Doctors & Staff

Our Doctors

Dr. Cindy Yao

Dr. Cindy Yao

I live in Stockton with my husband Brian, our Dachshund, Goose, and our Calico cat, Tuna.

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Dr. Marlena Cleary

Dr. Marlena Cleary

Hello! I’m Dr. Marlena Cleary. I am very excited to meet you and provide excellent care for your pet.

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Dr. Sydney Gillam

Dr. Sydney Gillam

Hello, I’m Dr. Sydney Gillam and I am so excited to be a part of the Sierra Veterinary Family.

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Our Veterinary Technicians

Jenee Giottonini

Jenee Giottonini

Hi, my name is Jenee. I started working here at Sierra while attending school to become a Registered Veterinary Technician.

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Jennifer Wang

Jennifer Wang

Hello, my name is Jennifer and I have always had a soft spot for animals, which is why I am currently working towards a career in the animal field.

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Megan Jumanan

Megan Jumanan

Hello, my name’s Megan and I live with my two dogs, Nemo and Tyson.

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Anna Peck

Anna Peck

Hello, my name is Anna Peck and I was born and raised here in Stockton.

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Katie Estoll

Katie Estoll

Hi, my name is Katie Estoll and my husband is Buddy Estoll.

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Our Hospital Administrators

Debbie Ruby

Debbie Ruby

Hello, my name is Debbie Ruby. You may have seen me or my Shih Tzu, Annabelle, walking around the clinic.

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Brenda Dockery

Brenda Dockery

Hi. My name is Brenda and I have been here at Sierra Veterinary Clinic since October 2005.

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Veterinary Assistants

Ashley Pattingale

Ashley Pattingale

Hi, I’m Ashley Pattingale and I joined the staff at Sierra Veterinary Clinic in March of 2017.

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Carol Brighton

Carol Brighton

Hi, my name is Carol Brighton. I grew up on a farm on Roberts Island.

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Front Desk

Alexis Preciado

Alexis Preciado

Hello, my name is Alexis and I have been at Sierra Veterinary Clinic since April 2015.

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