At Circle B Veterinary Hospital, we believe in providing compassionate, cutting-edge care for your pets. As a trusted partner in your pet’s health journey, we are committed to ensuring they live their happiest, healthiest lives.

At Circle B Veterinary Hospital, we believe in providing compassionate, cutting-edge care for your pets. As a trusted partner in your pet’s health journey, we are committed to ensuring they live their happiest, healthiest lives.

Dr. David Buelna was born and raised in Houston, Texas. He attended the Village School and later graduated from Strake Jesuit College Preparatory. He always wanted to become a veterinarian and set out to do so since his start at the University of Texas at Austin. He attended St. Georges Veterinary University and lived in the Caribbean for 3 years. Here he earned his Doctorate of Veterinary Medicine and on the side, he earned his PADI Rescue Diver certification. His areas of interest include preventative medicine, ultrasound and other advanced imaging modalities. He has 2 sons, Logan and Eli, and a daughter, Tilly with his amazing wife Dr. Molly Obergfell. They spend most of their time working together, outdoors, cooking, and watching movies when not running three businesses!

Dr. Molly Obergfell graduated from Texas A&M University with her undergraduate and Doctorate of Veterinary Medicine. As a Veterinary student Dr. Obergfell travelled to South Africa, Europe, Costa Rica, and Mexico working with Veterinarians in Conservation Medicine. After graduation she joined private practice and worked in wellness, surgery, and emergency. Her interests include dermatology and internal medicine, but her favorite aspect of veterinary medicine is being a part of her clients special bond with their pets. Outside of the clinic you can find Dr. Obergfell with her amazing hubby, Dr. Buelna, their two precious boys, Logan and Eli, and daughter, Tilly! Dr. Obergfell enjoys spending time with her family, cycling, swimming, roller coasters, and live music.

Dr. Darla Chow is a native Houstonian. She graduated from St. John’s School in Houston, Texas. Dr. Chow earned her Bachelor’s degree in Biology from the University of Texas at Austin and her Doctor of Veterinary Medicine degree from Texas A&M University. She completed a one year, small animal medicine and surgery internship at VCA Vet Care and Referral Hospital in Albuquerque, NM. After her training, she worked as a small animal veterinarian in Dallas, Texas. She completed extensive ultrasound training through Sound Eklin Academy of Veterinary Imaging and received a Certificate of Completion in Advanced Imaging. Her primary areas of interest include feline medicine and ultrasonography.

Dr. Chow shares her home with her husband, Phat, her daughters, Caitlin & Alex, and four felines, Twiggy, Shiner, Tuna, and Shadow. She enjoys spending time with her friends and family, running, and cooking.

Dr. Clark grew up in Richmond and graduated from Stephen F. Austin High School in 2002. He is a 2009 graduate of the Texas A&M College of Veterinary Medicine, after which he came back home and has been practicing in the area ever since. His primary areas of interest include preventative medicine, surgery, and behavior. He is looking forward to meeting you and your pets!

Dr. Ciezkowska brings a unique combination of international veterinary education and diverse clinical experience to our team. She graduated from the Wroclaw University of Environmental and Life Sciences in 2020 and later completed the AAVSB PAVE clinical program at Oklahoma State University.
Before becoming a veterinarian in the United States, she spent two years working as a veterinary technician—an experience that gave her a strong foundation in patient care, anesthesia monitoring, and client communication. After practicing in Illinois for three years, she recently relocated to the Houston area.
Dr. Ciezkowska’s special interests include ultrasound, dentistry, preventive care, and canine and feline medicine. She is committed to compassionate, evidence-based care and understands the importance of teamwork in providing an exceptional experience for every pet and family.
Outside the hospital, she enjoys traveling, reading, cooking, and practicing jiu-jitsu. She also loves spending time with her family, friends, and her three pets: Tex, a Golden Retriever; Zuri, a Pitbull mix; and Richard, an orange cat.

At Circle B Veterinary Hospital, we are dedicated to providing exceptional veterinary care with compassion and expertise. From routine wellness exams to advanced diagnostic procedures, our team is committed to keeping your pets happy and healthy. Contact us today to learn more about our services or to schedule an appointment. Your pet's health is our priority!