Animal Medical Center


Friday: 9am--9pm
Saturday: 9am--9pm
Sunday: 9am--9pm

Meet our Full Team below!

Vet check-up with client and her dog
  • Mon-Thurs: 9am-5pm
  • Friday: 9am-9pm
  • Saturday: 9am-9pm
  • Sunday: 9am-9pm
  • Dr. Hannigan

    Carey Hannigan, DVM

    General Practice, Surgery, Urgent Care

    Dr. Carey Hannigan received her undergraduate degree in Animal Science from California Polytechnic State University. In 1998 she graduated from UC Davis with a Doctor of Veterinary Medicine degree. Her very first position in the veterinary field was right here at Merced Animal Medical Center.

    Prior to returning here full time in the fall of 2016, she practiced at clinics all around the State of California, from Auburn to Central Coast to San Diego.

    Her practice has included small animal and equine animal, but at this time she only sees horses recreationally. Dr. Hannigan has 16 horses, some of whom live right behind our hospital in Merced. She does most of her riding in Atwater.

    Dr. Hannigan has a busy life outside of work with twin sons, 4 cats and 1 dog. Plus those 16 horses!


    Years in Practice:
    Jan 01, 2016
  • Dr. Michael Wenninger

    Michael Wenninger, DVM

    Surgery and Urgent Care

    Dr. Wenninger graduated from the University of Wisconsin School of Veterinary Medicine in 2004. Following graduation he moved to eastern Pennsylvania where he worked at two advanced veterinary hospitals before relocating to his home state of Wisconsin.

    After 7 years in private companion animal and exotics practice, he accepted a position as associate veterinarian at the Fresno Chaffee Zoo and moved to CA.

    While focusing on zoo medicine, Dr. Wenninger wanted to continue seeing companion animal patients and accepted a part-time position at the Animal Medical Center of Merced. Dr. Wenninger enjoys the challenges of veterinary medicine with special interests in surgery, internal medicine and exotic animal medicine.

    Dr. Wenninger resides with his wife Amanda and son Maxwell. Together the Wenninger family has dogs (Remmy, Ginger, Emma), cats (Ratcat and Willie), a blue and gold macaw (BG), a cockatiel (Angel), chickens, and a group of monitor lizards. In his free time, Dr. Wenninger enjoys outdoor activities, visiting zoos, and most of all, spending time with his family.
    Years in Practice:
    Jan 01, 2018
  • Cassandra Tang-Wing, DVM

    General Practice and Urgent Care

    Dr. Tang-Wing received her veterinary degree from St. George’s University, after completing her clinical year at Louisiana State University. She is new to California, starting her veterinary career at Merced Animal Medical Center.

    She enjoys working with companion animals and is interested in small animal and emergency medicine. In particular, she has a special interest for laboratory animal medicine and research and intends to specialize within the field.

    Toronto, Canada has been home for her for many years, and after completing a Biology and Psychology undergraduate degree at the University of Toronto she moved to Grenada to pursue veterinary medicine. She has recently moved to Merced and lives with her fiancé and their dog, Bougie. In her spare time, Dr. Tang-Wing enjoys outdoor activities, going to the gym, travelling and exploring new places and spending time with her family, friends and fur babies. 

    Years in Practice:
    Dec 28, 2018
  • Sergio Iniguez, DVM

    Urgent Care, Surgery, General Practice

    Dr. Iniguez was born and raised in Madera, California. Growing up Dr. Iniguez picked and pruned grapes during school vacations. During his high school years, he had the opportunity to work with Madera native, and bull riding champion legend, Dr. LeTourneau. While working for Dr. LeTourneau, he was influenced and inspired to become a veterinarian. 

    After high school he studied at Loma Linda University and earned an Associate of Science degree in Surgical Technology and a Bachelor of Science degree in Respiratory Therapy. While at Loma Linda University Medical Center he had the opportunity to help human patients with a variety of respiratory conditions. Soon after, he attended Ross University School of Veterinary Medicine and completed his final year at Oklahoma State University. 

    Immediately after completing veterinary school, Dr. Iniguez had the opportunity to teach respiratory therapy students and veterinary technician students. Teaching respiratory therapy students ranged from lectures to supervising students for case studies at many central valley hospitals such as Madera Children’s Hospital to UCSF Medical Center. 

    In his spare time Dr. Iniguez enjoys cycling, playing chess, drinking coffee, spending time with his children, going on veterinary medical missionary trips and looking for the purrfect cat.  Dr. Iniguez enjoys skin allergy cases, dental cases and ultrasound studies. Someday he would like to have a pet themed coffee shop and write a children’s book.

    Years in Practice:
    Apr 04, 2019
  • Erin Paster, DVM Diplomate ACVS

    Board Certified Orthopedic and Soft Tissue Surgeon

    Dr. Paster received her veterinary medical degree from the University of Minnesota in 2001. She then finished a rotating internship at Michigan Veterinary Specialists in 2003.

    Dr. Paster worked at the University of Pennsylvania for 1 1/2 years as a post-doc, where she was involved with canine hip dysplasia research, including the Nestle-Purina life-long study in Laborador Retrievers. She was PennHIP certified in 2003. She also ran the PennHIP clinic at the University of Pennsylvania, educating clients, veterinarians, and dog breeders about PennHIP screening and hip dysplasia. Dr. Paster completed a 3 year surgical residency at UC Davis and became a Diplomate of the American College of Veterinary Surgeons (board-certified surgeon) in 2009.

    She is now a mobile surgeon working through Mobile Surgery Services. She provides surgical services to Animal Medical Center offering orthopedic, soft tissue and neurosurgical procedures and PennHIP evaluations.

    Years in Practice:
    Jan 01, 2014
  • Shannon Lowe

    Hospital Manager

    Shannon has been part of the AMC staff since 2008. She initially worked at our reception desk, but has shown extreme growth by taking on many new roles: first the pharmacy assistant position, then as a technician assistant, Tech Supervisor, Treatment Manager and most recently Hospital Manager. Her wide range of knowledge within the hospital is impressive, but Shannon has found a particular love for Urgent Care medicine and the unexpected challenges it brings with each day!
    Years in Practice:
    Jan 01, 2008
  • Toussaint D, RVT

    Registered Veterinary Technician & Supervisor

    Toussaint joined AMC in 2008. In 2005, he graduated from the Bel-rea Institute in Denver, Colorado with an Associate of Applied Science Degree in Veterinary Technology. Toussaint lives on 10 acres with his wife, daughter, 2 mastiffs, 2 cats, cows and goats. He loves having the pleasure to work with pets and his priority is providing quality nursing care.
    Years in Practice:
    Jan 01, 2008
  • Jenn G, RVT

    Registered Veterinary Technician

    Jenn, since as far back as a child, has known she wanted to be in the veterinary world-- no matter what it was, as long as she was able to help animals in need. She started helping the vets who came out to the ranch to work on the family horses, then took her first actual vet job as a kennel tech, just cleaning kennels. Her interest in learning about the medicine soon grew greater and greater. Her Veterinarian then taught her what it was to be a good tech. From there she used those skills and extended to emergency, ICU and Specialty areas. Throughout those years she attended the MJC vet tech program and then took state boards to become a Registered Veterinary Technician. This was a great accomplishment in her life and she couldn’t be happier! She has now been in the field for 17+ years and would not change it for the world. Jenn currently have 4 cats (Charlie Bucket, Onyx, Donnor, and Gram) and 1 golden retriever mix named Ava.

    Years in Practice:
    Mar 27, 2019
  • Beth N

    Client Services Manager

    Beth has been with Animal Medical Center since 2005. Her experience and knowledge of the hospital help the reception area run smoothly. Beth loves getting to know clients and patients, and especially enjoys watching the puppies and kittens grow through the years. When Beth isn't on the job, she keeps busy with her family, which includes 3 dogs and a cat.
    Years in Practice:
    Jan 01, 2005
  • Sophie

    Sophie S

    Veterinary Technician

    Sophie joined AMC in June of 2016 and currently works the overnight shift as a Veterinary Assistant to our Emergency Care doctors.

    Sophie graduated from SJVC, Fresno with an Associate Degree in Veterinary Technology in 2015. She plans on taking the state and national exams to become an Registered Veterinary Technician. Sophie also plans to get a Bachelor's degree in Business.

    She is the mother of 3 boys, 2 rescue dogs and 1 cat. She has a happy, outgoing and giving personality well suited for client and patient care.

    Her association with animals began at a very early age. When she was young, she used to tell people that she was going to grow up to be as tall as a giraffe!
    Years in Practice:
    Jan 01, 2016
  • Ngoc T.

    Ngoc T

    Veterinarian Assistant

    Ngoc joined AMC in January of 2016. She found her passion for animals when she decided to take an Animal Science course at Merced College. Ngoc graduated from CSU Fresno State in 2015 with her Bachelor's Degree in Animal Science, Pre-Veterinary. She plans to continue her education and pursue her degree in Veterinary Medicine.

    She believes that every animal is special in their own way and that every animal deserves all the proper care in the world.

    On her spare time she likes to read and learn new skills.
    Years in Practice:
    Jan 01, 2016
  • Debby L

    Veterinarian Assistant

    Debby, a long time Merced resident, has been involved with veterinary medicine for a number of years including working at AMC since Dr. Hill bought the practice in 2004. Debby is the proud owner of three rescue dogs and a horse.
    One of her responsibilities is working with laboratory manufacturing representatives to ensure the  necessary accuracy and reliability for the various laboratory machines that are being utilized by the Hospital.  Additionally, she provides policy and procedure training for new Hospital personnel.
    Debby is a consummate professional in working with our clients and the needs of their pets.
    Years in Practice:
    Jan 01, 2004
  • Marlyn

    Marlyn O

    Lead Reception

    Marlyn joined AMC in June of 2016. She started out as a receptionist and is now the Lead Receptionist at AMC. She lived in Massachusetts for many years where she met her husband. They now live in Merced with their 4 children . She has two adopted dogs named Rascal (Boston Terrier Mix) and Emma (Red-Nose Pit Bull Mix).

    Years in Practice:
    Jan 01, 2016
  • Cailyn Y

    Receptionist/Vet Assistant

    Cailyn started working in the veterinary field in 2013, but working with animals and the desire to continue in a lifelong career started when she was a child. She has varied experiences with large and small animals, ranging from horses, cows, goats, cats and dogs. She currently works multiple animal care related jobs, is getting her Bachelor's in Animal Science, and participates competitively with her mare. In her free time (what free time?) she enjoys spending time with her dogs, horse and family.
    Years in Practice:
    Jan 01, 2013
  • Nicole

    Nicole T

    Veterinarian Assistant

    Nicole is another integral member of our staff. She has outstanding knowledge in animal health care and customer service. Nicole attended school to become a veterinary technician and has much practical experience. She plans to attend school again in order to take her RVT certification test and to obtain her A.S. degree in animal science. Nicole also helps by educating the public on patient management and health. Her own experience dealing with personal pets in distress drives her desire to help others. She feels it's a very important role to be a liaison between animals and owners. In her off time, Nicole enjoys spending time with her daughter and adopted “Fur babies”.
    Years in Practice:
    Jan 01, 2016