Meet the Team

Meet the Team

Our philosophy at Twinbrook Animal Clinic, Inc. is to Treat all patients with the highest levels of compassion and understanding; Work hard to provide the highest quality care available; Inform and actively involve all clients in the treatment and care of their pets; Never be afraid to go the extra step to improve the patients’ quality of life; Bring owners and their pets closer together; Remain dedicated to the continuous education of our staff on the most recent and advanced techniques in veterinary medicine; Offer preventative health care for the optimal maintenance of the health of our patients; Operate in a courteous and efficient manner and Keep the patients our top priority at all times.


Dr. Janine  Callen <br> DVM, CCRT, CMT photo

Dr. Janine Callen

Dr. Callen is the owner of Twinbrook Animal Clinic, Inc. She is a 1994 graduate of Purdue University College of Veterinary Medicine. She practiced in Vermont for 2 years, then in Pittsburgh for 1 1/2 years before purchasing Twinbrook Animal Clinic, Inc. in 1997. Dr. Callen studied Physical Rehabilitation with the University of Tennessee and the Canine Rehab Institute and is a Certified Canine Rehabilitation Therapist as well as a Canine Massage Therapist. She provides Rehabilitation Services through Therapeutic Options at Twinbrook Animal Clinic, Inc. Dr. Callen lives with her husband, 4 dogs, 1 cat and 3 horses. If she has spare time, she enjoys trail riding and Cowboy Mounted Shooting.

Dr. Laurie  Schessler <br> DVM photo

Dr. Laurie Schessler

Dr. Laurie Schessler has been an Associate Veterinarian since August 2003. She received her Doctor of Veterinary Medicine from Purdue University College of Veterinary Medicine in 1995. She worked as a small animal practitioner in the Pittsburgh area for 8 years prior to becoming a member of our team. She lives with her husband (also a veterinarian) 3 children and 2 cats and a Cocker Spaniel. In her spare time she enjoys running, being outdoors and spending time with her family.

Dr. Shawna  Rau <Br> DVM photo

Dr. Shawna Rau

Dr. Shawn Rau has been an Associate Veterinarian since June 2008. She received her undergraduate degree from Cornell University and Doctor of Veterinary Medicine degree from The Ohio State University in 1998. After graduation she worked in a small animal practice in Boston for 6 1/2 years before returning to her hometown of Pittsburgh. She lives with her 2 dogs, 2 cats, 2 lizards, 1 snake, and 8 tanks full of fish. Dr. Rau keeps busy with her family enjoying all indoor and outdoor activities and sports (as a spectator and participant), good food, and taking advantage of all the great arts and entertainment of Pittsburgh.

Dr. Leeann  Oliver <br> DVM photo

Dr. Leeann Oliver

Dr. Leeann Oliver as been an Associate Veterinarian since 1999. She graduated from Tufts University of Veterinary Medicine in 1996. She has lived and practiced in Butler County since graduation. Dr. Oliver lives with her husband, 2 sons, a dog, and a cat. She is interested in many aspects of traditional medicine.

Dr. Abigail Davidson </br> DVM photo

Dr. Abigail Davidson

Dr. Abigail Davidson has been with our team since 2006, first as a veterinary technician and more recently as the newest doctor added to our practice. She graduated in 2016 from Ross University School of Veterinary Medicine on the island of St. Kitts (Caribbean) and completed her clinical year at the University College in Dublin, Ireland. Dr. Davidson takes a special interest in feline medicine and plans to further her knowledge and experience in geriatrics, hospice and home care.


Kathryn <br> Practice Director  photo

Practice Director

Katy came to our clinic in September of 2017 as the new Practice Director. She was a client of ours for 14 years and brought over 20 years of experience from a zoological and management background. Katy is looking forward to continuously helping our clients, patients, and community by improving our services and developing new programs. She grew up with a variety of pets, but now has a Goldendoodle “Holly”, chickens, and snake “Luna. Katy loves the beach, volunteering at schools and her church, sports, and most importantly spending time with her husband, 2 kids, family and 14 nieces/nephews!

Scarlett <br> Office Manager  photo

Office Manager

Scarlett started with our team in the fall of 2015 as a full-time receptionist, then accepted the position of Office Manager in October of 2016. She has a degree in biology from Slippery Rock University and has completed two zoo internships. She has a strong affinity for orange tabbies, having two of her own, but she is completely smitten with a stumpy legged golden retriever mix named “Flynn” and his new sister “Flower”.

Customer Service Representatives

Coralie  photo


Coralie started working at Twinbrook Animal Clinic, Inc. in March 2002 as a full-time receptionist. She graduated in 1979 with a BS in Equine Management. Before returning to the Butler area, she owned and operated a horse training/breeding farm in Michigan for about 20 years. She has a rescued Sheltie named Liam,  several cats and Arabian horses. In her spare time, she continues to train horses and give riding lessons.

Kim  photo


Kim came to us in January 2017 as one of our new CSR’s. She is definitely a people person and loves talking to our clients about their furry friends. Kim enjoys spending time with her husband and children, as well as her 6 English springers! She also enjoys “dinner & movie” nights.

Laurie  photo


Laurie joined Twinbrook Animal Clinic Inc. As a part time receptionist in May 2001. She lives in the Valencia area with her husband, three children, a Cocker Spaniel named Snoopy and a cat named Luna. She loves the beach and camping.

Linda  photo


Linda has worked at Twinbrook Animal Clinic, Inc. as a part time receptionist since June, 1999 Her full time job is in the field of Health Information Technology but insists this is more rewarding. She lives in Butler with her two dogs. Brooks is a Lab/Golden/Setter mix and Jenny Mae is a Pomeranian/Sheltie mix. Linda is active in Agility Trialing and Obedience and belongs to a local training club where she focuses on event planning and agility classes. She enjoys the outdoors, art and photography.

Nicky  photo


Nicky is a part time receptionist. She started at Twinbrook Animal Clinic, Inc. in August of 2015. She has been around animals her entire life, and currently has 3 dogs; 2 Beagles Tripp and Ike, and a Parson Russell Terrier, Lily; and 2 cats, Dottie and Obi. She hopes to pursue a career in K-9 law enforcement. In her free time, she enjoys the outdoors and community service events for Air Force JROTC.

Veterinary Technicians

Nicole <br> Head Technician  photo

Head Technician

Nicole joined the Twinbrook Animal Clinic, Inc. team in January 2009 after graduation from the Vet Tech Institute in 2008 and became our Lead Technician in November 2012. Nicole has a busy family with her husband and two sons. She has three dogs, Hera, Aries, and Odin . She likes horses and unicorns. In her spare time, she enjoys gardening, her chickens, and playing video games.

Angie  photo


Bio coming soon!

Carly  photo


Carly joined the Twinbrook Animal Clinic, Inc. team in May 2012, after attending the Vet Tech Institute, for her first Vet Tech job. Carly has a brown Tabby cat named Tyger and a Maine Coon mix named Felix. In her spare time, she enjoys doing crafts, such as painting and knitting. Carly also loves outdoor activities like camping and fishing. She has played field hockey and club soccer and enjoys watching hockey and football.

Laura  photo


Laura joined the Twinbrook Animal Clinic, Inc. team in November 2001 as a part time veterinary technician, then became full time in June 2002. Laura is a Certified Canine Rehabilitation Assistant and a huge part of Therapeutic Options at Twinbrook Animal Clinic, Inc. She graduated from LaRoche College with a BS in Graphic Design and upon graduation she moved to Anchorage, Alaska, to work with a Civil Engineering company. She returned to Pennsylvania two years later to continue her career. After raising her family she decided to change careers to pursue her passion in the veterinary field. Laura and her family show Vizslas and Beagles in AKC conformation.

Hannah  photo


Hannah started working for Twinbrook Animal Clinic, Inc team in May 2016. She graduated from the Vet Tech Institute in 2014. She has 2 cats (Malone and Dolan), 2 chinchillas (Willis and Philipae), 1 bearded dragon (Buggy) and 1 old Labrador named Max, who is her favorite. In her free time she enjoys going to camp, boating, outdoor games and hanging out with her grandparents.


Sarah  photo


Sarah joined the Twinbrook Animal Clinic, Inc. team in August 2012 as part of the kennel staff. She has also worked as a technician. Sarah is a 2010 graduate of Thiel College with a BA in Biology and minors in medical and wildlife biology and coaching. She has a black Labrador named Luna who competes in DockDogs competitions, a rabbit named Crosby, and 3 turtles. She has been an avid runner since 2002 and competes in 5k runs and half marathons. She is also a die hard Pittsburgh Penguins fan.

Amanda  photo


Amanda started in July 2018 as our new Kennel attendant! She is a 2016 graduate of Thiel College with a BA in Conservation Biology and minors in Wildlife/Behavioral biology, as well as Environmental Science. Amanda was an intern under our Director Katy at the Pittsburgh Zoo for 4 ½ years caring for penguins and various aquatic animals. She also worked in wildlife and animal rescue/adoption centers. Amanda has a calico cat “Heffalump” and a black cat “Binx”. In her spare time, she enjoys camping, hiking, soccer, and spending time with family & friends.


Laurel  photo


Laurel was hired in January 1998, and is the Twinbrook Animal Clinic, Inc. Groomer. She lives in Butler County with her husband, a Retriever and her Wiener (a Dachshund)! Laurel is accomplished at grooming all breed types and is especially good with cat grooming. In her spare time, she's a beekeeper, a musician, and a grandmother of five. She also enjoys yoga, spending time with her grandchildren (they think she's normal!), and she does a great Church Lady impersonation. Isn't that special? Laurel recently added the Grinch to her repertoire.

Tiffany  photo


Tiffany is our 2nd professional groomer who started in November 2018. She has groomed for three years but has worked with dogs and cats for seven. Tiffany has a 2 yr old Diluted Calico named “Vierra” and a 3 yr old Bearded dragon named “Callie”. She is familiar with all breed cuts but some of her past favorite dogs to groom include Schnauzers, Scottish Terriers, Corgis and Australian Shepherds. Tiffany enjoys to draw, paint, read and watch hockey in her spare time. She loves the outdoors and will often go for walks with her cat and her parents’ dogs!

Twinbrook Animal Clinic

1120 Pittsburgh Road

Valencia, PA 16059

For general information, questions, appointment requests, call us at:

(724) 898-2300 Email Us: [email protected]


Sunday Closed

Monday 8:00am - 8:00pm

Tuesday 8:00am - 8:00pm

Wednesday 8:00am - 8:00pm

Thursday 8:00am - 8:00pm

Friday 8:00am - 6:00pm

Saturday 8:00am - 12:00pm