Meet the Team

Dr. Windsor began his undergraduate career at the University of Texas at Austin before transferring to Texas A&M University to complete his pre-veterinary studies. He earned his bachelor’s degree in biomedical science, with honors, from Texas A&M in 1992. Although proud of his Aggie degree, he admits his blood still runs a little burnt orange.

He received his Doctor of Veterinary Medicine degree from Michigan State University College of Veterinary Medicine in 1997. The following year, he completed a rotating internship in small-animal medicine and surgery at Washington State University.

After returning to Michigan, Dr. Windsor worked as a relief veterinarian in emergency and general medicine at veterinary hospitals throughout Metro Detroit. He joined Beverly Hills Veterinary Associates in 2000 and purchased the hospital in 2013.

Dr. Windsor’s professional interests include minimally invasive laparoscopic surgery, diagnostic ultrasound, and dentistry. He earned a Certificate of Proficiency after completing the 100-hour Small Animal Soft Tissue Ultrasound Immersion Program through WAVE Veterinary Ultrasound Training. In 2021, he also earned a Certificate of Accomplishment as a Veterinary Dental Practitioner from the International Veterinary Dentistry Institute, recognizing his advanced practical knowledge and surgical skills in general-practice veterinary dentistry.

Committed to lifelong learning, Dr. Windsor completes between 50 and 100 hours of continuing education each year. He is a member of the American Veterinary Medical Association, Michigan Veterinary Medical Association, and American Animal Hospital Association. He is also a past president of the Southeastern Michigan Veterinary Medical Association.

Outside the hospital, Dr. Windsor enjoys mountain biking, golf, and cooking. He and his wife, Sondra, have a daughter, Mallory, and a son, Matthew. Their family also includes two dogs—Josephine, a small wire-haired terrier, and Doug, a knuckle-headed golden retriever.

“I have been fortunate to call Beverly Hills Veterinary Associates home for most of my veterinary career. Our practice has grown through referrals from friends and families like you—a testament to the passionate, hardworking team we have assembled.

“Providing this level of care takes a team of people with years of training, experience, and dedication. We take your pets’ health very seriously, and we are honored that you have entrusted them to our care. From all of us at Beverly Hills Veterinary Associates, thank you for choosing us.”

After growing up in Troy, Michigan, Jen Brown attended Lake Superior State University, obtaining a bachelor’s degree in biology and chemistry in 1993. At Oklahoma State University, she received honors in soft tissue surgery, graduating with a Doctorate of Veterinary Medicine in 1997. In Dallas, Texas, she worked as a mixed animal practitioner (equine, exotics, and zoo animal medicine and surgery) at a general practice, interned at Animal Emergency Hospital in Dallas, and was part of veterinary teams at Dallas World Aquarium, Dallas Zoo, Oklahoma City Zoo, and Arbuckle Wilderness, where she worked with large cats (lions, tigers, cougars, and wildcats).

Dr. Brown returned to Michigan in 2001, working for various clinics in St. Clair Shores, Shelby Township, Lake Orion, and Clarkston. Working as a relief veterinarian allowed her the flexibility to spend time with her two sons, Emerson and Peyton, and her English setters, Mary and Timber, while working at emergency clinics in Flint and Clinton Township.

She has been a member of the AVMA, AAZWV, and AAFP while obtaining 50 hours of continuing education per year. Professional interests include cardiology, soft tissue surgery, emergency medicine (trauma) and critical care, and reptile and avian medicine, as well as senior care with emphasis on pain control.

When not at work, Dr. Brown can be found on the ice playing hockey. Being an avid Red Wings fan is only the beginning of her hockey obsession—this year, she plays for Senior Women’s Honeybaked AAA team.

“Beverly Hills Veterinary Associates has been the perfect place to allow me to emphasize the role owners have in the care of their pets. The talented technicians, animal care assistants, receptionists, and veterinarians at Beverly Hills Veterinary Associates, along with great clients, energize me every day. Knowing we are a team that includes owners in the preventive care measures for their pets, and can offer high-quality medical and surgical care, makes this hospital special.”

Hello! I'm Dr. Ann Callahan, a dedicated veterinarian committed to the health and welfare of animals. I began my academic journey at Michigan State University, where I completed my undergraduate studies with a focus on packaging engineering. Inspired by MSU's strong veterinary program and supportive community, I continued my education at Michigan State University College of Veterinary Medicine, graduating with honors in 1997 with fellow classmate, Dr. Kevin Windsor.  

Following graduation, I pursued a prestigious post-graduate internship at the University of Missouri - Columbia. This intensive program provided me with invaluable experience and expertise in small animal medicine and surgery.

Throughout my 25 + year career, I've been privileged to work in multiple communities with a variety of different pets and people. These experiences have shaped my approach to veterinary medicine, emphasizing compassionate care, advanced diagnostics, and personalized treatment plans tailored to each patient's unique needs.

Beyond clinical practice, I have a busy personal life with travel, cooking, reading and outdoor activities like golf, skiing, hiking and spending time with my family and friends. I am committed to staying abreast of the latest advancements in veterinary science through continued education and professional development.

As a proud alumna of Michigan State University, I uphold the values of excellence and integrity in everything I do. Whether you're visiting for routine wellness exams, complex surgical procedures, or compassionate end-of-life care, I am here to provide comprehensive care for your cherished pets.

Let's work together to ensure a lifetime of health and happiness for your furry family members!

Dr. Patterson grew up locally in Bloomfield Hills before going on to attend the University of Alabama, where he graduated from the Honors College, dual majoring with a B.S. in Biology and Marine Science, as well as a minor in Spanish. During his gap year, Dr. Patterson gained experience in emergency medicine, as well as completed an internship rehabilitating wild sea turtles and cetaceans. He enrolled in 2019 at the University of Illinois College of Veterinary Medicine, and graduated in 2023. While in veterinary school, Dr. Patterson completed courses with a focus in Public Health and zoonotic disease, completed preceptorships at Brookfield Zoo and Shedd Aquarium in Chicago, and volunteered as a team leader at the student run Wildlife Medical Clinic. Dr. Patterson returned to Michigan following graduation and began working at BHVA while studying for his veterinary licensing exam and was excited to be able to join the team full time as a veterinarian once he passed the exam! In his free time, Dr. Patterson enjoys spending time with his two dogs, a Bernese Mountain Dog named Riggins and Bernese-Golden Retriever named Ridley. He also enjoys getting outdoors and spending time near any large body of water and is an avid sports fan, playing golf and tennis and cheering on the Crimson Tide, Illini, Wolverines, Lions, Tigers, and Red Wings. 

Liz is a 2002 graduate of the Macomb Community College Veterinary Technician Program. She was part of the BHVA team from 1994-2002 as a receptionist and veterinary assistant. She rejoined the BHVA team as a Licensed Veterinary Technician in 2013. Her special interests include dentistry, and canine behavior and training.

Liz lives in Royal Oak and shares her home with 2 Pointers, Roger and Rhonda. In her free time, Liz is a licensed judge for AKC Scentwork, UKC Nosework, CPE Canine Scent Sport, and C-wags Scent Detective trials and she also competes in these events with her Pointers. 

Shirley has been on staff with Beverly Hills Veterinary Associates, Inc. since its opening day in 1977, and, in addition to receptionist duties, aids with many types of veterinary tasks and dentistry. She has attended seminars on a wide variety of veterinary topics. A position on a horse farm gave her an introduction to animal care. Her attraction to dogs led her to ownership of Dobermans, boxers, pointers, and German shorthaired pointers, all of which she has trained and shown in conformation and obedience. She has been an obedience instructor for more than 20 years and is an all-breed conformation handler. Shirley enjoys raising puppies and participating in horse-related activities.

Andrea joined Beverly Hills Veterinary Associates in 2015. She graduated from Michigan State University with a Bachelor of Science in 2007. She has been working in Veterinary Clinics since 2005, and became a licensed veterinary technician in 2014. In her free time you can find her gardening, cooking, traveling, and spending time with her 2 girls and husband.

Raquel is a Licensed Veterinary Technician with 25+ years of experience in veterinary medicine, dedicated to compassionate, high-quality patient care. Outside of work, she’s a proud pet parent to two dogs and a cat.

Jenna brings over 12 years of customer service experience in the veterinary field, having worked as both a receptionist and veterinary assistant. Her passion for animals shines through in every interaction, and she takes pride in supporting both clients and their pets with care and compassion.
Originally born in Michigan, Jenna spent her early years in Florida and California before returning to Michigan, where she’s lived for the past 10 plus years. Outside of work, she’s an avid art lover and a dedicated Eminem fan. Jenna shares her home with her beloved Chihuahua, Vinny, who is truly the center of her world.

Coming soon!

Sophia joined the BHVA team in September of 2024. Prior to Beverly Hills Vets, she worked for a few years as a kennel technician. She lives with her two friends, 11 rats, one tortoise, three cats, and her dog Valerie. She spends her free time with her friends, but when not with them she's either designing tattoos, playing video games, or tending to her animals/plants. She hopes to eventually return to school to become a veterinary technician and a tattoo artist on the side.