Welcome to
Whipple Avenue Pet Hospital

Proudly caring for pets in Redwood City since 1979.

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Our Team

Dr. Cyndi Stiglich

Medical Director & Owner


Dr. Cyndi Stiglich was born in Michigan and moved to California when she was 6 years old. As a child she brought home every stray cat or dog she found and even raised ladybugs under her mom's kitchen strainer. She attended U.C. Davis for her undergraduate degree and then became a Registered Veterinary Technician. She was an R.V.T for 15 years and even managed a veterinary hospital for multiple years. She graduated from Ross University of Medicine in 2008 and joined Whipple Avenue Pet Hospital in 2012 as an associate clinician and then became the owner of the practice in 2015. Her special interests include dentistry, oral/facial surgery, general surgery, and internal medicine. In her spare time she enjoys skiing, sailing, and riding horses. Dr. Stiglich treats dogs, cats, and pocket pets.

Dr. Heidi Denenholz

Associate Veterinarian


Dr. Heidi Denenholz wanted to become a veterinarian since the age of 5 and grew up in a house always full of cats and dogs. After graduating from Claremont McKenna College as a dual major in Organismal Biology & Ecology and Spanish in 2009, she officially decided to pursue veterinary medicine, and took additional college classes while working as a veterinary assistant in order to meet the requirements for vet school. Dr. Denenholz graduated from the UC Davis School of Veterinary Medicine in 2015. During veterinary school, she was the vice president of International Veterinary Outreach, a 501(c) non-profit organization started by UC Davis veterinary students to provide semi-annual free clinics to animals in rural Nicaragua. She completed a 1-year rotating internship in small animal medicine and surgery at Pet Specialists of Monterey in 2016. Dr. Denenholz joined Whipple Avenue Pet Hospital in 2018, and often goes by "Dr. D" since it is easier for clients to remember.

Dr. Laura Balgooyen

Associate Veterinarian


Dr. Laura Balgooyen grew up in Plymouth, Michigan. She spent the majority of her high school years at the local horse stable riding, taking care of the horses, and teaching horse-riding lessons. She attended Michigan State University where she earned a bachelor’s degree in Animal Science and competed on the equestrian team. After continuing her studies at Michigan State to earn her DVM degree in 2015, she moved to Sacramento to complete a year-long small animal medicine and surgery veterinary internship at a 24-hour emergency and specialty hospital. Dr. Balgooyen’s special interests include many areas of internal medicine and also wellness care. In her spare time, she enjoys horseback riding, traveling, and hiking.

Jordan Wolf

Practice Manager

Coming soon!

Support Team

At Whipple Avenue Pet Hospital, we welcome the opportunity to meet talented individuals who value teamwork, client service, and caring for pets.  If you would like to learn more about potential career opportunities, please send your resume to the Practice Manager, Jordan Wolf, at jwolfwhipplepet@gmail.com.

About Us


Dr. David Cowan was the original founder who established Whipple Avenue Pet Hospital in 1979.  After a long and successful career, Dr. Cowan retired and sold the hospital to his Associate Veterinarian, Dr. Cyndi Stiglich.  Dr. Stiglich became the new owner of Whipple Avenue Pet Hospital in 2015.   

Our hospital is located in beautiful Redwood City.  At Whipple Avenue Pet Hospital, we strive to provide the best pet parent experience and medical care for your pet. We are a full-service veterinary hospital primarily caring for cats, dogs, and pocket pets.  We are grateful to our local community for their decades of support and look forward to meeting you and your pet!


  • Monday: 8:00 am - 6:00 pm
  • Tuesday: 8:00 am - 6:00 pm
  • Wednesday: 8:00 am - 6:00 pm
  • Thursday: 8:00 am - 6:00 pm
  • Friday: 8:00 am - 6:00 pm
  • Saturday: Closed
  • Sunday: Closed


  • Preventative Care
  • Vaccinations
  • Dental Care
  • Diagnostic Services
  • Surgery, including Spay/Neuter Services

Community Involvement

Whipple Avenue Pet Hospital is proud to be a part of our local community.  We are always excited to partner with local businesses and animal rescue organizations to further the quality of care for pets within and enrich the human-animal bond.  Please contact us if you have any additional questions.   


Pet Insurance

We hope that your pet lives a happy and healthy life but there could be a time where your pet may have a medical event that could be costly. Because of this, it’s good to plan for the unexpected! We encourage pet parents to explore insurance coverage for their pet. We accept all pet health insurance plans. Most pet insurance plans are designed to reimburse you after payment has been made to the veterinary hospital. For more information on pet insurance, please visit:

TrupanionPets BestHealthy Paws

Helpful Links

Poison Control

Visit ASPCA’s Animal Poison Control Center website for any animal poison-related emergency

Poisonous PlantsTraveling with your Pet

Basic information on domestic and international travel of pets by the US Department of Agriculture

Peninsula Humane Society & SPCAVeterinary Oral Health Council