Meet True North's Associates

Here at True North Equine we strive to help your horse live a happy healthy life.  In order to accomplish this goal, we believe team work is the key.  We have several associates that help us achieve our goal.  Whether it is farrier work, dentistry, massage, energy work, and more!  True North and their associates work together on many cases.  Here are a few biography's on some of our team!

Marcia Rosenberger - Animal Communicator

A Certified Reiki Master and professional animal communicator,  Marcia is also trained in holistic natural horseman techniques to help develop a positive working relationship between horse and owner.  Communicating with animals since childhood, Marcia took time out to pursue degrees and work in Veterinary Technology, Molecular Biology, Technical and Science Communication, and a teaching certificate before returning to her first love, animal communication.

How animal communication helps

Despite our best efforts, sometimes the health and behavior of our horses leaves us confused and frustrated.  It seems like every step in equine training and care involves a million decisions that leave us wondering; did it work, is it worth it?  Animal communication can shorten this process by giving us feedback directly from the horse.  Better yet, communicating with your horse is the fastest way to improve your relationship.

How animal communication assists our veterinarians

Animal communication never replaces good veterinary care, rather it helps you find the pain.  Marcia tells you how the situation feels to your horse.  She will work with you or the vet and describe the specific nature of the problem.

For example, when you ask why my horse won’t eat, he could have pain in his teeth or stomach, smell something odd in his food, or be depressed. With this knowledge, you and your vet can decide which steps to take.

Marcia using animal communication and energy work to assist Dr. Ann-Marie Hancock as she makes osteopathic adjustments.

How to contact Marcia 

Text 540-270-7741       


Dr. Stacy Gravelle

Dr. Stacy Gravelle is the founder and owner of Four Seasons Equine Veterinary Service in Orange, VA. She always wanted to be a veterinarian and developed her passion for horses when she started riding at the age of 6. 

In her youth, she showed English and Western in local shows, 4-H shows, county fairs, A rated shows, and AQHA shows. During her undergraduate degree, she rode on her equestrian team and showed on the intercollegiate team.  While pursuing her veterinary degree, she rode at an eventing farm in Australia. 

Dr. Gravelle graduated from Siena College in 2007 with a Bachelors in Biology. Next she undertook a Masters program in Psychology and received her diploma in 2010 from the University of Phoenix.  In 2014, she graduated from the University of Sydney in Australia with a BVSc (equivalent to a DVM).  She attended the Chi Institute and became certified in veterinary acupuncture in 2016 and was certified in  spinal manipulation (chiropractic) in 2017.  She has a strong interest in holistic medicine and equine physical rehabilitation. 

She enjoys riding her horses, Kasper and Bobby, hiking, kayaking, traveling, and spending time with her  2 dogs, Stella and Lani, 4 cats, Duncan, Lucky, Mr. Chang, and Socks, and goat, Dougie.She s a member of the AAEP, AVMA, AATCVM,  AAVA, AHVMA, and the VAEP.

How to contact Dr. Gravelle

Four Seasons Equine Veterinary Service focuses on integrative medicine. We offer a wide variety of services, but focus on acupuncture, spinal manipulation, and Chinese herbal medicine. 

To learn more about us and our services please go to our website  You can always email or call to schedule an appointment: 

Email:      Phone number:   804-854-4884       Check us out on facebook !

Callie Heinle-Massage Therapist


Callie Heinle was born and raised in Ramona, California, where she acquired her love of horses at a young age due in part to her mother’s role as the in-house trainer at North Arabians. She grew up riding hunter/jumpers for much of her childhood, then transitioned to reining horses in her teen years. As an adult, Callie strives to further her horsemanship and knowledge of horses by studying under some of the top horsemen in the industry. She has had the opportunity to intern with Trevor Carter on his ranch in New Mexico, participating in colt starting and the schooling of reined cow horses and working ranch horses. She enjoys continuing to develop her own horses in English and Western disciplines.


In 2016, Callie attended equine massage school in Ocala, Florida at Animal Dynamics for Massage and Electro-Acupressure. She is a certified equine massage and electro-acupressure therapist and has been apprenticing in osteopathy since 2018. She is also the founder of Prancing Pony Equine Body Work and serves her clients along the east coast.


Callie’s other interests include: hiking, camping with friends and family, and traveling. She is an avid reader who enjoys collecting various horse and history books.

Adding a session with Callie would be a great way to remove the first layer of pain, inflammation, or immobility so that more can be addressed at your first osteopathy appointment or extend the time between osteopathic sessions.

Carin Brown- Certified Equine Thermographer

Carin is a life long Equine Enthusiast who has always had a passion for helping animals and riding horses. She has been teaching riding lessons since she since 2007, and riding before she could walk. As an H-B Pony Club Graduate she has ridden in a variety sports from Games to Eventing through her riding career. In 2008 Carin represented the United States on the International Games team that competed in Australia. Since then she has coached riders in games and general riding lessons. In recent years she has also become very involved in the Eventing community and was a working student for Skyeler Voss at the wonderful Morningside Training farm in the Plains VA. She has also worked as a working student for Cathy Fredrickson and Sharon Miller. Throughout College she rode with the Equestrian Team and competed in Hunter/Jumpers and ANRC competitions. Carin is currently competing in Eventing (Preliminary) and Dressage (3rd level).


She graduated from Bridgewater College in May of 2014 with a BS in Health and Exercise Science and a Minor in Equine Science. Following graduation Carin completed her training in Equine Thermography.  In November of 2014 she became a Certified Infrared Thermographer and started her own business, so she could pursue her passion for helping horses. 

How to contact Carin Brown

Picture Perfect Equine LLC 

To learn more about us and our services please go to our website .  You can always email or call to schedule an appointment: 

Email:     Phone number:   540-407-0089       Check us out on facebook !

20 A John Marshall St, Warrenton, VA 20186
Phone: 540.364.9111  Fax: 540.364.9211 | 9am-5pm Mon-Fri
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