Dr. Gene Harlan


Gene Harlan is the senior partner at Cotati Large Animal Hospital. He grew up in Fresno County on a dairy and beef farm where he first became interested in veterinary medicine.  After working for a local large animal veterinarian for a number of years, Gene attended U.C. Davis.  He graduated from veterinary school in 1973 and then went on to complete a yearlong internship in equine and bovine reproduction.


Gene helped establish the Preceptor Program which allows senior veterinary students to come to Cotati Large Animal and learn medicine in “real world” conditions.  He is also past president of the Cattleman’s Association, and has been a Sonoma County 4-H leader and Animal Health Advisor for the California Dept. of Food and Agriculture.  In addition, Gene also received the 2007 Sonoma County Horse Council’s Equus Hall of Fame Award for 33 years of service in Sonoma County.  Dr. Harlan is famous for his Equine Dentistry, and working with Lamintic horses.  He enjoys doing a mixed large animal pratice.  In his spare time he raises beef cattle and enjoys riding his horse and mule.

Dr. Calvin Dotti

Dr. Calvin Dotti was born and raised in Sonoma county where his family has operated a dairy for over 60 years. Calvin graduated from Analy high school and went on to complete his undergraduate studies and veterinary school at U.C. Davis.  Dr. Dotti has been at Cotati Large Animal for over 22 years. His interests include dairy herd work at both organic and conventional dairies, and small ruminant and camelid medicine.  Calvin lives in Rohnert Park and enjoys water skiing and relaxing with his wife and 2 children.

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Dr. Sally Venable


Dr. Venable is originally from Ventura, CA. She majored in Biology at Willamette University in Salem, OR and then went on to get her veterinary degree from Ross University. After graduation Dr. Venable went on to do a food animal internship at Oklahoma State. She has several mini shetland sheep of her own along with two dogs and three too many cats. She enjoys working on all large animal species but especially small ruminants and equine. 

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Dr. Jordan Bui


Dr. Bui grew up in Southern California. She began riding horses at an early age and was always an "animal nerd."  She earned both her undergraduate degree in Animal Science and her DVM from Colorado State University.  While she is excited to work on all large animal species, she especially enjoys working on horses and cows.  Her work at Cotati Large Animal brought her, her boyfriend, Mac, and her fluffy cat, Molly, to Sonoma County where they are excited to explore their new environs and become a part of the community.

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Dr. Emelie Roche


Dr. Roche was born in Sweden and raised in Petaluma, CA.  Her family has owned their ranch in Petaluma for about 100 years.  She began showing lambs for 4H in the fifth grade and continues to maintain a small herd of Dorset and Shropshire sheep on her ranch today.  She studied Animal Science at Cal Poly San Luis Obispo and earned her DVM from UC Davis.  She loves working on all large animals but especially enjoys working on sheep and goats.  In her free time, Emelie enjoys hiking and hanging out with her sassy cat, Luna.