Meet The Team

  • Louisa Asseo, DVM
    Louisa Asseo, DVM, DABVP
    Medical Director

    Dr. Louisa Asseo grew up in sunny Southern California. As a child, her love for animals and a passion for science made the decision to pursue a career in Veterinary medicine a “no brainer”. She graduated with a bachelors in General Biology from UCLA, and then received her DVM degree from UC Davis in 2002. She has practiced in Contra Costa County since her graduation from Veterinary school.

    In 2015, Dr. Asseo became a Diplomate of the American Board of Veterinary Practitioners with a specialty certification in dog and cat medicine and surgery. She continues to expand her knowledge of Veterinary medicine through attending continuing education and collaborating with local specialists to better help her patients.

    An enthusiastic interest in exotic animal medicine has pushed her to dedicate some of her career focus to reptile and small mammal medicine and surgery.  She is an active participant in the international Association of Reptilian and Amphibian Veterinarians (ARAV) and currently co-chairs a committee for the ARAV.  She is also a member of the Association of Exotic Mammal Veterinarians.  Her focus and dedication to these special species had gained her recognition as one of the leading exotic veterinarians in the area.

    To serve her local veterinary community, she has been on the board of directors for the Contra Costa Veterinary Medical Association (CCVMA) for the past 6 years and is the current president of the CCVMA.

    She spends time with her sizeable rescue family of critters at home, including 3 cats, 2 dogs, a handful of reptiles - including a 22-year old blue-tongued skink, and a Meyer’s Parrot.  When she is not at home, Dr. Asseo spends her time kickboxing, running, scuba diving, and wine tasting. In 2014 she received her certification as a PADI Master Scuba Diver.

  • Dietrich Vranka Hospital Manager Oasis Veterinary Hospital
    Dietrich Vranka, RVT
    Hospital Manager

    Bio coming soon.

  • Irene Toy RVT Oasis Veterinary Hospital
    Irene T, RVT
    Technician Superisor

    Irene was born and raised in the Bay Area and has been surrounded by animals her entire life. She majored in English at UC Davis, but it was no surprise when she became a vet tech 12 years ago. In 2011 she became an RVT. She is experienced in general practice, emergency, critical care, and internal medicine and loves the opportunity to work with the exotic animals that visit Oasis. 

    In her free time, she enjoys watching horror movies, going on hikes, and spending time with her three perfect cats - Buffy, Dexter and Oswald Cobblepot

  • rosaneva veterinary nurse oasis veterinary hospital
    RosaNeva H, RVT
    Veterinary Technician

    RosaNeva was born and raised in the Bay Area. At the age of 10 she assisted her American Bull Dog in whelping 13 puppies. With that, her interest in veterinary medicine was born. She earned her Associate Degree from Western Career College, and received her RVT in 2005. 

    Her number one love and priority is her family:  2 boys, a pitbull, and the oldest of the children Doodie the cat. She loves to pass time staying active, gardening, and cooking.

  • audry p veterinary nurse oasis veterinary hospital
    Audrey P, RVT
    Veterinary Technician

    A graduate from Carrington College, Audrey has lived most of her life in Vallejo with a passion and love for animals. Growing up, she always aspired to work in a veterinary hospital and is happy to share her passion with like minded people and help care for companion animals. 


  • elizabeth m veterinary nurse oasis veterinary hospital
    Elizabeth M, RVT
    Veterinary Technician

    Elizabeth started working in the veterinary field at age 19. She also holds a BA in Psychology. She is passionate about connecting with patients in a way that builds trust, so treatments can be completed with the least amount of stress possible. She also loves celebrating the personalities of all the animals she meets, finding what makes each of them special.

    Elizabeth likes to spend her free time with her husband and daughter, along with their many pets. Some of her favorite activities include enjoying the California beaches and redwoods, doing just about anything that involves animals, volunteering, playing video games, wine tasting, listening to good music, and hanging out with friends.

  • karalyn o veterinary nurse oasis veterinary hospital
    Karalyn W, RVT
    Veterinary Technician

    Bio coming soon.

  • paula s veterinary nurse oasis veterinary hospital
    Paula S, RVT
    Veterinary Technician

    Bio coming soon.

  • mei b veterinary assistant oasis veterinary  hospital
    Mei Lin B
    Veterinary Assistant

    As a young child, Mei Lin Bruder grew up watching animal documentaries and veterinary shows. When she grew older, she volunteered at her local animal shelter, demonstrating her dedication to give back to her community and help animals in need.

    In her free time she likes to exercise, go to the beach, hang out with friends, watch  movies, play board games or play with Fergie – the family dog.

  • zoe s veterinary nurse oasis veterinary hospital
    Zoe S
    Veterinary Assistant

    Zoe Sanders grew up into a house full of animals, and knew she was destined to help them. In high school she volunteered at an animal rescue for 2+ years. She is currently a pre-vet student and enjoys the variety of patients she interacts with at Oasis.

    When I’m not at school or working, she loves spending time outdoors in nature or hanging out with her friends, family, and pets.

  • claire s veterinary assistant oasis veterinary hospital
    Claire S
    Veterinary Assistant

    Bio coming soon.

  • cassidy s veterinary assistant oasis veterinary hospital
    Cassidy S
    Veterinary Assistant

    Bio coming soon.

  • rochelle a veterinary assistant oasis veterinary hospital
    Rochelle A
    Veterinary Assistant

    Bio coming soon.

  • nikki p h customer service representative oasis veterinary hospital
    Nikki P-H
    Customer Service Representative

    Nikki grew up in Oakley, California. She has been in the Veterinary field for 19 years the majority spent working with Dr. Asseo.

    Her favorite thing about her job is talking to clients and getting to know them. She loves building those relationships that last for years.

    Nikki spends her time at home with her husband Phil and her 3 kids Philip, Valle, and Adrianna. She also has 3 furry kids named Samuel L. Catson, Colton G. Willikers, and Sox

  • krishna client service representative oasis veterinary hospital
    Krishna T
    Customer Service Representative

    Bio coming soon

  • madeline c customer service representative oasis veterinary hospital
    Madeline C
    Customer Service Representative

    Bio coming soon.

  • brittany c customer service representative oasis veterinary hospital
    Brittany C
    Customer Service Representative

    Bio coming soon

  • miranda c customer service representative oasis veterinary hospital
    Miranda C
    Customer Service Representative

    Bio coming soon.

  • Hitch
    Hitch
    Certified Veterinary Hospital Troll

    Hitch joined the Oasis team as a kitten in August 2017, after 'hitching' a ride to the hospital under the hood of a car. 

    Hitch's primary duties include walking around the back areas of the hospital showing off his obnoxiously large and fluffy tail, stealing bugs from our reptile patients, and lounging on Dr. Asseo's desk on sunny afternoons. 

    In addition, Hitch takes on many of the PR duties for the hospital, through his personal Instagram page at https://www.instagram.com/hitch_thehospitaltroll/

Hours of Operation

Monday

8:00 am - 6:00 pm

Tuesday

8:00 am - 6:00 pm

Wednesday

8:00 am - 6:00 pm

Thursday

8:00 am - 6:00 pm

Friday

8:00 am - 6:00 pm

Saturday

Closed

Sunday

Closed

Monday
8:00 am - 6:00 pm
Tuesday
8:00 am - 6:00 pm
Wednesday
8:00 am - 6:00 pm
Thursday
8:00 am - 6:00 pm
Friday
8:00 am - 6:00 pm
Saturday
Closed
Sunday
Closed

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