Dr. Kären Marsden
Medical Director

Dr. Kären Marsden completed her undergraduate degree from the
University of Pennsylvania and then earned her DVM in 1998 from Tufts
University Cummings School of Veterinary Medicine. Dr. Marsden was
board certified in Large and Small animal acupuncture by the
International Veterinary Acupuncture Society (IVAS) in 2002. Dr.
Marsden has advanced training in Dentistry and Nutrition. She was
awarded Holistic Practitioner of the Year for North America in 2018 by
the AHVMA.

Dr. Marsden has practiced all over the world from being a veterinary
surgeon for WSPCA in Thailand’s spay neuter program for homeless dogs
and cats to working on orphaned sloths and howler monkeys in Costa
Rica. She enjoys treating all animals great and small with an
integrative approach to medicine and health care.

Dr. Marsden and her family have just moved to Bird Rock and are so
excited about the beautiful weather. She and her husband are both ASA
certified skippers and can’t wait to start sailing, as well as hiking
with their two weimaraners, exploring the beaches, and learning to
surf with their two sons.

Dr. Katherine Lopez
Veterinarian

Dr. Katherine Lopez obtained her Doctor of Veterinary Medicine in 2001 at Virginia Tech. She completed two additional years of post-doctoral training in small animal medicine and surgery at Georgia Veterinary Specialists and the University of Illinois.

Her work experience has included emergency and critical care hospitals and family practice. Her practice philosophy is based on educating owners on their pets’ conditions so that all care decisions are understood and made together as a team.

In her personal time, she enjoys vegetable gardening, triathlon, and exploring San Diego with her husband and two boys.

Dr. Rena Singer
Veterinarian

Dr. Rena Singer graduated from the College of Veterinary Medicine at Michigan State University in 2014. She moved to San Diego after graduation to start her veterinary career in Equine Medicine. Through her passion for sport horses and sports medicine, she became interested in rehabilitation, acupuncture, and chiropractic care. She completed further training and certification in these fields through the Canine Rehab Institute, Chi Institute of Traditional Chinese Veterinary Medicine, and Options for Animals College of Animal Chiropractics.

Coming from a busy canine rehabilitation practice, Dr. Singer is excited to bring these skills and services to Bird Rock. Her main practice interest is to promote pain free quality of life for pets through compassionate and individualized care. 

When not working with pets, Dr. Singer enjoys teaching Barre classes across the street, spending time with her dog Cooper, and exploring San Diego with her husband.