dvmSuccess Vet Group

Our team consists of veterinarians who own, manage and operate veterinary practices and are members of the Veterinary Management Group (VMG). We have experienced both the rewards and challenges of owning and running veterinary practices. We share a common desire to provide high quality services and advocacy to independent veterinary practice owners to foster their success and help them navigate in a changing environment.

Our Achievements


Veterinary Practice Sales to Corporate Buyers


Years in Veterinary Practice Ownership and Management


Relationships with Veterinary Corporate Buyers

Contributing Team


Brian Barnett, DVM MBA

Brian is an Army Brat who was born in West Germany and speaks fluent Bavarian. Growing up, he was the beneficiary of plenty of flux and change throughout his formative years. Brian earned his B.S. in Zoology from Auburn University and continued his education there earning his Doctorate of Veterinary Medicine at the Auburn University College of Veterinary Medicine in 1994. While working as a full-time veterinary associate, he went on to obtain his MBA from the Wake Forest University School of Business in 2000.

Brian serves as the Staff Veterinarian for Trone Brand Energy in High Point, NC, a marketing company known nationally as a pet product marketing specialist. He currently owns two veterinary practices in North Carolina. He is also a member of Veterinary Management Group (VMG 21). He has experienced the full cycle of the veterinary industry, purchasing an existing multi-doctor practice, Randolph Animal Hospital in 2002, and starting a new practice, Biscoe Pet Hospital in 2016. He actively practices medicine and performs surgical procedures, to include complex orthopedics on a full- time basis. Therefore, he understands the challenges faced by veterinarians on a day-to-day basis in keeping their businesses thriving, relevant and profitable. He is also keenly aware of the demanding environment of the veterinarian’s plight in maintaining a strong client-base in the current veterinary industry.

Brian shares his life with his wife, Shea, a key partner in his business pursuits, his three children, Lucy Kate, Sullivan and Hayes, his three Terriers, Mr. Wilson, Betty and Reynolds and the family cat, Stella. Outside of his veterinary ventures, Brian enjoys weight lifting/fitness training, coin collecting, traveling, reading and any endeavor that involves the outdoors.  


Duffy Jones, DVM 

Dr. Duffy Jones is a native of the Atlanta area, and he grew up within walking distance of Peachtree Hills Animal Hospital. Dr. Jones is a graduate of Christ the King Elementary School and Marist High School. He attended the University of Notre Dame, and later Tufts University School of Veterinary Medicine (now renamed the Cummings School of Veterinary Medicine at Tufts University), from which he received his Doctorate of Veterinary Medicine in 1999. After that, Dr. Jones completed a one-year rotating internship in emergency medicine, internal medicine, and surgery at Georgia Veterinary Specialists. He then spent five years working at Bells Ferry Veterinary Hospital and South Cherokee Veterinary Hospital. In August of 2005, he opened Peachtree Hills Animal Hospital in Buckhead.

He is currently on the Board of the Georgia Veterinary Medical Association as well as having served as vice president, president, past president, and treasurer. He has recently become a WebMD Pet Health Community guest expert and has contributed to blog posts and podcasts forVictoria Stilwell's Positivelyweb site.

He is also an active member in the veterinary management group (VMG) and has written a book entitled “The Business Side of Veterinary Medicine”

Dr. Jones considers himself lucky to have married the girl next door, Courtney. They have been blessed with two energetic boys and one little girl. In his spare time, Dr. Jones likes to fly fish and play basketball and soccer. He is very involved in his church Our Lady of Assumption Catholic Church and is a varsity soccer coach at Marist School. 


Lucia Mokres, DVM

Lucia Mokres, DVM is a Biotechnology Entrepreneurial Consultant based in the San Francisco Bay Area. She specializes in enabling early stage companies with novel technology to gain traction and develop an investable technology and business model, and helping later stage companies work through scientific, market, regulatory, and clinical challenges. As a veterinarian, she also takes great interest in best practices for veterinary clinic management and in the evolving landscape of veterinary practice including new models of practice ownership and stakeholder engagement including veterinarians, clients, and corporations.

In her spare time, she instructs a Stanford Medical School elective, which provides training for medical students, nurses, physicians and other healthcare professionals in bedside manner, teamwork, leadership, and nonverbal communication skills using horses as a model for the doctor/patient-family-coworker relationship. Additionally, serves on the Association for Women in Science STEM to Market Advisory Board; is a member of the AWIS Palo Alto Mentoring Committee; and mentors other early stage companies through the Springboard Enterprises and California Life Sciences Institute advisory programs. 


Sarah Montgomery

Sarah has always had a passion for veterinary medicine. Her father, one of the owners of Evans East Animal Hospital in Denver, Colorado, led her to be very involved in the veterinary hospital from a young age. What she enjoyed the most has always been the interactions with various people and their pets. Whether it has been providing clients with optimal customer service or assisting staff members to reach their maximum potential, helping people has always been one of her passions. 
During her college years, Sarah pursued a degree in International Affairs with a focus on the Middle East. She was a student of Arabic and middle eastern culture. Understanding the conflicts and cultures of other regions has been instrumental in expanding her knowledge of human behavior and conflict resolution.
After graduation, she decided to go back to her roots in veterinary medicine and rejoined the Evans East team; by that time, it had grown to a hospital of 14 veterinarians and over 60 employees! 

Currently, Sarah is a Practice Manager with an emphasis on customer service and human resources. She has had the opportunity to speak at the University of Denver, Daniels School of Business, in their VMG leadership program, the GVMA in August on HR topics as well as a featured speaker with Zoetis on customer service. In 2018, Sarah passed her Professional Human Resource exam and obtained her PHR certificate. In 2020, Sarah’s next goal is to obtain her CVPM.  

In Sarah’s free time, she enjoys, hiking, skiing, horseback riding, shopping and spending time with her family, which consists of her husband and three dogs.


Ravi Tolwani, DVM PhD MSx

Ravi is passionate about developing veterinarians and empowering their success. He along with two other veterinarians started Seven Hills Veterinary Hospital next to Twin Peaks in San Francisco. He has been fortunate to be an active member of the Veterinary Management Group (VMG).  
In addition to helping facilitate the practice and team's success at Seven Hills he is a faculty member and an associate vice president of The Rockefeller University. Prior to The Rockefeller University he was on faculty at the Stanford University School of Medicine where he maintained a neuroscience laboratory and was involved in innovative programs in the life sciences and medical devices.
Ravi participated in a successful group sale of several veterinary hospitals across the country to corporate buyers. This group sale led to highly successful exit for several independent veterinary practice owners. 
He holds a D.V.M. from Auburn University College of Veterinary Medicine, a Ph.D. in molecular pathology from the University of Alabama at Birmingham and a M.Sx. in Management (Sloan Fellow) from the Stanford Graduate School of Business.


Dean Vicksman, DVM

Dean Vicksman is a Denver native and the owner of both Evans East Animal Hospital and Denver Cat Hospital. Having been in business for over 32 years, Evans East has grown from a one doctor practice to now house over 12 doctors in a brand-new state of the art facility where a great number of animals are welcomed through our doors.

Dean is an undergraduate of the University of Colorado and a graduate of Colorado State University Veterinary School. After graduation, Dean interned at the prestigious Angell Medical Center in Boston. He then returned home, to open his own veterinary care facility that exemplified his passion for animals and their welfare.

In addition to building a caring and professional practice, Dean serves on a wide array of Boards, demonstrating his commitment and passion to and for animals.
• Dumb Friends League – Board Chair; DFL is recognized nationally as a leader in animal welfare;
• PetAid Colorado – Board Chair – Providing subsidized veterinary services for the underserved population of Denver;
• Animal Assistance Foundation – Vice Chair – Providing Grants for Animal Welfare in Colorado;
• WINN Feline Foundation – Providing grants for feline research;
• The Grey Muzzel Organization – Advisory Board - Improves the lives of at-risk senior dogs.

Dean is also a local celebrity, appearing on the Pet Health Segment on ABC Channel 7 Denver for 15 years, and still going strong.

Having been married to his wife and best friend for over 32 years, Rebecca and Dean have two grown children, Koby a Chemical Engineer and Sarah, the Practice Manager at Evans East. The family loves the outdoors and takes full advantage of the Rocky Mountains, hiking in the summer and skiing in the winter. In addition, Dean is a 2nd Degree black belt from Peoples Kenpo Karate

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