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.
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!

Interests: Family, Traveling, And CATS!


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!)


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 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


Susan joined the team in September of 2020 as our new Office Administrator. She brings with her over 10 years of experience managing people and programs at the Monterey Bay Aquarium where she worked after earning her Marine Sciences degree from Texas A&M at Galveston. Susan enjoys reading, candle making, and catering to every whim of her canine overlord, Ripley.


Technician Assistant

Judy joined us in 2020 as a Kennel and Technician Assistant. She’s always had a strong love for animals since she was young and never met an animal she didn’t love! She is a passionate equestrian with hopes to ride in college. At home, she has a cat named Shiloh, a dog named Abby, and over 50 betta fish, not all of whom have names, yet. Whenever she can find the time, Judy enjoys going to visit and riding her horse, Ultimate.