters Ashley and Hailey, son Elijah and his plethora of pets around the house. He also enjoys cooking, gardening, sports, computers, trips to the mountains as well as the coast, and relaxing with the family.

Amy J.

Office Manager

Amy has been in the veterinary field for 20 years and spent the last 6 years in management. She has a passion for helping clients get the care they need for their pets. She has been with Mercy Pet Hospital since they opened and enjoys creating lasting relationships with clients and their pets. She is the one who gets excited and giddy with clients when they bring in their new puppy or kitten for the first and the same person who cries with clients when they say their final goodbyes.

She has been an animal person since she was a toddler and was friends with the neighbor’s cat. She had a poodle growing up and was fortunate to also have 2 horses that she showed locally. She is owned by 2 cats, Giggsy and Maizie. She enjoys reading and doing jigsaw puzzles in her spare time, she also loves to travel.


Inventory Manager

As Inventory Manager, Wendy loves working behind the scenes to make sure Mercy Pet Hospitals are organized and well-stocked. She enjoys helping out in reception and meeting all of the different pet personalities! In her free time, she loves to go on road trips with her family and create art. Her studio cat, Rosie, is always by her side “supervising” every project!

Melissa A.

Lead Veterinary Technician

Melissa was born and raised in Placer County, from a young age she has always had a love and interest for animals because of her father. Over the last 10 years, she has been working in the veterinary field from Los Angeles to Sacramento and is working on becoming a registered veterinary technician in 2023. She has a husky named Azula, a chiweenie named Chiquita, a collection of freshwater fish, and two cats named Beast and Severus Snape. She enjoys trips to the beach, road trips, hiking, and any activities she can do with her dogs!

Kathy P.

Veterinary Assistant

Kathy has been in the veterinary field since 1992. She has always had a passion to help animals and is a fur mom to 2 cats and 2 dogs. She recently moved here from Oregon and enjoys spending time with her family and gardening.

Maria P.

Veterinary Assistant

Bio coming soon!

Lilia M.

Veterinary Assistant

Lilia has been working as a veterinary assistant for 2 years but has worked with animals in other capacities before that. She has 3 dogs at home that keep her busy. She enjoys roller skating and hiking, and is a big horror movie fan!

Yvette M.

Veterinary Assistant

Yvette is from Southern California and came up north to attend UC Davis where she graduated with a degree in Animal Science with a specialization in Equine Studies in 2021. She enjoys going to the gym in her free time equally as well as having a lazy day at home relaxing.


Veterinary Assistant

Lina has been with Mercy Pet Hospital for 2 years as a veterinary assistant. She has an associate’s degree in veterinary technology. She is currently 2 years into her Animal Science program at UC Davis, where she will receive her bachelor’s. Lina intends to become a Registered Veterinary Technician and work as a technician while going to school to become a veterinarian. She has prior experience with large animals through internships, but since being at Mercy, she has been enjoying working with cats and dogs in a General Practice. In her free time, she is either studying hard or hopefully at the beach with her partner and their golden retriever, Lemon. She also enjoys cooking, makeup, and photography. She’d like to thank you for allowing her to care for your pets! 🙂

Kim T.


Kim has worked in the veterinary field for about 12 plus years, starting in Napa. Kim has had all kinds of four-legged friends her whole life, which includes dogs, rabbits, chinchillas, gophers, birds, snakes, and many, many kitties! Kim is a total “Cat Lady”, At the moment she has 3 cats, Kevin, Sinatra, and Cassidy. She also has a canary named Steve. During my off time, I make many trips to Napa where my three children live. I love hiking, taking photos, and decorating.



Jovanny has been in the veterinary field since 2020. He started off as a kennel and vet assistant, then moved to work in reception. Ge joined this amazing team in August 2021. At home, he has a very loud teacup chihuahua (Penny) and a hyperactive kitten (Eren). During his free time, Jovanny enjoys lifting weights at the gym, playing video games, binge-watching shows, and relaxing in the sun.