Meet Our Doctors

We currently have eight veterinarians that work at our clinic and two relief veterinarians. Each veterinarian provides a unique and necessary contribution to our practice. Please take a moment to read about our doctors below.

Dr. Lisa Barfield, DVM - Owner/Staff

Dr. Barfield grew up in the San Francisco Bay area of California. After graduating from high school, she chose to attend Washington State University for undergraduate and graduate degrees in veterinary science. She graduated in 1998 with her Doctorate of Veterinary Medicine (DVM).

Dr. Barfield came to work for Winslow Animal Clinic right after graduation from WSU and has been here ever since. She likes to work with cats, dogs, pocket pets; such as hamsters, gerbils, rats, small mammals, poultry, pet goats and pet micro pigs.

Dr. Barfield resides on Bainbridge Island with her three children (Jacob, Eli and Katie), 2 cats, 1 dog and fish. In her family time, she likes to knit, swim and do craft projects.

Dr. Thomas B. Penn, DVM - (Semi-Retired) Relief Staff

Dr. Thomas Penn founded Winslow Animal Clinic in 1996. He graduated from Tufts University School of Veterinary Medicine after an undergraduate education at Pomona College in Claremont, CA. Dr. Penn grew up in California and moved to Bainbridge Island in 1989 after short stays in both Massachusetts and Oregon.

Dr. Penn is married to Kathleen and has two grown sons; Justin and Michael -- both graduates of Bainbridge High School and four grandchildren. The family also includes a young goldendoodle named Tilly and an orange tabby cat named Romeo.

Dr. Kenneth Zebrowski, DVM - Staff

Dr. Zebrowski attended Michigan State University and graduated in 1984 with a BS in biochemistry and then continued on to receive his doctorate in veterinary medicine in 1987.

Dr. Zebrowski relocated to Seattle in 1993 to enjoy all that the Pacific Northwest has to offer. After a varied practice experience; including working at a full service general practice, a population control practice and as a relief doctor in a general practice, Dr. Zebrowski joined Winslow Animal Clinic in 2000.

In his leisure time he enjoys hiking, bicycling, gardening and taking care of his many aquariums.

Dr. Christine Susumi, DVM - Staff

Dr. Susumi graduated from Washington State University with a BS in Biology in 1980. She received an MSE in Bioengineering from the University of Washington then returned to WSU to receive her DVM in 1987. She practiced in Seattle and Renton before arriving at the Winslow Animal Clinic. She became certified in veterinary acupuncture in 1998 and enjoys integrating acupuncture and herbs with conventional veterinary medicine. 

She moved to Bainbridge Island with her husband and miscellaneous dogs and a cat in 2003. In addition to work, she enjoys staying active with walking or classes at the gym, gardening, cooking and traveling.

Dr. Jessica Haggar, DVM - Staff

Dr. Haggar is a Bainbridge Island native. She left in 1992 to pursue an undergraduate degree in Biology from Montana State University. She obtained her doctorate of veterinary medicine from Ross University and Colorado State University in 2005. She now resides on Bainbridge Island with her husband, 2 children, 2 dogs and 2 cats. She currently has no other hobbies as she is very busy caring for her family.

Dr Jane O'Halloran DVM - Staff

Dr. O'Halloran graduated with honors from Washington State University College of Veterinary Medicine in 2001. She practiced in the Seattle area for 13 years before moving to Bainbridge Island. She joined Winslow Animal Clinic in 2015.

Dr. O'Halloran is married with two young children, a very large dog, 3 cats, chickens and fish. In her spare time, she and her family love to explore beautiful Bainbridge Island.

Dr. Akiko Westerhout, DVM - Relief doctor

Dr. Westerhout graduated from the University of California-Santa Barbara in 1991 and worked as a researcher in the biotechnology industry for a few years before going to veterinary school at Colorado State University. She completed an internship in emergency surgery and medicine at Angell Memorial Animal Hospital in Boston, MA before settling in the Pacific Northwest. She has two children in the Bainbridge Island School district, a ball-crazy border collie, a lovable Newfoundland, and a cat that rules the roost.

She carefully balances family life, emergency medicine in Seattle (ACCES), and general practice on Bainbridge Island (Winslow Animal Clinic). When not working, she loves outdoor activity of any kind; road and mountain biking, skiing, running, hiking and climbing.

Dr. Jaclyn Imai, DVM - Staff

Dr. Jackie is a 2007 graduate of Western University of Health Sciences in Pomona, Ca.  She has been practicing general medicine, ER, urgent care, and relief work for 12 years!  She is originally a California native, but moved to the beautiful pacific NW 4 years ago.    Dr. Jackie has 5 large furbabies- Whiskey Tango Sour, Hatchi, Medori Sour, Puma and Daisy Sour Cream, (all rescues) as well as little Quita (who lives in California with her brother) who was rescued from Iquitos, Peru during an AmazonCares volunteer goodwill trip. 

She loves dogs and cats but additionally holds a special place for Large Cats like Tigers, Snow Leopards and Cougars and even worked with them as an intern out of college at TCWR, a rescue sanctuary in Arkansas. 

Dr. Jackie loves to hike, fish,camp,and take advantage of all the stunning scenery in Northwest Washington.  She also is an avid reader, plays soccer, and does stained glass, mosaic, and quilting when she can find the time.  

Dr. Barbara Muhlbacher, DVM - Staff

Dr. Muhlbacher grew up in Switzerland and moved to the US after finishing high school. She graduated from Colorado State University with her Doctorate of Veterinary Medicine in 2001. After practicing in Lacey, WA for 3 years, Dr. Muhlbacher moved to the other Washington (DC), where she practiced for 15 years. She is very happy to be back in the Pacific Northwest with her husband Joe and mutt Cyrus. In her free time, Dr. Muhlbacher enjoys many outdoor activities, such as hiking, camping, biking, kayaking and skiing and also likes to travel and explore different cultures.

Dr. Amy McGee, DVM - Staff

Dr. McGee is a Massachusetts native who graduated from Colby College in Maine. She completed her veterinary degree at Western University of Health Sciences in Pomona, California.  She now lives on Bainbridge Island with her husband, two kids and Cavalier KCS named Pippin. Her veterinary care extends to dogs, cats and small mammal exotic pets. Dr. McGee and her family enjoy spending time at the many playground and beach parks on Bainbridge Island, as well as travel with extended family


We look forward to hearing from you


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Hours of Operation

Our Regular Schedule

7:30am-8:00am is for Drop-offs ONLY

6:00pm-8:00pm is for URGENT CARE ONLY!


7:30 am - 8:00 pm


7:30 am - 8:00 pm


7:30 am - 8:00 pm


7:30 am - 8:00 pm


7:30 am - 8:00 pm


8:00 am - 12:00 pm

New Year's Day:


Memorial Day:


Independence Day:


Labor Day:


Thanksgiving Day:


Christmas Eve (12/24):

8:00 am - 2:00 pm

Christmas Day (12/25):