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(636) 530-1808

Dr. Doug's Radio

Listen to Dr. Doug on the radio!!!

Wednesdays on: 590AM The Fan at 4:10 p.m.

Our Staff

Douglas Pernikoff, DVM, MBA

Practice Owner

Dr. Douglas Pernikoff, affectionately referred to as “Dr. Doug”, is a 1975 honors graduate of the University of Missouri, College of Agriculture. Dr. Doug attended the University of Missouri Veterinary College and received his Doctor of Veterinary Medicine degree in 1981, with special honors awards including the Adrian J. Durant Avian Medicine Award, and elected membership into the Phi Zeta Veterinary Honors Society. After participating in a small animal internship at the Grand Avenue Veterinary Hospital in Santa Ana, California, he returned to St. Louis to participate in a residency program in Zoologic Veterinary Medicine at the St. Louis Zoo, in partnership with the University of Missouri Veterinary College. Dr. Doug followed with graduate studies in Anthropology at Washington University, St. Louis. He has worked in small animal medicine and surgery; emergency and laboratory animal medicine and research; in zoo medicine and as a worldwide conservation veterinarian through his role with the Wildlife Preservation Trust and the Jersey Wildlife Trust. He has lectured, published, taught and participated in field research around the world, with special interests in primates, elephants, tapirs and more. Dr Doug was a co-founder in the Center for Conservation Medicine, established at Tuft’s College of Veterinary Medicine. His special interests are many and diverse, but include painting and art collection; photography, herpetology, collecting natural history books, supporting young people in the sciences and non-kill animal rescue programs. He is the only state veterinarian certified as a rescue organization in the State of Missouri, having established the Vet-Pet Rescue Organization that functions through his established, Clarkson-Wilson Veterinary Clinic. He serves on the boards of the “Loosen the Leash” and the “Center for American Archaeology” organizations in his spare time. Dr. Doug also serves as the Consulting Veterinarian for the World Bird Sanctuary, caring for raptors, parrots, and many unusual exotic species. He is a patented inventor and published children’s author as well. Most importantly, Dr. Doug is a roadie for his kids’ singer-songwriter band.

Dr. Pam Von Behrens, DVM

Associate Veterinarian

Dr. Pam Von Behrens completed her undergraduate studies at the University of Illinois – Urbana, earning a Bachelor of Science degree in psychology in 1994. She then worked as a veterinary assistant for several years before attending the University of Illinois College of Veterinary Medicine. She earned several scholarships and awards, including cardiology student of the year. She became a member of the Phi Zeta Veterinary Honor Society and graduated with high honors in 2002. After graduation, Dr. Von Behrens practiced for several years in a northwest suburb of Chicago and then joined the staff at Clarkson –Wilson Veterinary Clinic in July of 2005. Her professional areas of interest include small animal internal medicine and oncology. Dr. Von Behrens is also an avid equestrian, having owned and shown hunter/jumper horses for close to 30 years. She currently lives in Wentzville, Missouri with her husband Eric, 3 cats, Huey, Kurt, and Penny, a horse,Paris, and their dog, Lyla.


Erica Immel, AAS                                   Rose Bradley

Practice Manager                                           Business Manager











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About Us
Clarkson-Wilson Veterinary Clinic is a full-service veterinary medical facility, located in Chesterfield, MO.