Meet the Team

Dr. Nathaniel Ban

dr-nathaniel-ban.jpg I am originally from South Korea and received my Doctors of Veterinary Medicine (DVM) at Seoul National University on Mar, 2000. I also received Master’s Degree in 2002. Following school, I had worked as a chief of staff at a department of internal medicine of referral animal hospital in Korea for about five years. Since becoming a California licensed veterinarian, I have always made it a priority to keep up with the most up to date medical advances by attending veterinary medical conferences in order to deliver most accurate diagnosis and effective treatment for my patients as well as serving our clients. I also completed an externship at Animal Medical Center in New York, one of the largest postgraduate veterinary medical training hospitals in the United States. I was fortunate to have worked with 28 board-certified veterinarians, 15 interns and 20 residents at three different departments including internal medicine, critical care and emergency as well as soft tissue surgery. It was great and fantastic experience to me and definitely helped me to develop next stage of veterinary medicine.

My professional interest includes internal medicine such as endocrinology, hematology, gastroenterology, dermatology, cardiology, soft tissue surgery, dentistry and all preventive care. Preventive care is the most important veterinary field to keeping our pets healthy and living longer, happier lives. I currently live with my wife, two sons and one dog, Lilly. I love playing baseball and soccer with my children on my day off. I try to work out on a regular basis because I truly believe well balanced lifestyle makes a huge difference in my practice. My goal is to provide the best health care of your pets. I look forward to serving you and your family!

Dr. Shan Huang 

Dr. Huang

Dr Shan Huang grew up in Beijing, China. She went to China Agricultural University for her vet school. After graduation, she worked at the veterinary teaching hospital before moving to the US. She lived in Massachusetts and Louisiana and moved to California in 2017. She loves seeing puppies and kittens as well as senior pets and provides all the care they need. Aside from wellness care, she also likes dentistry and general surgery.

Dr Huang is USDA accredited to make pet international health certificates. She speaks Mandarin and English. In her spare time you may find her hiking or sunbathing at the beach with her little chihuahua.

  • Debbie (Practice Manager)
    I'm born & raised here in Southern California. I ride horses, love animals and spending time with my golden retriever. I've enjoyed working at Roswinn Pet Hospital for 25 years.
  • Alyssa (Veterinary Assistant)
    Alyssa is from the San Fernando Valley and is currently studying to become a registered veterinary technician (RVT) with hopes of graduating in 2017. She loves all animals including reptiles and other exotics. Her hobbies other than animals include singing, acting, swimming, and the occasional shopping at the mall.
  • Angela (Veterinary Assistant)

    She is currently attending CSUN to pursue her Bachelor in Biology and plans on continuing her studies to become a veterinarian. Her hobbies consist of snowboarding, drawing, and enjoying the company of her two dogs, Param and Jinee

  • Isabel (Veterinary Assistant)

    Hello, I am Isabel Kim. I am a student currently attending UC Riverside, pursing a B.S. degree in Biology in interest for veterinary medicine. I have started volunteering at this hospital since 2017 and now officially started working since early 2020. My hobbies include drawing, watching shows on Netflix, listening to music, and playing video games. 

  • Katie (Veterinary Assistant)

    I was born and raised in the LA area, and graduated in July 2020 from CSUN with a Bachelor’s in Biology. I am also a volunteer at the LA Zoo and can usually be found at Muriel’s Ranch with the cute goats and sheep. I plan on being a veterinarian and will be applying to vet schools in the near future. My hobbies include baking, snowboarding, and hiking with Winter, my husky!

  • Joanne (Veterinary Assistant)

    My name is Joanne Palma. I was born and raised in Los Angeles. I received my A.S. in pre-veterinary science at Pierce College in Fall 2020. I’m currently attending Cal Poly San Luis Obispo. I’m majoring in animal science with a minor in microbiology. My goal is to become a veterinarian one day. My interests in the veterinary field include zoo medicine, shelter medicine, or forensics. My hobbies are reading, traveling, hiking with my family and napping with my black cat, Lori.

  • Hannah (Volunteer)

    Hi! I go to Cal Poly SLO, expecting to graduate with an Animal Science B.S. degree in Fall 2021. My life goal is to work in animal welfare. I was a volunteer at the West Valley Animal Shelter and had the opportunity to have educational hands-on experience with a wide range of farm animals in SLO. My hobbies are singing, gaming, drinking boba, playing volleyball, and spending time with my dog Princess and three guinea pigs.

  • Victoria (Volunteer)

    Hello my name is Victoria Herrera and I am currently a college student studying biology to pursue my dream as a veterinarian. I just started volunteering and I enjoy being a part of an amazing team here at Roswinn Pet Hospital. I love spending time with my family, friends, and my dog, Leia. In my free time, I enjoy baking, binge watching Disney+, and reading.

  • Bumblebee (Hospital Cat)

    Bumblebee (AKA Nyangee) is our official Hospital Cat! She was brought to Roswinn in April of 2019 as a stray. She is very friendly, courageous, and love cat treats. Her favorite activities include: jumping on counters for attention, playing with her feather toy, approaching large dogs and lounging on her cat condo. Bumblebee often comes to the front reception area so make sure you say hello!

$15 OFF First Visit for All New Clients!


Office Hours


8:30 AM-6:00 PM


8:30 AM-6:00 PM


8:30 AM-6:00 PM


8:30 AM-6:00 PM


8:30 AM-6:00 PM


8:30 AM-4:00 PM