Dr. Tim Van Geem graduated from Kansas State Veterinary College in 1987. Dr. Van Geem has a Master of Science in Biology and PhD in veterinary/medical entomology but he became frustrated with research and followed his dreams, returning to veterinary school. After graduation, he completed an internship in surgery in Las Vegas.
Dr. Van Geem practiced in the San Francisco area for six years, dividing his time between general practice and critical care. During that period, he developed a special interest in dentistry and surgery. He purchased Mother Lode Veterinary Hospital in 1994, and for the next five years he also provided referral dentistry services for Loomis Basin Veterinary Hospital, splitting his time between the two facilities. He has been a member of the American Veterinary Dental Society since 1994 and continues to provide advanced veterinary dentistry for pets.
He enjoys cycling and scuba diving and has spent many years developing his interest in sculpture. Dr. Van Geem’s wife, Erin, is the co-owner and practice manager of Mother Lode Veterinary Hospital. They have three sons: Josh, is currently a veterinary student at UC Davis; his twin brother Brody just completed a degree in economics at Oregon State University; and the youngest son, Cavan, is an anthropology major at the University of Nevada, Reno.
Dr. Mario Dinucci studied biology at Cal Poly San Luis Obispo and graduated from UC Davis School of Medicine in 2007. After graduation, he spent four years practicing equine medicine in Nevada County, and made a career change to small animal medicine and surgery in the spring of 2011. His professional interests include dentistry, soft tissue and orthopedic surgery, ophthalmology, and ultrasonography.
Dr. Mario enjoys fly fishing, photography, camping, backpacking the Sierras, and spending time with his family.
Molly Dinucci, DVM
Dr. Molly Dinucci completed her undergraduate degree in Animal Science at Cal Poly, San Luis Obispo in 2002 and went on to receive her doctorate degree from the University of California, Davis in 2007. After graduating from veterinary school, she completed a year-long internship in equine medicine at Loomis Basin Equine Medical Center in Loomis, CA. She stayed on at Loomis Basin as an associate veterinarian in equine ambulatory practice for two and a half years. Although she enjoyed equine practice, she decided to make a career change to small animal practice in the fall of 2010, after the birth of her son, Zachary. Dr. Molly practiced small animal medicine and surgery in Auburn for two years before joining Mother Lode Veterinary Hospital.
Dr. Molly is a lover of the outdoors and enjoys running, hiking, skiing/snowboarding, camping, and backpacking. She and her husband, Mario, have four children; Zachary, Greyson, Harper, and Hudson.
Dr. Molly’s professional interests include preventative and internal medicine, geriatric medicine, ultrasound, and soft tissue surgery.
Dr. Cameron Thompson studied Microbiology at Cal Poly San Luis Obispo, earning his Bachelor’s degree in 2008. He then pursued his veterinary degree at UC Davis, graduating in 2012. During the next three years, he practiced mixed large animal veterinary medicine in the north bay area. With the arrival of his newborn daughter in late 2014, he decided to travel closer to family in the foothills, and joined the team at Mother Lode Veterinary Hospital in April 2015. His professional interests include orthopedic and soft tissue surgery, dentistry, ophthalamology, and advanced imaging.
In is free time, Dr. Cameron enjoys horse training, scuba diving and flying small engine airplanes, along with spending time with his wife Gina and childen, Aubrey, Karly, and Wesley.
Dr. Andrea Bledsoe (aka Dr. Dre) grew up in Nevada City, went on to get her Bachelor of Science degree in Biology from Sonoma State University, and then graduated from UC Davis School of Veterinary Medicine in 2017. She completed a year-long internship at Steinbeck County Equine Clinic, and then after moving to Auburn, joined the wonderful team at Mother Lode Veterinary Hospital. Her professional interests include wellness, surgery, ophthalmology, and internal medicine.
Paola Wessinger, DVM
Dr. Paola Wessinger studied Animal Science at Cal Poly San Luis Obispo, earning a bachelor’s degree in 2010. She then moved to Scotland, UK to pursue her degree in veterinary medicine at the University of Glasgow. After returning to the United States, she completed an internship in equine medicine at Montana Equine. Paola then spent an additional three years practicing equine medicine. After returning to California to be closer to family, she joined the team at Mother Lode Veterinary Hospital and is excited to expand her knowledge in small animal medicine. Dr. Wessinger is also certified in Veterinary Medical Acupuncture and Animal Chiropractic for both large and small animals and is eager to bring her expertise in this area to the practice.
In her spare time Dr. Wessinger enjoys being outdoors, boating, hiking and camping. She also spends her time caring for her two dachshund puppies, Schatzi and Schnitzel
Dr. Cori Mulliken earned her degree in Biology at the University of California, Santa Cruz. She attended UC Davis for veterinary school where she graduated as a combination of a large and small animal veterinarian. She worked as a mixed animal practitioner for several years, transitioning to small animal medicine in 2009. Dr. Cori joined Mother Lode Veterinary Hospital at the end of the 2020. Her professional interests include ophthalmology, soft tissue surgery, and abdominal ultrasound. Dr. Cori enjoys woodworking, swimming, and spending time outdoors exploring with her two boys and husband.
Natalie Sundstrom, VMD
Dr. Natalie Sundstrom grew up in New Jersey, and completed a Bachelors of Science in Biology and Chemistry at The College of New Jersey. Her love of animals led her to veterinary school, attending the University of Pennsylvania School of Veterinary Medicine. She graduated in 2012 with a focus on equine medicine and surgery. Dr. Natalie completed an internship at Rhinebeck Equine in upstate New York, and then moved to California in 2013, where she began to work in mixed animal practice. She completed her training in equine acupuncture at the Chi Institute in 2014. Dr. Natalie continues to work part time on horses and other large animals, and is excited to join Mother Lode Veterinary Hospital. Her interests include surgery, wellness, palliative and end of life care.
In her spare time, Dr. Natalie enjoys spending time outdoors with her husband, Rex, and two children, Forest and Orion. She has completed the Tevis Cup twice and hopes to continue competing with her new horse in endurance.
Board Certified Surgery Team
Justin Uhl, DVM, MS, DACVS-SA graduated with a bachelor’s degree from the University of California, Davis in 2002. He went on to complete a Master’s Degree in comparative pathology with emphasis in bone biomechanics in 2008 and completed his Doctor of Veterinary Medicine Degree in 2010.
After graduating from veterinary school, Dr. Uhl pursued a rotating internship followed by a surgery residency at the University of Minnesota. During his residency he served for 2 years as chief resident and sat on the medical review board at the hospital. He finished his residency in July of 2014 and worked in private practice in Sacramento before starting Summit Veterinary Surgery Service in May of 2018. Dr. Uhl is trained in orthopedic, neurologic, soft tissue, and minimally invasive procedures.
Dr. Uhl has multiple publications in bone plate research, bladder stone trends, temporal lobe epilepsy, and osteosarcoma chemotherapy. He has also done research in the areas of interlocking nails and cranial cruciate ligament disease. He has spoken at many continuing education events around the world and is a reviewer for the Veterinary Surgery journal and the Journal of the American Animal Hospital Association. He sits on the ACVS continuing education committee. He is a member of the Veterinary Orthopedic Society and Veterinary Society of Surgical Oncology.
When not in the hospital Dr. Uhl enjoys spending time with his wife Tracy and daughters Haley and Madison. He also enjoys spending time running, biking, and swimming and has 1 dog at home.
Katja Lin, DVM, DACVS-SA
Dr. Katja Lin, DVM, DACVS-SA recently joined Summit Veterinary Surgery Service in the spring of 2020 to work alongside her good friend and resident mate, owner Dr. Justin Uhl. She has a diverse background and brings with her a variety of experience. She grew up in both New York and Minnesota and as an adult had lived in Northern California and Southern Nevada. She is just as comfortable in an urban jungle as she is on a solitary hike.
Dr Lin graduated from the University of Minnesota College of Veterinary Medicine in 2006. She went on to complete a Small Animal Rotating Internship at the same institution. She originally aspired of going into Emergency and Critical Care. However, a year in private practice at the Minnetonka Animal Hospital helped her realize that she could be her best doctor in the operating room which was the perfect blend of medicine and problem solving.
In 2008 Dr. Lin was taken on as an Orthopedic Research Fellow at the Orthopedic Research Lab at the University of Minnesota where she started two prospective research projects. One was on the effect of non-surgical management on dogs with cranial cruciate ligament rupture and the other on MRI imaging of cartilage in dogs with elbow dysplasia. Both studies led to multiple presentations at national conferences and have been published in peer reviewed journals.
In 2009 Dr. Lin was accepted into Small Animal Surgical Residency Program at the University of Minnesota, which was complete in 2012. Following her residency, Dr. Lin started the surgical department at Valley Oak Veterinary Center, a large general and specialty practice in Chico, CA. For three years she grew the practice into a successful business while enjoying the down-to-earth lifestyle of northern California. She then joined a multi-specialty practice in Las Vegas, Nevada, focusing on all three disciplines of surgery: orthopedic, soft tissue and neurology. During the four years spent in Las Vegas Dr. Lin spent a portion of each week doing mobile surgeries at dozens of practices around the Las Vegas valley. Through this experience she learned to appreciate the challenges and nuances of mobile practice and is the reason she feels Summit Veterinary Surgery Service is a good fit for her.
Dr. Lin has a deep passion for canine musculoskeletal health. Allowing a dog to be the best and most active version of themselves is her goal for every patient. With the rapid advancements in canine orthopedics, she has committed herself to the field by staying involved though the Veterinary Orthopedic Society where she has been serving in some capacity on the board for four years. She also serves to further advance the field by being an active member on the Continuing Education Committee for the American College of Veterinary Surgeons and most recently entering a faculty track for AO North American, a prestigious organization committed to raising the bar in teaching orthopedic surgery.
Dr. Lin still lives in a small village outside of Las Vegas where she enjoys the desert lifestyle, spending as much time outside climbing, trail running, mountain biking and hiking with her dog Rokee.
Dr. Lin’s publications below:
Short-term and long-term outcomes for overweight dogs with cranial cruciate ligament rupture treated surgically or nonsurgically. Wucherer KL, Conzemius MG, Evans R, Wilke VL.
J Am Vet Med Assoc. 2013 May 15;242(10):1364-72
The use of delayed gadolinium enhanced magnetic resonance imaging of cartilage and T2 mapping to evaluate articular cartilage in the normal canine elbow.
Wucherer KL, Ober CP, Conzemius MG.
Vet Radiol Ultrasound. 2012 Jan-Feb;53(1):57-63
Board Certified Internal Medicine
Christina Bradbury, DVM, MS, DACVIM
Growing up on the coast in beautiful Northern California, Dr. Bradbury’s love for nature and animals started early in her childhood. Following this love, she pursued an undergraduate degree at UC Davis in Wildlife, Fish and Conservation Biology and went on to obtain a Doctorate of Veterinary Medicine from UC Davis in 2006. After an internship at Texas A&M University, she continued her veterinary training at Colorado State University, completing a combined residency and Master’s of Science program. In 2010, she was board-certified in Small Animal Internal Medicine, becoming a Diplomate of the American College of Veterinary Internal Medicine (ACVIM).
After her residency, Dr. Bradbury returned to Northern California and settled in the Sierra Foothills. She worked in private practice in the Sacramento area for over a decade, and started her mobile practice, Sierra Mobile Veterinary Specialists, in 2020. She now travels throughout the Central Valley, Sierra Foothills and Tahoe region, providing minimally invasive procedures such as endoscopy, rhinoscopy, cystoscopy, bronchoscopy, laparoscopic liver biopsies, and ultrasound to veterinarians and their patients.
In her free time, Dr. Bradbury enjoys adventuring outdoors and spending time with her husband and all of their animals – two very rambunctious Labradors, a very sweet (but neurotic) German Shepherd, three cats and a rescued Thoroughbred.
Board Certified Cardiologist
Dr. Brian MacKie, DVM, DACVIM
Dr. Mackie received his Doctor of Veterinary Medicine degree from Washington State University in 2005. Following graduation, he completed a one-year rotating internship in small animal medicine and surgery at VCA Sacramento Animal Medical Group in Sacramento, California. After his internship, he moved to the University of Wisconsin-Madison to complete his residency training in Cardiology from 2006-2009. During his time there, Dr. MacKie helped implement the use of the Amplatz Canine Ductal Occluder for non-invasive treatment of a congenital heart disease, authored a paper on the use of an implantable ECG monitor for the evaluation of fainting in dogs, and assisted in prospective research on pulmonary hypertension and cardiac biomarkers.
His clinical interests include, but are not limited to clinical cardiology such as echocardiography and electrocardiography (ECG), pulmonary hypertension in dogs, syncope (fainting) associated with heart disease and arrhythmias, congenital heart disease, arrhythmias, and congestive heart failure (CHF). His goal in therapy for your pets is to maintain an exceptional quality of life for his patients with heart disease.