Dr. Aaron Cohen DVM


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: pahpets@icloud.com

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: pahpets@icloud.com


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. Her sunny disposition, willingness to help others, and charm with animals endears her to our clients and fellow staff. She strives to bring all she can to PAH, to make all our clients & their pets feel like a top priority. In her free time, Jasmine enjoys reading, art, gaming, time with family, and her cat, Daisy.

Hired: 2013

Years in Practice: 7


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!

Hired: August 2019

Interests: Family, Traveling, And CATS!

Veterinary Technician Assistant


RVT – Registered Veterinary Technician

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.


Kennel and Technician Assistant

Megan started working with us here at Peninsula Animal Hospital in June of 2019. She started as a Kennel Technician as she loved working with the boarders and helping around the Hospital. Her favorite part has always been working with the animals though she has grown into an amazing technician assistant and enjoys doing services such as pulling blood, placing catheters, and monitoring for surgeries. Megan is excited to continue her career in Veterinary medicine and plans to obtain a bachelors degree in Biology.

Years in Practice: 1
Interests:Veterinary assistant training
Hired: June 2019
Veterinary Technician Assistant


Technician Assistant and Pet Care
I have lived in Monterey County for my entire life and have surrounded myself with animals for as long as I can remember. I am currently attending Monterey Peninsula College and am planning to finish off my bachelors in Biology to then move on to vet school. Growing up I knew I wanted to be a Veterinarian since second grade, and I am so happy to be able to start off my journey at PAH. As for my own furry friends, I have an 11 year old Mini Australian Shepherd and a 14 year old Siamese cat. In my free time I enjoy reading, visiting bookstores, and finding every beach spot possible.


Veterinary Technician Assistant

With an open mind and compassionate heart, Gabriella joined the fun world of veterinary care in 2018. Straight out of high school and a mind focused on getting into vet school, she’s always eager to learn how to care for our four legged friends! When she’s not nose deep in a college text book, she’s running with her Rottweiler, snoozing with her shih tzu or trying to cook with her cats who are always watching and ready to catch a bite!

Hired: November 2021

Veterinary Technician Assistant


Jeanine first joined the PAH team in December 2021 as a Central Coast College student extern. Her love for animals started at a young age when the only book she checked out from the library was a book about different animals. That is how she decided a career with animals was in her future. Being at PAH she is excited to see every pet come through the door and will give them the best care that they deserve. With her compassion and hard work PAH has welcomed her has a part of the family.

In her free time you can find Jeanine spending time with her family and frenchie Rocky, reading a book, or playing video games.

Hired: January 2022

Certified Veterinary Assistant / Pet Care