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IVMI Faculty


Dr. Pasteur received her DVM from the University of Wisconsin in 1991. She went on to become certified as a CVA by the International Veterinary Acupuncture Society in 1997 and completed training at the International School of Equine Osteopathy. She is a certified veterinary spinal manipulation therapist by the Healing Oasis Wellness Center and is a member of the College of Animal Chiropractors. She started her advanced TCVM training at the Chi Institute in 2004 and has been a faculty member at the Chi Institute since 2005. In 2017, she received her Master's Degree of Science in TCVM from the Chi Institute. 

Combining her conventional equine practice with her study in integrative approaches, Dr. Pasteur has developed a unique philosophy and technique that generates exceptional results for her clinical clients. In 2011, Dr. Pasteur established the Pasteur Equine Learning Institute and began offering the Certified Veterinary Medical Manipulation Practitioner (CVMMP) course to veterinarians exclusively on how to combine conventional and alternative methods in treating horses (now at IVMI). In 2019, Dr. Pasteur developed and started offering the Certified Equine Rehab & Performance Medicine (CERPM) course at IVMI. Dr. Pasteur has lectured around the world on medical manipulation techniques and acupuncture in equine treatment. She is an assistant editor of the American Journal of Traditional Chinese Veterinary Medicine and a member of the International Society of Equine Locomotor Pathology.  


Marsha Severt, DVM, CVA, CVMMP
She attended North Carolina State University receiving her undergraduate degrees in Animal Science and Microbiology in 2005 and then her veterinary degree in 2009. During college, Dr. Marsha spent a semester living and working on a Thoroughbred racehorse farm in Lexington, KY. After graduating from veterinary school, Dr. Marsha spent a year at Texas A&M University as a large animal intern. There she gained further experience in large animal medicine and surgery. Following her internship, Dr. Marsha returned home to work in general equine practice and now solely provides integrative veterinary services to horses. Dr. Marsha has received certification in equine acupuncture from the Chi Institute and certification in spinal manipulation from the Integrative Veterinary Medical Institute. After completing her coursework, Dr. Marsha was invited to teach equine spinal manipulation for the Integrative Veterinary Medical Institute and does so every year.

  John Langlois, DVM, CVA, CVMMP
Dr. Langlois is a graduate of the University of Florida College of Veterinary Medicine in 1981. He has been an equine practitioner in Marion County, Florida for the past 32 years, where he established his own practice in 1983, with an emphasis on reproductive medicine, lameness diagnostics and surgery. He has received advanced training in veterinary acupuncture, Chinese veterinary herbal medicine and veterinary Tui-na massage. Dr. Langlois was a member of the PELI inaugural class in 2010, and served as an instructor there in 2011 and 2012. In 2013, PELI joined IVMI, and Dr. Langlois will continue to instruct the EVMM program through the IVMI. Chi Institute. He has been practicing for over 30 years and has been using Chinese medicine and spinal manipulation successfully for over 10 years enjoying treating at many of the prestigious thoroughbred farms in Marion County, FL.
  Karen Spracklen, DVM, CVA, AVCA

Dr. Spracklen is a graduate of the Purdue University School of Veterinary Medicine.  She completed her Veterinary Chiropractic training in 1996 and is certified through the American Veterinary Chiropractic Association (AVCA).  She is certified in Veterinary Acupuncture through the Chi Institute since 1999, and has also received training in Osteopathy.  In addition to her practice, Dr. Spracklen devotes her time serving as an instructor for the Chi Institute located in Reddick, Florida and the Chi Institute - Europe located in Spain.

Dr. Spracklen is a national and international speaker on Complementary and Alternative Veterinary Medicine and TCVM.  She has been published in the American Journal of Traditional Chinese Veterinary Medicine (AJTCVM) and is the author of several chapters in veterinary acupuncture textbooks.  She is currently serving as the Assistant Editor of the American Journal of Traditional Chinese Veterinary Medicine.


  David Hirsch, DVM, CVA, CVCH, AVCA, MSTCVM
Dr. Hirsch graduated from Michigan State University College of Veterinary Medicine in 1983. He was certified by the American Chiropractic Veterinary Association in 2001, and was certified by the Chi Institute in Veterinary Acupuncture in 2002 and Herbal Medicine in 2007. He was certified by the American Chiropractic Veterinary Association in 2001, and was certified by the Chi Institute in Veterinary Acupuncture in 2002 and Herbal Medicine in 2007. He has also earned his Master's Degree in TCVM from the Chi Institute. He is the co-owner and co-director of Parkway Veterinary Hospitals in Cape May Courthouse and Marmora, New Jersey. Dr. Hirsch is a member of the Board of Trustees for the Atlantic Coast Veterinary Conference and a past board member for the Marine Mammal Stranding Center of New Jersey.

Alice Baker Meuten, DVM, CVA, CCRT, CVTP
Dr. Alice graduated from North Carolina State University in 2007.  She focused on large animal studies throughout veterinary school and practiced in large animal medicine for several years, but after getting started in competitive herding with her own dogs, she developed a passion for canine sports medicine and rehabilitation.  Dr. Alice went to Parker University of Chiropractic and is certified by the American Veterinary Chiropractic Association.  She also is a Certified Veterinary Acupuncturist through the Chi Institute and is currently working toward her Master's in Traditional Chinese Veterinary Medicine.  Dr. Alice is also a Certified Canine Rehabilitation Therapist through the Canine Rehabilitation Institute and is a Teaching Assistant for the Introduction and Sports Medicine courses.  She is also working on a Practice Experience Residency in Sports Medicine and Rehabilitation through Colorado State University.  Dr. Alice's practice in Northern Colorado is focused on the Canine Athlete where she works on many top agility, field trial retrievers, fly ball, conformation, obedience, herding, and other sporting dogs.  In her spare time she trains and competes her Border Collies and Australian Kelpie in herding trials.


Holly Landes, DVM, CVA, CVFT, VMRT
Dr. Holly Landes is a 2005 graduate of Louisiana State University School of Veterinary Medicine. She served four years in the United States Army Veterinary Corps and completed a 15-month tour in Iraq in support of Operation Iraqi Freedom. She attended the Options for Animals College of Veterinary Chiropractic in 2012 and achieved certification in Veterinary Chiropractic by the International Veterinary Chiropractic Association. She followed with a certification in mixed-animal acupuncture at the Chi Institute in 2013, and obtained certification in TCVM Food Therapy in 2014. She continues to work on her Masters Degree in TCVM at the Chi Institute.  In 2015, she complemented her training with a certification in Veterinary Massage and Rehabilitation at the Healing Oasis Wellness Center.  She is the owner of Eastview Animal Wellness in Augusta, Georgia and focuses on TCVM, spinal manipulation, and physical rehabilitation.

  Janice Huntingford, DVM, DACVSMR, CVA, CVPP, CCRT, CAVCA

Dr. Janice Huntingford is a 1984 graduate of the Ontario Veterinary College, University of Guelph, in Guelph, Ontario and a Board Certified Specialist (Diplomate) in Canine Rehabilitation and Sports Medicine (DACVSMR).  She is certified in Animal Chiropractic by the American Veterinary Chiropractic Association (AVCA), in Animal Acupuncture by the International Veterinary Acupuncture Society, in Chinese herbal Medicine (Chi Institute) and is a Certified Veterinary Pain Practitioner.  In 2007, Dr. Huntingford opened Ontario’s first salt water canine therapy pool and canine rehabilitation centre. Dr. Huntingford lectures nationally and internationally on rehabilitation, acupuncture, geriatric medicine, herbals and pain management to veterinarians and veterinary technicians. She has authored or co-authored several text book chapters on Rehabilitation and published a number of peer reviewed manuscripts. She consults and sits on a number of advisor boards related to herbal medicine, laser therapy and holistic medicine. She teaches regularly at Cornell University and is involved in Resident Training for Canine Sports Medicine and Rehabilitation for Cornell University, College of Veterinary Medicine. Dr. Huntingford continues to research into the treatment of animal pain. She has published a peer review paper on laser therapy for elbow arthritis and has completed a clinical trial on a unique kidney preparation for aging cats.


Dr. Ronald Koh received his veterinary degree in Taiwan in 2006 and later completed a specialty internship followed by a master’s program in acupuncture at the University of Florida College of Veterinary Medicine. Prior to joining UC Davis School of Veterinary Medicine in 2020, he spent 6.5 years on the faculty of the Louisiana State University School of Veterinary Medicine, where he served as an assistant professor (2015-2020) and a service chief of Integrative Medicine and Rehabilitation Service. He is certified in acupuncture, rehabilitation, herbal therapy, and medical manipulation. He completed his residency in Veterinary Sports Medicine and Rehabilitation in 2019. His research and clinical focus have been on integrative and rehabilitative medicine therapies for pain management, orthopedic impairments, neurological deficits, geriatric conditions, and palliative/hospice care. His focus within TCVM is using traditional, scalp, and topographic acupuncture, along with herbal medicine for neurological conditions. He lectures on TCVM, integrative medicine, and rehabilitation for veterinary schools, conferences, and general public events. In spare time, he enjoys spending time with family, hiking, and travelling places.

  Han-Wen Cheng, DVM, MS, CVA
Dr. Cheng practices in New Taipei city, Taiwan. He received his Doctor of Veterinary Medicine degree from National Chia Yi University in 1979. Dr. Cheng has attended numerous TCVM training events and conferences. His most recent TCVM training was the TCVM Annual Conference hosted by the Chinese Veterinary Medical Association, the China National Society of TCVM and the Chi Institute in 2012. Dr. Cheng is not only the President of The Chinese Society of Traditional Veterinary Science, but he is also the Vice Chairman of the Fourth Members Conference of Asian Society of Traditional Veterinary Medicine. Beginning in 1990, Dr. Cheng has been invited to speak by different veterinary medical associations, including the International Veterinary Acupuncture Society, the Chinese Society of Traditional Veterinary Science, the Chi Institute and various universities. Dr. Cheng has received several awards including Taiwan Outstanding Veterinarian Award by National Veterinary Festival in 1999 and was recognized as one of the Top Ten International TCVM Practitioners by Global Sun Samiao Medicine research Institute in 2012.  Dr. Cheng is the owner, veterinarian, and director of Sino Union Animal Hospital. He is also the director of Chi Institute Taiwan.
  Margaret Sleeper, VMD, DAVCIM, CVA

Meg Sleeper VMD graduated from the University of Pennsylvania veterinary school cum laude in 1993. After completing a rotating internship in medicine and surgery at Mid-Atlantic Equine Medical Center, she returned to the University of Pennsylvania for a residency in cardiology. Since completing her residency in 1997 and becoming board certified, she has worked in the section of cardiology at Penn with the exception of 1 year in private practice. She is an associate professor of cardiology and was section chief from 2001 through 2011. Primary research interests include inherited heart diseases, in particular inherited cardiomyopathies and therapeutic gene transfer. Dr. Meg Sleeper has published numerous papers including over 70 peer reviewed original papers, over 50 review papers or case reports, and 4 books. In addition to lecturing at conferences including the American Heart Association, the American College of Veterinary Internal Medicine Forum, the Keystone Veterinary Conference, the World Feline conference and the American Veterinary Medical Association (AVMA), she has been the coordinator for the small animal cardiology section at the AVMA conference since 2009. She has trained 18 veterinary cardiologists through their residency programs at the University of Pennsylvania Veterinary School. In 2015 she joined the faculty at the University of Florida veterinary school.


Anna Firshman, BVSc, PhD, Diplomate ACVIM, Diplomate ACVSMR

Dr. Anna Firshman is an associate clinical professor and specialist in large animal internal medicine at the College of Veterinary Medicine. She received her veterinary degree from Liverpool University, England in 1999 and became a Diplomate of the American College of Veterinary Internal Medicine in 2003. She obtained her PhD from the University of Minnesota in 2005 and then joined the faculty at Oregon State University College of Veterinary Medicine. She joined the faculty at the University of Minnesota in 2009 and became a Diplomate of the American College of Veterinary Sports Medicine and Rehabilitation in 2010. Dr. Firshman has a special interest in equine exercise physiology, conditioning and rehabilitation therapy and received her certificate in equine rehabilitation from the University of Tennessee. 


Ronald Riegel, DVM
Dr. Ron Riegel earned his undergraduate degree in Chemistry from the University of Delaware and his doctoral degree in Veterinary Medicine from the University of Illinois. He served as a clinical instructor with the Ohio State University and is a member of the Academy of Human Neuromuscular Physiology. Dr. Riegel operated a multi-doctor private veterinary practice in Ohio for more than two decades. He founded and later sold Premier Equine Health Products, a company which manufactured and distributed products for equine athletes globally. Dr. Riegel has worked with therapeutic lasers since 1979. His background in laser technology encompasses human, companion animal, and equine disciplines. He has spent the last two decades lecturing nationally and internationally to human and veterinary healthcare professionals and is cofounder of the American Institute for Medical Laser Applications (AIMLA). Dr. Riegel has been a member of the American Society for Lasers in Medicine and Surgery since 2011, serves on the leadership of The Optical Society Photobiomodulation Technical group, and is a member of the North American Association of Photobiomodulation Therapy (NAALT), the World Association of Light Therapy, and the American Academy of Thermology. Dr. Riegel has authored or co-authored more than a dozen papers and books about laser therapy.

  Judy Downer, PhD
Dr. Downer earned her undergraduate in Animal  Sciences from Rutgers University, her MS from University of Kentuky and her PhD from the University of Deleware. She has experience as Director of Clinical Development at Nutramax Laboratories and Manager of Clinical Development at Fort Dodge Laboratories. She has 18 years of pharmaceutical and nutritional research. She is an active competitor, trainer and coach in the dressage discipline. She is currently a faculty member at the College of Central Florida. She is passionate about equine education, focusing on exercise physiology and nutrition.  She also teaches business skills for the equine industry.

  Dr. Ching Ming Liu, BVM, MVM, PhD, CCRP
Dr. Liu received his BVM in 1989, his MVM in 1991 and his Phd in in 2015 all from the National Taiwan University in Taipei, Taiwan where he also served as the Chief Veterinarian of Surgical Section. Dr. Liu has been certified through the Chi Institute in veterinary acupuncture, Chinese veterinary herbal medicine, veterinary Tui-na, and Veterinary Food Therapy. He received his Certified Canine Rehabilitation Practitioner (CCRP) from the University of Tennessee. He has over 10 years of teaching experience, is a board member of the Chinese Society of Traditional Veterinary Science (Taiwan) and has been published in various scientific journals.
  Stacie Atria DVM, CVA, CCRT
Dr. Atria earned her Bachelor's degree in music and biology from the University of Miami and her DVM from the University of Florida College of Veterinary Medicine in 2008. Dr. Atria completed the Mixed Animal Acupuncture course at the Chi Institute in December 2006 and was granted certification from the Chi Institute and China's National Society of TCVM. She has completed both the Equine and Small Animal Advanced TCVM courses, as well as the Food Therapy course and all five TCVM Veterinary Herbal modules at the Chi Institute. Dr. Atria recently completed a one-year clinical internship in acupuncture at the University of Florida Veterinary Medical Center under the direction of Dr. Xie. At UF, Dr. Atria did clinical research investigating the use of acupuncture and herbal therapies for the treatment of anhydrosis and recurrent airway obstructive diseases in horses.

Caitlin Daly DVM, CVMMP
Dr. Caitlin Daly has been involved with horses since she was a young child. Her experience with various breeds and riding disciplines has supplemented her understanding of each horse’s specific needs. By taking the time to develop a special relationship with her clients and their horses, she is a fundamental part of the team that keeps horses healthy and performing to the best of their ability. After graduating from Miami University in 2007, Dr. Daly worked as a technician at Hagyard Equine Medical Institute in Lexington, Kentucky. In 2011, Dr. Daly received her Doctorate of Veterinary Medicine from The Ohio State University College of Veterinary Medicine and was recognized with the Excellence in Equine Ambulatory Award. Prior to moving to Maine, she completed an internship at Wilhite and Frees Equine Hospital outside of Kansas City, Missouri. In 2018, Dr. Daly became certified in Veterinary Medical Manipulation. She is member of the American Veterinary Medical Association, American Association of Equine Practitioners and the Maine Veterinary Medical Association. Dr. Daly is also a member of the Decade One business management group for equine practitioners.