Our Story

Family-owned care in Chatsworth for more than 50 years.

A Family-Owned Practice Built on Trust

For more than 50 years, Cozycroft Pet Hospital has cared for generations of Chatsworth pets and the families who love them. As an independent, family-owned practice, we combine experienced veterinary medicine with the personal attention, kindness, and familiarity that make every visit feel like care from family.

A Familiar Face for Over 40 Years

Suzi Wolff, Practice Manager

Suzi Wolff has been a familiar and welcoming presence at Cozycroft Pet Hospital for more than 40 years. She began her career alongside Dr. Steve Haerther as a veterinary assistant, developing a deep understanding of patient care and the special bond families share with their pets.

After transitioning to the front office and practice management, Suzi built lasting relationships with generations of Cozycroft clients. Today, she remains the heart of the practice—a trusted source of comfort, knowledge, and familiarity who helps every client and pet feel like part of the family.

The relationships we build with pets and their families are at the heart of everything we do.

-Suzi Wolff

A Legacy of Care in Chatsworth

For more than 50 years, Cozycroft Pet Hospital has cared for generations of Chatsworth pets and the families who love them. Dr. Steve Haerther built the practice around a simple belief: exceptional veterinary medicine should always feel personal, compassionate, and centered on the individual needs of every pet.

Today, our family is proud to carry that legacy forward. We are pairing the familiar, relationship-based care our community has trusted for generations with modern diagnostics, technology, and continued investment in the hospital’s future.

IN MEMORY OF

Dr. Steve Haerther

1953 - 2026

After graduating from Iowa State University, Dr. Steve Haerther moved to California and began a remarkable career at Cozycroft Pet Hospital that would span more than four decades. Cozycroft became his second home, and he treasured not only the opportunity to care for animals, but also the personal relationships he built with every client and family who walked through the doors. His warmth, compassion, and commitment to treating people and their pets like family became the foundation of Cozycroft. On the rare occasions he was not at the hospital, he could usually be found watching his sons play baseball—his other great joy in life.

Dr. Haerther is survived by his wife, Susan; his sons, Cody and Casey; and his five grandchildren. His family is honored to carry forward the tradition he began by continuing to provide high-quality veterinary care in the welcoming, family-friendly atmosphere that meant so much to him.