Dr. Peter Dowell
Owner
Dr. Peter Dowell is the proud owner of Alto Tiburon Hospital. A little history about Dr. Dowell: He was born in New York City to British parents, subsequently moved back to the UK. He then moved back to the U.S. when he was seven, hence dual citizenship. He is happily married to his wife, Julie. They have been married for 25 years and have two kids in college. He acquired this hospital in June of 2019 (his 3rd practice that he's owned). He is the former practice owner of the Covington Creek Veterinary Clinic in Mendocino and the Helix Pet Hospital in San Diego. His interests include nature and science and, in fact, he used to work in National forests helping fight fires in his younger years. He has degrees in Forestry, Biology, graduate school in Parasitology and Doctor of Veterinary Medicine followed by a Matching Program Internship in surgery and medicine. Additionally, he has a membership in the American Veterinary Medical Association, The Royal College of Veterinary Surgeons, nominated to the Phi Zeta veterinary honor society.
His interests include endocrinology, dermatology, surgery, small exotic medicine, and most aspects of small animal medicine and surgery.
Dr. Dowell's practice philosophy is utilizing cutting-edge technology and good old-fashioned compassion and care for his patients. He really likes to take the time to get to know families and their pets and establish a long-lasting relationship.
Come. Sit. Heal.
Julie Dowell
Hospital Owner
Originally from Carlsbad, CA, Julie earned her degree in archaeology from UC San Diego. Over the past 30 years, she and her husband, Dr. Peter Dowell, have successfully owned and operated several veterinary practices. Now living in Mill Valley with Dr. Dowell and their beloved Border Terrier, Bonnie, Julie enjoys hiking the local trails and sharing wine and laughter with her close-knit group of girlfriends. As the anchor and rock of Alto Tiburon Veterinary Hospital, she keeps everything grounded—and she couldn’t be more excited for the move into the new building.
Dr. Louise Rathjen
Veterinarian
Born in London, England, Dr. Louise Rathjen has lived in multiple cities across the U.S. before pursuing her veterinary degree at Western University of Health Sciences. She was selected for a highly competitive internship at VCA West Los Angeles Animal Hospital, one of the top programs in the country. With a deep passion for senior pets and end-of-life care, Dr. Rathjen founded her own practice, which grew to serve families throughout the Bay Area. After selling the practice to spend more time with her family, she returned to general practice, where she now enjoys treating patients of all ages—from playful puppies and kittens to her beloved geriatric patients. Her focus remains on quality of life, pain management, and compassionate care. Dr. Rathjen lives in Belvedere with her husband, two children, three cats, and three dogs. She also has a horse, Tigger, stabled in Sonoma, where she rides hunter jumper. When she’s not in the clinic, you’ll likely find her with her family, at the barn, or off exploring new places.
Dr. Juliet Bowdidge
Permanent Relief Veterinarian
Originally from Toronto, Canada, Dr. Juliet Bowdidge always knew she had a deep love for animals—especially cats, which she finds truly magical. Her passion led her to pursue veterinary medicine, beginning with her undergraduate studies at Queen’s University in Ontario, where she graduated on the Dean’s Honor List with Distinction. She went on to earn her Doctor of Veterinary Medicine degree summa cum laude from St. George’s University in Grenada, completing her clinical training at the prestigious Cornell University.
Now living in the Bay Area with her husband, two stepchildren, and her beloved cat “Dis,” Dr. Bowdidge enjoys spending her free time hiking, trying new foods, and soaking up the California sunshine—the very reason she left Canada for the West Coast.
Kristina k.
RVT – Hospital Manager
Kristina is a Registered Veterinary Technician with 15 years of experience and a lifelong love for animals. She’s passionate about Fear Free care and leads our team as Hospital Manager. At home, she enjoys time with her husband, young child, and their rescue dog from China, Kai.
Janice S.
Receptionist
Janice has been a dedicated receptionist in the veterinary field for many years and is truly the heart of our front desk. She has a deep love for all animals, but senior cats hold a special place in her heart. At home, she’s the proud mom to three beloved senior cats—Buddy, Jade, and TJ—all over 18 years old. Janice is an incredibly important part of our team, and we’re so lucky to have her. Our clients love her just as much as we do!
Alondra A.
Veterinary Technician
Alondra’s love for animals began at a young age and has only grown stronger over the years. She recently completed her veterinary technician program at SRJC and is preparing to take the VTNE to become a Registered Veterinary Technician. Quiet and focused, Alondra is highly skilled—especially when it comes to placing IV catheters, where she’s one of the best. Outside of work, she enjoys spending time with her two huskies, Smokey and Canelo and her cat, Whiskey.
Dylan S.
Veterinary Technician
Dylan has a strong passion for all animals, especially reptiles, and is currently studying to become a Registered Veterinary Technician. He hopes to go on to vet school and become an exotics veterinarian. Dylan is especially fascinated by veterinary dentistry and loves assisting with dental cleanings and procedures. In his free time, you’ll find him hanging out with his bearded dragon, Radahn, and his tortoise, Renala.
Kiara M.
Veterinary Technician / Social Media Director
Bilingual
Kiara has been in the veterinary field since 2016. After taking a few years off to raise her kids, she returned to the field she loves—working with animals. Her passion for veterinary care and calm, caring nature make her a trusted part of the team. At home, she stays busy with her family and her 2-year-old Field Golden Retriever, Carly. Kiara is dedicated to making every pet feel safe, loved, and well cared for.
Lesley A.
Receptionist
Bilingual
Lesley is a skilled receptionist with extensive customer service experience and a genuine love for animals. She’s often the first friendly face you’ll see when you walk through our doors, always ready to help with a warm smile. Outside of work, Lesley enjoys spending quality time with her kids and caring for her two beloved cats, Petrúcio and Manchitas.
Adrian G
Registered Veterinary Technician
Bilingual
Adrian has been working in the veterinary field for over 10 years and brings a wealth of knowledge and compassion to every patient he cares for. His deep love for animals extends to his own pack at home—four dogs (and counting!) named Foster, Penny, Ahsoka, and Montee. When he’s not at the hospital, Adrian enjoys hiking and exploring the outdoors, always finding new ways to connect with nature.
Minx D.
Veterinary Technician/ CT Technician
With over 20 years of experience in the veterinary field, Minx brings a wealth of knowledge and versatility to our team. His background includes working in emergency medicine, exotics, research, general practice, and surgery departments. Minx is known for his calm presence and dedication to patient care. Outside of work, he enjoys hiking and spending time with his family and two cats.