114 2nd St Box 326 • Langley, WA 98260 • (360) 331–8090

Emergencies emergency

Friendly, Expert Care
Devoted to You & Your Pets

about us

The Animal Hospital by the Sea is Whidbey Island’s newest full-service small animal hospital. We aim to serve our friends and neighbors and their beloved pets with complete veterinary care for many years to come. Located in the heart of downtown Langley, we welcome clients from all Whidbey communities as well as neighboring mainland cities. We hope you will appreciate our dedication and commitment to providing you with the best service available in a down home, personal atmosphere.


Our patients


Our veterinary hospital is devoted primarily to dogs and cats, enabling us to focus on the pet health issues that predominate in these species. We have extensive experience in the testing and treating of breed-specific health conditions and enjoy working with local advocates on the unique concerns their particular breed presents.


Our philosophy


At the Animal Hospital by the Sea, we strive to make a difference in the lives of Whidbey Island’s pets and the people who love them. Not just a job to us, you will find us continually working on improving our technical skills and knowledge. We want to be recognized as advocates for the patients we treat and the clients who care for them. We will always display integrity, commitment, and compassion in both our patient care, in our relationships with the clients we serve, and in the community to which we have the privilege to belong.

By always taking the time to listen to our clients, we hope to earn the trust and respect of our clients, patients, fellow professionals, and our unique Whidbey Island community. We will always try to exceed your expectations and strive for continuous improvement at all levels.

We hope that you will enjoy learning more about us, as we look forward to meeting you and your pets.


Our veterinarian and staff


Dr. Jean Dieden has nearly 30 years of experience dedicated to working as a small animal veterinarian in a wide variety of practice situations. She brings to the Animal Hospital by the Sea an extensive breadth of knowledge born from successfully working in all manner of circumstance with people from all walks of life, from farm communities in New England to bush villages in Alaska to emergency care in downtown Seattle. Having chosen South Whidbey as her home for the past 14 years, she is pleased to finally be able to fulfill her wish to bring her skills to serve her friends and neighbors in the unique community we call home.

Our veterinary staff is equally committed to providing outstanding pet health care to our patients. This talented team has extensive experience and a wealth of knowledge achieved through personal dedication and years of professional veterinary care.


Our veterinary hospital


There are many ways to help the environment remain green. Emily Wadhams, formerly a vice president at the National Trust for Historic Preservation, once said, “The greenest building is the one that’s already built.”

When Dr. Dieden was looking for a location for a new practice in the area, the availability of the former Langley medical clinic building seemed to allow her plans to fall right into place. The zoning was right and the location in the heart of town along busy Second Street combined to make it an ideal choice. Langley designer Eric Richmond of Flat Rock Productions and contractor Gemkow Construction kept the project local and remodeling started in the late summer of 2011. As the superficial layers first put on almost 45 years ago were removed, the bones of the 1968-era building were gradually revealed. The building’s utilities, insulation, and floor plan were updated to meet current building, ADA, and energy codes. Further equipped with state-of-the-art veterinary equipment and technology, “114 Second Street” was finally re-presented to the Langley community as the modern, up-to-date facility it is in mid December 2011.

We are proud of the work that has been done and what we have made here in Langley and are eagerly looking forward to serving the South Whidbey pet community.


Customized pet care and service


At the Animal Hospital by the Sea, we believe in working with each patient on an individual basis. There is no room for a “one-size-fits-all” policy when it comes to veterinary care. We will spend the time it takes to appreciate each pet’s specific lifestyle and needs, customizing our preventive care and treatment recommendations to best suite his or her circumstances. We believe in working as partners with our clients to see that all their dogs and cats are kept healthy and happy.

Thank you for taking the time to learn more about us. If you have any questions or would like to schedule an appointment, please don’t hesitate to contact us.


Additional resources



About Us
Veterinarians & Staff
Payment Options
Hospital Tour

Animal Hospital by the Sea rocks! Jean is a fabulous veterinarian, the environment is warm and relaxing and there is great communication between Jean and her staff. We are all so very happy to have found them!
Jodi Starcevich, Matt Costello, Groovy Roux and Salinger

Dr. Dieden’s surgical technique allowed our dog a quick and trouble free spay recovery without the stress and discomfort of an Elizabethan collar (head cone).  We are very grateful to Dr. Dieden and staff who assisted with Rena’s surgery.
Bob and Jayme Holmberg

Meshuggeneh was the most relaxed cat during her visit to Dr.Jean that I think she would have stayed longer. Thank you both Holly and Dr. Jean for your time and help. Best find in Langley... a great vet!
Jeanniemaria Barbour

Jean and staff Thank you so very much for the care given to our Lab, Lily We are so appreciative of your time, concern and love given to our pet. Lily is forever grateful and so are her humans, Nina and Chris We hope the next visit will be just the standard check up and not an emergency, again thank you for the excellent care. Animal Hospital By The Sea, you rock!
Chris Skatell

Dory a Golden on the island says thank you.
Louise Long

The staff and Jean are fabulous. We are so lucky to have them on the Island.
DeLaine Emmert

Thank you Dr Jean Dieden for taking such good care of my labrador, Kinsey. Kinsey had a raging hot spot. Thanks to Dr Dieden’s caring and effective treatment, Kinsey is much more comfortable and on the mend.
Lia Bijsterveld

It doesn’t get any better than this animal hospital for care for your pet.  Jean Dieden and her team of Holly and Stacy are top notch and they are genuinely caring.  I also like the fact that this is a animal hospital and part of that terminology means they do their own blood work.
Rob Felding

Dr. Jean held my hand throughout it all and, had it not been for her professional intuition about a prescription Lena was given during emergency treatment, my little girl would not be the happy, healthy kitty she is today. As for how my other cat Dexter feels about Dr. Jean, you can see for yourself around this website.
Susan Hanson