Our Team

Dr. Mark Weber

Dr. Mark Weber

Dr. Mark Weber, senior co-owner of Newberg Veterinary Hospital, has practiced in Newberg for over 28 years. A 1987 graduate of OSU, he completed an internship at Cornell University before returning to Oregon. Professional interests include challenging surgical and medical cases as well as orthopedics including cruciate ligament repair. He also enjoys reproductive work. Golfing and wakeboarding our is sports of choice.

Dr. Greg Fischer

Dr. Greg Fischer

Dr. Greg Fischer, co-owner, has been with our practice for 23 years. He received his Doctorate in Veterinary Medicine from Oregon State University and Washington State University. Greg enjoys working with all animals but has a special fondness for the sporting breeds. He loves all aspects of veterinary medicine but has a special interest in soft tissue and orthopedic surgery. In his off-duty time, Greg enjoys spending time with his family and their menagerie of animals. He is also an avid outdoorsman and loves spending time in nature while always having his Labrador by his side.

Dr. Tina Johnson

Dr. Tina Johnson

Dr. Tina Johnson, a co-owner, has been with our practice for 17 years in June, working primarily with small animals. Tina received her Doctorate in Veterinary Medicine from Colorado State where she graduated with honors at the top 10% of her class. Tina concentrates most of her energy and time towards small animal medicine and surgery. Tina became a Certified Acupuncturist at her Alma Mater (Colorado State University) in 2006, and is spending more and more time practicing alternative and complimentary medicine. Acupuncture works with the animals own neurologic system to get results. Most of her acupuncture patients have some degree of arthritis and/or pain that acupuncture helps with. In her off-duty time, Tina enjoys gardening, being outdoors, and spending time with her husband and 2 children.

Dr. Erin Tripp

Dr. Erin Tripp

Dr. Erin Tripp has been with Newberg Vet since 2004 and is co-owner. She graduated from the University of Minnesota. Erin loves being a part of the Newberg community. She has a special interest in helping the local shelter and enjoys internal medicine and nutrition. In her free time, Erin enjoys road biking, and rafting with her family. At home she has 2 goats, 7 llamas, 1 cat, and 2 dogs.

Dr. Jaclyn Aschim

Dr. Jaclyn Aschim

Dr. Jaclyn Aschim, a co-owner, graduated from Oregon State University College of Veterinary Medicine in 2009. She focuses on small animal medicine and has a love for thoracic and renal disease. She was born and raised in Yamhill and now lives in Carlton. She is married to a local grass seed farmer and has one son, Harper. In her spare time, Jacki loves camping, gardening, cooking, and spending time with family.

Dr. Tyler O’Loughlin

Dr. Tyler O’Loughlin

Originally from Tigard, Dr. Tyler O’Loughlin joins Newberg Veterinary Hospital as a graduate of Oregon State University. A calm and reassuring veterinarian, he loves to partner with his clients so that together they can develop a plan for their pets. Dr. O'Loughlin's special veterinary interests include diagnostic imaging (ultrasound and radiology) and surgery, and when asked what he enjoys most about being a veterinarian, he states: “Being a resource and friend for owners who want to take better care of their beloved pets.” While Dr. O’Loughlin does not have any pets at the moment, he is hoping to get a Labrador retriever soon to welcome to his family. In his spare time, he likes cooking, traveling and scuba diving, and enjoys the sport of soccer, where he of course supports the Portland Timbers FC.

Dr. Katie Gonzales

Dr. Katie Gonzales

A native of Yamhill and a graduate of Oregon State University’s Carlson College of Veterinary Medicine, Dr. Gonzales joined us in June 2020. We're so excited to have a native daughter as part of our team of life-long animal lovers! Dr. Gonzales has always wanted to be a veterinarian. Her special interests include theriogenology, pocket pets, and soft tissue surgery. Her furry family consists of three Australian shepherds – Maddie, Mia, and Magnolia – and one cat, Kiko. In her free time, she enjoys hiking, gardening, and soccer (go, Timbers!), as well as participating in dog agility events with her three pooches.

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