Dr. Eva Radke, Owner

Dr. Radke is originally from Marin County and grew up down the road in Kentfield. She earned a Bachelor of Science in Zoology from the University of Washington in Seattle. Prior to starting veterinary school, she worked for a small pharmaceutical company developing new drugs for asthma and COPD. Dr. Radke received her Doctor of Veterinary Medicine from the University of California at Davis in 2008. She worked in general practice in Marin for 12 years prior to purchasing Ross Valley Veterinary Hospital. 


Dr. Radke’s approach to medicine tends to be conservative, but she strongly believes in preventative care with regular exams, vaccinations, parasite preventatives, and good nutrition. She has special interests in dermatology and infectious disease, as well as senior pet care. Dr. Radke’s ultimate goal is to provide high-quality personalized care for your dog or cat in order to maintain their individual health and your human-animal bond. She truly believes that this bond is an essential part of our lives and our own emotional well-being.


Dr. Radke now lives in Mill Valley with her grey tabby cat Riley and rescue Pug Eloise (“Weezy”). In her free time, she enjoys hiking, skiing, cooking, and traveling.

Heather Heitz, Owner/Practice Manager

Heather has been working towards owning her own practice for over a decade, even if she didn’t realize it in the beginning. Sixteen years ago, she started as a Client Services Representative at a very busy and growing veterinary practice in San Rafael while she worked towards becoming an RN. Quickly she realized that her love for animals, strong customer service skills, and appreciation for veterinary medicine was another passion to focus on. Applying her education in health sciences and business management to her career in the veterinary field was effortless, and she quickly moved her way up to Hospital Administrator.

After working together for nearly 10 years, Heather and Dr. Radke decided to step out on their own and build the practice they had always dreamed of working at. A practice that provides exceptional care, customer service, and a sense of community.

Heather is a Sonoma County native but has enjoyed working in Marin for the past 16 years. In her free time, she enjoys being outside gardening, hiking, or relaxing by the pool. She spends weekends with her favorite guys – her husband, son, career change Guide Dog and a sweet little Siamese kitty.

Dr. Doug Evans

Dr. Doug Evans grew up in the mountains of Colorado and always dreamed of being a veterinarian.   He attended Colorado State University for his veterinary training.  He has had a wide variety of clinical practices, and though he loves dogs and cats, he has always pursued a special interest in cats, being a member of the American Association of Feline Practitioners.

Dr. Evans’ style of medicine tends to be conservative: always wanting to educate clients and make decisions together about the best treatment options for their pets.

Jenni Lin, Veterinary Technician

Jenni has been a tech for 15 years, working with small animals. She graduated from Mills College with a double major in Computer Science and Psychology in 1985. She joined the Ross Valley family in April 2015. She enjoys positive interactions with clients, assisting in surgery, and is interested in veterinary dentistry and physical rehabilitation. She has taught dog training classes and behavior consultations at the Marin Humane Society and conducts private lessons.

Jenni lives in Novato with her husband, Dan, and her daughter, Olivia. In her spare time, she enjoys cooking, gardening, hiking, camping, and going to the beach with her two Labradors, Petey, and Tule.




Erin Breck, Registered Veterinary Technician

Erin was born in San Francisco, but raised in Marin, and is happy to call Ross Valley Veterinary Hospital her new home!  She joined the family in March of 2021.  Her childhood in Lucas Valley instilled a deep connection to nature, with Open Space literally in her backyard.
With plans to become a veterinarian, Erin began working as a kennel attendant in high school and went on to pursue a Bachelor’s degree in Animal Biology, graduating from U.C., Davis in 2005.  Her career path took a slight turn when she fell in love with the hands-on aspect of veterinary technology, earning her RVT license in 2011.  She has a special interest in dentistry and radiology.
Erin lives in San Rafael with her husband, son, and long-haired Torbie cat, Ruby.  Outside of work, she enjoys cooking, hiking, and photography.

Jennifer Rodas, Registered Veterinary Technician

Jennifer was born and raised in Marin County. She attended Cal Poly San Luis Obispo in 2012 with the hopes of becoming a veterinarian but was unfortunately unable to graduate. She continued to work as a veterinary assistant until 2019 when she had the desire to become an RVT. In October of 2020, she obtained her RVT license and has loved all the opportunities she has had since then. One of them being able to be a part of the great team at Ross Valley Veterinary Hospital. Jennifer enjoys helping in surgery and is interested in dental and radiology.

Jennifer currently resides in San Anselmo with her husband Joni, daughter Joanna, and our two chihuahua mix dogs – Adira and Neville.

Rebecca Hancorne, Veterinary Technician 

Rebecca has worked at Ross Valley Veterinary Hospital since 2016. She graduated from the College of Marin with an Associate’s degree in English in 2015. In 2021, she graduated from the University of Hawaii at Manoa with a degree in Animal Sciences. While having worked alongside dogs and cats, she has also volunteered for other animal organizations like the Felidae Conservation Fund in Mill Valley as well as in the veterinary clinic at the Honolulu Zoo and for the Marine Health and Stranding Lab in Hawaii. She enjoys spending time doing wildlife and landscape photography in her spare time. She currently has two cats named Iris and Ollie.

Marina Mondot, Veterinary Technician Assistant

Marina was born and raised in Fairfax, spending the majority of her time working and living outdoors. She graduated from theUniversity of Redlands majoring in History, Sociology, and Anthropology with a minor in Women’s Gender and Sexuality Studies. She grew up surrounded by animals small and large and spent several years teaching Hunter/Jumper lessons and directing Equine Summer Camps across the Petaluma countryside.

Marina started at Ross Valley as a Client Services Representative and quickly moved into the Veterinary Technician Assistant role. She loves working and connecting with all animals she comes across, including her two rescue cats Lucifer and Beau. In her free time, she enjoys reading, writing, sketching, and being in nature.

Brigit Rile-Schmidt, Veterinary Technician Assistant

Brigit was born and raised in the Bay Area and moved to Marin from the East Bay in 2015. She is currently a student at the College of Marin, working towards a degree in Animal Science. She began working at Ross Valley in August 2020 as a Client Services Representative and is now training to be a Veterinary Technician Assistant.

Brigit lives with her rescue dog Tashi, and her two rescued street kitties, Damon and Felix.

Patricia Pagan, Veterinary Technician Assistant

Patricia was born in San Francisco but moved to Sacramento at a young age. She has always had a fondness for animals and landed her first animal job in 2015. Since then, she has worked as a kennel technician, veterinary receptionist, veterinary assistant, and veterinary pharmacy technician. In 2020, she became a Licensed (human) Pharmacy Technician, but stayed in the animal field, as caring for animals is her passion.

Patricia has 3 cats (Spaz, Luna, and Salem) as well as 3 dogs (Violet, Dottie, and Honey). In her free time, she likes beach hopping and photography.

Monica Lemley, Client Services Representative

Monica was born and raised in Sonoma County. She previously attended Empire College, where she completed the Medical Office Assistant Program. After working in a busy eye surgery office, she jumped at the chance to work with her favorite four-legged friends at Ross Valley.

Monica comes from a large family and loves doting on her nieces and nephew. She thoroughly enjoys and pursues adventures of all sorts and lives life to the fullest alongside her dog and “best girl” Rylee.





Mike Gaspers, Facilities Manager

Mike was born in San Francisco, California. Having lived in scenic Marin County since age three, he has always had pets when he was growing up.

He’s grown to appreciate the beautiful kingdoms of plants and animals we’ve been blessed with both here and worldwide.

Mike has been working at Ross Valley Veterinary Hospital since August 1993.