Meet the Staff

Meet the friendly staff at Peninsula Animal Hospital!

  • Dr.
    Aaron Cohen

    A native of Jacksonville Florida, Dr. Aaron Cohen’s first pet was a baby chick by the name of “Peep-Peep”, who eventually grew up to be a rooster. After that, he pretty much stuck to just cats and dogs.

    Dr. Cohen attended the University of Florida, Gainesville where he studied animal science and psychology. Shortly thereafter, he transferred to Northeastern University in Boston. He completed his Doctor of Veterinary Medicine at Ross University, St. Kitts in the West Indies.

    After serving in an internship program at the Massachusetts Society for Prevention of Cruelty to Animals in Springfield, Mass, Dr. Cohen settled in with Porter Square Veterinarians of Somerville for the next seven years. Deciding to start his own practice, Dr. Cohen began an exhaustive search that would bring him from the East Coast to the West Coast.

    Dr. Cohen bought Peninsula Animal Hospital in December of 2010. He is active in the American Veterinary Medical Association, California Veterinary Medical Association, and the Monterey Bay Veterinary Medical Association. In his free time, he enjoys hiking, biking and conversing with his cats.

    Years in Practice: 17

    Education:University of Florida, Northeastern University, Ross University

    Email:[email protected]

  • Dr.
    Johanna Sherrill
    DVM, MS, Dipl. ACZM
    Associate and Practice Administrator

    Dr. Johanna Sherrill graduated from the University of Georgia with a Degree in Veterinary Medicine in 1995 and a Master's in Medical Microbiology in 1996. She then completed a general medicine and surgery internship in San Diego, an aquatic internship at Mystic Aquarium in Connecticut, and a residency in zoological medicine at the National Zoo in Washington, DC. Dr. Sherrill became board-certified in zoological medicine in 2005. She has worked as a relief Veterinarian in California for 20 years, treating all animal species even fish. She is passionate about marine conservation and an eco-friendly lifestyle.

    Years in Practice: 28

    Education: Doctorate Veterinary Medicine, MS-Medical Microbiology, BAS- Stanford University

    Interests:Horseback-riding, Water Sports, Singing, Playing the Guitar

    Email:[email protected]

  • Jasmine
    Client Care / Technician Assistant

    Jasmine joined our practice in 2013 and has since become our frequent MVP, learning many skills and performing a variety of roles. Hey sunny disposition, willingness to help others, and charm with animals endears her to our clients and fellow staff. She says, “I enjoy working with such an amazing team, coming together to help animals.”> In her spare time, Jasmine enjoys art, gaming, time with family, and her cat, Daisy.

  • CheyAnn
    Technician Supervisor

    CheyAnn, our technician supervisor, joined PAH in February of 2019 bringing her positive and carefree attitude with her. CheyAnn has been in veterinary work since 2012 and is sweet, attentive, and highly knowledgeable. She strives to make every pet and client feel important. CheyAnn endears herself to staff and animals by just being herself (and singing along with Pandora wherever she goes!)

    She enjoys outdoor activities such as dirt bike riding and camping. CheyAnn especially loves concerts and spending time with her family and pets. She has a Pit Bull named Kegger and tortoiseshell cat named Effy.

  • Yvette
    Certified Veterinary Assistant

    Yvette is helpful, motivated and determined. She is always willing to stop and help anyone who needs it. Yvette recently completed a rigorous training program, earning the title of CVA (Certified Veterinary Assistant). She is currently furthering her education to be an RVT (Registered Veterinary Technician).

    She enjoys watching movies, going to the beach, and spending time with her family and her adorable pets. She has a dog named Hulk and a cat named Drax (Avengers anyone?)

    Years in practice: 3

    Interest: watching horror movies, reading, skateboarding, playing video games

  • Joanna
    Veterinary Technician

    Joanna joined PAH in August 2019 bringing a robust background in veterinary technical work around the peninsula. Born and raised in Monterey county, her passion for animals began at a young age and has been growing ever since. Joanna is highly obsessed with her feline friends, Yomi and Zuki. She is a hard worker with a kind attitude. She has a calm approach around pets and people and is a joy to work with every day, applying a dedicated work ethic to her day. Come see Joanna in action!

    Interests: Family, Traveling, And CATS!

  • Nick
    Veterinary Technician

    Nick joined us in 2019 with over a decade of experience in the veterinary field. He found his love for animals when very young while spending summers with his late grandmother. This early love for animals instilled a passion and care for pets which would guide his path. His start began with a veterinary assistant program in Orange County which led him to a job with a feline specialty practice. Through the years, Nick has culminated a variety of skills through working in feline specialty, emergency, and internal medicine hospitals, among others. His passion and experience with pets is ever present at our practice. In his down time, Nick enjoys running, hiking, traveling, and gaming. He is the proud father of 4 beautiful cats: Olivia, Bentson, Sandia, and Marcelo.

    Years In Practice: 13

    Interests: Running, Hiking, Traveling, Cats

  • Berenice
    Certified Veterinary Assistant

    Berenice joined PAH in March of 2019 as a valued member of our capable staff. She recently completed her training to become a CVA (Certified Veterinary Assistant) and jumped right in to the rigors of our daily schedule at the hospital. She is bright and focused with a strong work ethic, always working to make our day better. Berenice shows her love of animals in a calm and kind manner, putting her patients at ease.At home, Berenice spends time with her dog named Bambi and a chicken named Ginger, and recently found a home for her foster kitten.

    Her interests include spending time with friends and family, off-roading (and getting her jeep dirty!)

  • Maria
    Certified Veterinary Assistant

    Maria graduated from Central Coast College as a veterinary assistant (CVA) and has been in veterinary medical practice for five years, working first in general practice and then in emergency care. She joined PAH in May 2020 and we are thrilled to have her join our team of outstanding technicians and assistants. Maria is now focusing on becoming an RVT, or Registered Veterinary Technician by July 2020. Maria says, 'Making a career out of my passion for helping animals is a joy in my life.”

    She has one dog, Niko, and hamster named Mouse.

    In her personal time, Maria loves playing video games and relaxing at home with her dog and significant other.

  • Megan
    Kennel and Technician Assistant

    Megan joined us in June 2019 as a technician assistant. She loves playing with our boarding pets and helping with any kennel work, bathing, procedures or surgeries. Megan's care for animals shines through and we hope you can enjoy her bright smile at PAH like we do everyday!

    Years in Practice: 1

    Interests:Veterinary assistant training

    Email:[email protected]

  • Katy
    Special Projects Assistant

    Katy joined us in June 2019 as a special projects contractor, assistant book-keeper and technician assistant. With many years of experience in managing projects in Atlanta, GA and Los Angeles, Katy is beautifying our practice by organizing, deep cleaning, and improving our efficiency. She changes hats easily and can be found knee deep in Quickbooks as well as all of our hospital laundry. Katy loves to walk the boarding pets even late into the day, just to make them feel special. Stop by soon and see the amazing work that Katy has done to transform our boutique practice!

    Years in Practice: 1

    Education:Georgia Tech, Mathematics

    Interests: Yoga, Body Surfing, Movies, Books, Meeting with friends for fondue!

    Email:[email protected]

Contact Us

We look forward to hearing from you

Office Hours

After Hours Emergency Call: 831-899-7387


8:00 am-1:00 pm

2:00 pm-5:30 pm


8:00 am-1:00 pm

2:00 pm-5:30 pm


8:00 am-1:00 pm

2:00 pm-5:30 pm


8:00 am-1:00 pm

2:00 pm-5:30 pm


8:00 am-1:00 pm

2:00 pm-5:30 pm


9:00 am-12:30 pm

2:30 pm-4:30 pm




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