Integrative Veterinary Services of Missouri (IVSMO) is a clinical service dedicated to helping animals use their body’s own innate ability to heal and optimize health. Services are provided by Dr. Gary J. Nie. Focusing on the 5 Key Ingredients for Optimal Health, Dr. Nie integrates Complementary and Alternative Veterinary Medical (CAVM) care with conventional veterinary medicine for horses, dogs, cats and other animals. IVSMO is a service of Angel Animal Hospital, LLC.