Our Doctors

Our Team of Veterinarians in Waipahu HI

At Waipahu Waikele Pet Hospital, we're animal lovers and companion ourselves. We take your animal's health as seriously as you do and will do our best to see that it is maintained in the best environment possible. Our talented staff in Waipahu is comprised of some of the nation's finest veterinary specialists from a wide range of backgrounds and specialties. All Waipahu Waikele Pet Hospital veterinarians and staff have one thing in common, a sincere love of animals and an earnest desire to see them nurtured and cared for in the best of health.

The Experts in Pet Care!

Dr. Darin K. Hisanaga
Dr. Dawn S. Morikami
Dr. Nicole Y. Nashiro
Dr. Jenny E. Tarr
Dr. Tyrus Watanabe
Dr. Aya Achiu
Dr. Dorene K. Nagamine
Dr. Stephanie M. Dean
Dr. Deanna Wong
Dr. Allison Ong
Dr. Kristen Crabtree
Dr. Shannon Nagasako
Dr. Nicole Y. Nashiro
I was born in Honolulu and grew up on the Leeward side of Oahu. I attended McKinley High School and volunteered at a number of organizations, including the Hawaiian Humane Society, Honolulu Zoo, and Waikiki Aquarium. My undergraduate study was completed at the University of Hawaii at Manoa with a Bachelor of Science in Biology, 
 and I received by Doctor of Veterinary Medicine degree from Colorado State University. In 2005 I completed an internship program at Encina Veterinary Hospital, California. My professional interests include endoscopy, laparoscopy, and Complementary and Alternative Veterinary Medicine, such as acupuncture. I believe integrating Eastern and Western Medicine provides more tools for healing patients.

In my free time I enjoy traveling, reading, and spending time with my family, my shelter dog Maggie, and my 3 legged cat Susie.
Dr. Tyrus Watanabe
 Davis I worked at the Primate Center as a researcher and also volunteered as a veterinary technician at the U.C. Davis Veterinary Hospital. I received my Doctor of Veterinary Medicine degree from Colorado State University. I have a special interest in critical care medicine. My hobbies include golfing and traveling with my friends and family.

I was born on the Big Island of Hawaii. I attended Hilo High School. I received by Bachelor of Science degree in Physiology from U.C. Davis. While studying at U.C. 

Dr. Tyrus Watanabe

Dr. Nicole Y. Nashiro

Dr. Aya Achiu

Dr. Aya Achiu

I was born and raised in Colorado and received both my bachelors degree in Zoology and Doctor of Veterinary Medicine degree from Colorado State University. 
I just recently moved to Hawaii in June 2010 and joined the wonderful team at Waipahu Leeward Veterinary Clinic. My professional interests include oncology, dermatology, and shelter medicine. I have participated in RAVS (Rural Area Veterinary Service) trips to Arizona to provide free spay/neuter clinics to areas in need of veterinary care. In the near future, I would like to volunteer my time helping out with spay/neuter programs at a local humane society to help decrease the amount of stray cats here on Oahu! I believe that animals can provide so much for us humans by being a great companion, friend, and family member. promote preventative medicine in order to help animals share a happy, healthy, and long life with their owners.
Outside of the clinic, I love to play sports such as volleyball, tennis, and softball. I greatly enjoy spending time with Karl, my husband, and his family playing cards or watching movies.
Dr. Shannon Nagasako

Dr. Shannon Nagasako

I was born and raised in Kaneohe and graduated from Lutheran High School in '01. I attended Pacific University in Oregon, where I majored in Exercise Science with a minor in Psychology. After volunteering at the Oregon Humane Society, feeding elephants in Thailand, and working at a private veterinary practice, I have been dedicated to enriching the lives of people through companion animals.
Ultimately, that brought me to complete my Doctorate of Veterinary Medicine at Colorado State University, and I am fortunate to have joined the Waipahu Waikele Pet Hospital family.

My professional interests include soft tissue surgery, ultrasonography and radiology. I also enjoy giving back to the community by volunteering at local shelters and helping decrease pet overpopulation.

In my free time, I enjoy staying active whether it's traveling, hiking, surfing, cycling, playing basketball or flag football. A rat terrier named Jack and cat named Kona are special part of my Ohana.

Dr. Jenny E. Tarr

Dr. Jenny E. Tarr
I am a native of Indiana and moved to Oahu in 2008. I currently live in Kaneohe with my husband Jeff and my Great Dane "Delilah".
I received my bachelor of science degree in Biology from Butler University (Go Bulldogs!) and my Doctorate of Veterinary Medicine from Purdue University. Prior to joining Waipahu Waikele Pet Hospital, I worked as a small animal practitioner in Cincinnati OH, and Kaneohe HI.

I enjoy all aspects of small animal medicine and have a special interest in emergecy and critical care. I am a member of the American Veterinary Medical Association, Hawaii Veterinary Medical Association, and the Honolulu Veterinary Society.

When I'm not working, my favorite activities are running, hiking with friends, and spending time with my husband and pets. Growing up, I can't ever remember a time when I wanted to be anything but a veterinarian. Veterinary medicine is extremely rewarding as it is a career that enables you to serve both animals and people. I am excited to be part of the team at Waipahu Waikele Pet Hospital and look forward to meeting you and your pets soon.

Dr. Allison Ong

I was born in Honolulu and spent the majority of my childhood growing up in sunny Kaimuki. After graduating from Kalani High School, I majored in Animal Science and Zoology at the University of Hawaii. I worked for several years at the University of Hawaii and at Tripler Army Medical Center doing research. 
Dr. Allison Ong
Feeling unfulfilled, I started working as a veterinary technician and realized I wanted to become a veterinarian. This subsequently led me to graduate with my veterinary degree and acupuncture certification from Colorado State University. After vet school, I completed a small animal internship at VCA San Francisco Veterinary Specialists. I worked as a relief veterinarian for several general practices and emergency facilities in the Bay Area before returning home and joining the wonderful team at Waipahu Waikele Pet Hospital.

My professional interests include internal medicine, ophthalmology, and integrative medicine, such as acupuncture and laser therapy. When I am not at work, I enjoy keeping active. You can find me at the gym (usually in a Turbo Kickboxing class), or swimming at the beach. My feathery and fur family include a Zebra Dove named PigPig, a Portuguese Water Dog-mix named Bo, and (pictured here) my grumpy Mini Australian Shepherd named Pickles.
Dr. Nicole Y. Nashiro

Dr. Dawn S. Morikami

I was born and raised on the beautiful windward side of Oahu. After graduating from Castle High School, I attended the University of Hawaii at Manoa where I earned a Bachelor of Science degree in Animal Science. While attending UH,
 I spent some time volunteering at the Hawaiian Humane Society and the Honolulu Zoo veterinary clinics. I then earned my veterinary degree at the Washington State University, School of Veterinary Medicine. Although my main focus was in small animal medicine and surgery, I also have a great interest in exotic medicine. In addition to my rotations at the WSU exotic ward, I also spent some time studying at the University of California at Davis exotic ward and the Wildlife Center of Virginia. Following graduation at WSU in 2002, I joined the Waipahu-Leeward Veterinary Clinic. I see a variety of animals including dogs, cats, small mammals (rabbits, guinea pigs, rodents), and reptiles. Another interest of mine is small animal ultrasonography.

Outside of work, I enjoy spending time with family and friends, going to the movies, the occasional hiking and diving, reading a good book, and of course, attending UH football!
Dr. Stephanie M. Dean

Dr. Stephanie M. Dean

I am a local girl, born and raised on the 'otherside' of the island in Kailua. I attended Punahou School ('00), where I participated in multiple ocean sports.
I attended U.C. San Diego before transferring to the University of Utrecht in The Netherlands, where I graduated in 2005 with a BSc in Biology. During my years in Holland, I volunteered at the local animal shelter caring for the rescued dogs and cats. Still wanting to explore Europe, I attended veterinary school at the University of Edinburgh in Scotland, graduating in 2009. I have many fond memories of my time spent abroad; however, I am happy to be back home in paradise!

I feel honored to be a member of the veterinary profession; and it is my aim to always provide quality care for my patients. My interests lay in small animal preventative medicine, general practice medicine, surgery, and diagnostics including imaging and microscopy.

I have a mixed breed dog, Duchess, that I rescued as a puppy while she was being treated for parvovirus disease. Duchess and I enjoy hiking, running, walking and kayaking together. We also enjoy playing with a ball at the local park. In my leisure time, I enjoy cook-outs with friends and family and participating in a variety of outdoor sports and activities in Waipahu, HI.
Darin K. Hisanaga

Dr. Hisanaga

Dr. Darin K. Hisanaga was born and raised in Pearl City, Hawaii and graduated from Punahou High School and 1985. He completed his bachelors degree in 1987 and received his Doctor of Veterinary Medicine degree in 1991 from Oregon State University.
After graduation Dr. Hisanaga moved back to Hawaii and joined the Waipahu-Leeward Veterinary Clinic. At the time, it was a quaint veterinary clinic situated at the back of the Waipahu Professional Center. The staff consisted of 3 veterinarians and 2 support staff. In 1994 the clinic went through a major renovation and Dr. Hisanaga took over the management of the clinic. Over the years, the clinic has grown to its present size which includes 6 veterinarians, 28 support staff, and triple of the facility size that it started with.
  
Dr. Hisanaga enjoys spending time with his family which includes: his wife Ann, sons Trevor and Tyler, daughter Taylor-Ann, and dogs Feisty, Lucky, and Ally. They can be frequently found at the baseball field, water park, beach, or the one of the local pet stores (believe it or not).
  
Canine reproduction in Waipahu, HI is the specialty field that Dr. Hisanaga spends a lot of his time with in the clinic. As one of our veterinary specialists, he runs the only active canine semen freezing bank in the state of Hawaii. He gets a lot of satisfaction to bring superior canine genetics into the state. Dr. Hisanaga is also able to produce pups out of pets that have passed away many years prior to the use of their frozen semen.
  
When asked the question of why he wanted to become a veterinarian, his reply was: "I wanted to be able to help people through their pets. I feel that becoming a veterinarian has been a great blessing and privilege that I am forever grateful for."
Dr. Dorene K. Nagamine

Dr. Dorene K. Nagamine

Hi. My name is Dorene Nagamine. I was born in California and moved to Hawaii when I was in elementary school. I attended Moanalua High School and graduated in 1990 (Go Menehunes!).
 I then went to the University of Hawaii, where I completed my Bachelor's degree in Animal Sciences (Go Warriors!). Veterinary school was my next educational stepping stone, and I attended Washington State University (Sorry Cougar fans. I was still a Warriors fan at heart). I graduated from WSU in 2002 and worked as a small animal practitioner for eight years before recently joining the Waipahu Leeward Veterinary Clinic.

I'm greatly interested in Internal Medicine, and although I'm allergic to my patients, I wouldn't change my profession for anything. My motto is "a Benadryl a day keeps the allergies and allergists away." I enjoy meeting new and interesting people with their beloved family members. I have four family members that I share with my parents...Kanani, Moki, Peaches and Koa (all of the canine variety). I am married and in my free time love to read, listen to the radio and of course, spend time at the 9th Hawaiian island ... Las Vegas. My husband and I also love to watch television (especially UH football and volleyball games). Although I'm short, I also love to play volleyball and play in a mixed league once a week. I look forward to seeing everyone at the clinic!
Dr. Kristen Crabtree

Dr. Kristen Crabtree

Hello! My name is Kristen Crabtree. It has always been my dream to be a veterinarian. I was born and raised on Oahu and graduated from Moanalua High School. While I was in high school,
 I volunterred at the Hawaiian Humane Society and the Honolulu Zoo. I attended Washington State University in the small town of Pullman, Washington where I obtained Bachelor of Science degrees in Animal Science and Psychology. I loved small town living so much that I chose to stay in Pullman another four years to obtain my Doctorate in Veterinary Medicine. After graduating from veterinary school, I returned to Oahu and worked as a small animal general practitioner for five years before joining the team at Waipahu Waikele Pet Hosiptal.

All aspects of small animal medicine interest me, especially dermatology and internal medicine. I enjoy meeting new people and working with them to provide the best care for their pets and encouraging the human-animal bond. I am a member of the Honolulu Veterinary Society and the American Veterinary Medical Association. Some of my hobbies include reading, running, photography, hiking with friends and learning about cooking. I live a quiet life in Pearl City with my husband and two dogs, Kasha and Onyxia. I look forward to meeting you soon!
Dr. Deanna Wong

Dr. Deanna Wong

Dr. Wong was born and raised on the Windward side of Oahu. She graduated from Iolani School and received a B.S. in Biology with a minor in Zoology from Washington State University. 
 She continued at Washington State University and received her Doctor of Veterinary Medicine in 2007. After graduating, she completed a one-year competitive small animal rotating internship at VCA Sacramento Referral Center in California, where she received further training in soft tissue surgery, neurology, oncology, internal, and emergency medicine. She has since returned home to provide compassionate healthcare for the pets of Oahu.

Deanna enjoys practicing small animal preventative medicine and critical care. She is commited to continuing her education in all areas of medicine. She has a special interest in increasing her knowledge base in holistic care, dentistry, and imaging (ultrasound and endoscopy). Deanna loves spending time with her pets Coney (a black and tan minature dachshund who runs the house) and Kahmir (a fluffy long haired Maine Coon mix). Her hobbies include traveling, watching movies, hiking, cooking, and going to the beach.
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