Our Veterinarians + Staff

  • Doctors
  • Andreas Andreou Andreas Andreou
    Andreas Andreou

    Andreas Andreou

    DVM, Emergency + Critical Care

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    Besides his professional interest in surgery and emergency medicine, Dr. Andreas Andreou also has a passion for avian and exotic medicine. In 2004, he was honored with the Pamela Slack Award, which is presented to the third-year veterinary student who has demonstrated the most outstanding competence and motivation in avian medicine.

    Andreas Andreou

    DVM, Emergency + Critical Care

  • Rodney Ayl Rodney Ayl
    Rodney Ayl

    Rodney Ayl

    BSc, BVSc, MRCVS, Diplomate ACVIM (Oncology) Diplomate ACVR (Radiation Oncology)

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    Born and raised in Zimbabwe, Dr. Rodney Ayl has provided medical and radiation oncology services in the Southern California area since 1991, and has lectured internationally as well as locally in various topics on cancer treatment in domestic animals. He sits on the Medical Advisory Board of the LA Zoo, and has provided consultation services to veterinarians through regional reference laboratories.

    Rodney Ayl

    BSc, BVSc, MRCVS, Diplomate ACVIM (Oncology) Diplomate ACVR (Radiation Oncology)

  • Stephen Bilbrey Stephen Bilbrey
    Stephen Bilbrey

    Stephen Bilbrey

    DVM, MS, Diplomate American College of Veterinary Surgeons

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    Dr. Stephen Bilbrey has received multiple awards for academics and teaching, and has authored numerous scientific papers for veterinary surgery publications and textbooks. As a board-certified surgeon since 1991, his special interests include thoracic, abdominal, oncologic, plastic, and reconstructive surgery.

    Stephen Bilbrey

    DVM, MS, Diplomate American College of Veterinary Surgeons

  • Fred C. Brewer IV Fred C. Brewer IV
    Fred C. Brewer IV

    Fred C. Brewer IV

    DVM, DACVIM (Cardiology)

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    Dr. Fred Brewer is a board certified (American College of Veterinary Internal Medicine) veterinary cardiologist, having received his veterinary degree from Cornell University, followed by a rotating internship, and then a 3-year cardiology residency. He has developed a keen interest in electrophysiology, has extensively studied the canine sinus node, and has published in veterinary medical journals. Additionally, he is experienced in the management of complex arrhythmias and the treatment of refractory heart failure.

    Fred C. Brewer IV

    DVM, DACVIM (Cardiology)

  • Emilie Chaplow Emilie Chaplow
    Emilie Chaplow

    Emilie Chaplow

    VMD, Diplomate American College of Veterinary Internal Medicine

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    Dr. Emilie Chaplow received her Veterinary Medical Doctor degree from the University of Pennsylvania in 2001, and became board certified in 2005. She is skilled in endoscopy, abdominal ultrasound, bone marrow aspirates, feeding tube placement (PEG and E-tube), CSF taps, joint taps, arterial blood gas, and numerous other areas of internal medicine.

    Emilie Chaplow

    VMD, Diplomate American College of Veterinary Internal Medicine

  • Emily Coddon Emily Coddon
    Emily Coddon

    Emily Coddon

    DVM, Emergency + Critical Care

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    Dr. Emily Coddon has a special interest in toxicities, endocrinopathies and autoimmune diseases. She supports Guide Dogs of America, and is an active member of the AVMA and CVMA.

    Emily Coddon

    DVM, Emergency + Critical Care

  • Mickila Collins Mickila Collins
    Mickila Collins

    Mickila Collins

    DVM, Diplomate American College of Veterinary Internal Medicine

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    Dr. Mickila Collins received her Doctor of Veterinary Medicine degree from Ross University in 2005, completing her clinical year at Louisiana State University. After graduation, she completed a one-year rotating internship, followed by an internal medicine internship, both at ASG.

    Mickila Collins

    DVM, Diplomate American College of Veterinary Internal Medicine

  • Elizabeth Craig Elizabeth Craig
    Elizabeth Craig

    Elizabeth Craig

    DVM, Emergency + Critical Care

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    Following her lifelong passion for animals, Dr. Elizabeth Craig become a registered veterinary technician at Charlotte Specialty Emergency Hospital while completing her undergrad studies. Realizing that nursing animals back to health was her life’s calling, she worked at Tuft’s University’s Small Animal ICU in Grafton, Massachusetts for two years post-graduation. She then attended Atlantic Veterinary College of Prince Edward Island, where she received her Doctor of Veterinary Medicine in 2009.

    Elizabeth Craig

    DVM, Emergency + Critical Care

  • Nicole DeNezzo Nicole DeNezzo
    Nicole DeNezzo

    Nicole DeNezzo

    DVM, Emergency + Critical Care

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    Dr. Nicole DeNezzo has special interests in endocrine disease, neurology, and shelter medicine. She received her DVM from Tufts University and is new newest member of ASG’s Emergency + Critical Care team.

    Nicole DeNezzo

    DVM, Emergency + Critical Care

  • Roubina Honarchian Roubina Honarchian
    Roubina Honarchian

    Roubina Honarchian

    DVM, Emergency + Critical Care

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    Dr. Roubina Honarchian’s interest in Emergency and Critical Care springs from her deep-seeded concern for love, justice, and animal neglect. Her specific veterinary areas of interest are extensions of those causes: pathology, shelter medicine, and internal medicine are among the veterinary practices she cares about most.

    Roubina Honarchian

    DVM, Emergency + Critical Care

  • Michael Huber Michael Huber
    Michael Huber

    Michael Huber

    DVM, MS, Diplomate American College of Veterinary Surgeons

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    After Dr. Michael Huber received his Doctor of Veterinary Medicine degree in 1993 from Purdue University, he completed an internship at the University of Minnesota (in small animal medicine, surgery, and emergency medicine), followed by a three-year residency at Auburn University.

    Michael Huber

    DVM, MS, Diplomate American College of Veterinary Surgeons

  • Peggy McMahon Peggy McMahon
    Peggy McMahon

    Peggy McMahon

    DVM, Diplomate American College of Veterinary Emergency + Critical Care

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    After receiving her Doctor of Veterinary Medicine degree with honors from the University of Illinois at Champaign-Urbana in 2011, Dr. McMahon migrated to Los Angeles where she completed both a Small Animal rotating internship as well as a Small Animal Emergency and Critical Care residency at Animal Specialty and Emergency Center. Shortly after joining Animal Specialty Group’s Emergency Team in 2016, she became board certified in veterinary emergency and critical care.

    Peggy McMahon

    DVM, Diplomate American College of Veterinary Emergency + Critical Care

  • Rhonda Schulman Rhonda Schulman
    Rhonda Schulman

    Rhonda Schulman

    DVM, Diplomate American College of Veterinary Internal Medicine

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    Dr. Rhonda Schulman has authored numerous book chapters and journal articles, and has lectured nationally on a variety of medicine topics, most extensively in pulmonology and endocrinology.

    Rhonda Schulman

    DVM, Diplomate American College of Veterinary Internal Medicine

  • Stacey Sullivan Stacey Sullivan
    Stacey Sullivan

    Stacey Sullivan

    DVM, Diplomate American College of Veterinary Internal Medicine (Neurology)

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    Dr. Stacey Sullivan received her Doctor of Veterinary Medicine degree from North Carolina State University in 1993. She moved to Auburn University for her internship, followed by a residency in neurology and neurosurgery at the University of Georgia.

    Stacey Sullivan

    DVM, Diplomate American College of Veterinary Internal Medicine (Neurology)

  • Debra Voulgaris Debra Voulgaris
    Debra Voulgaris

    Debra Voulgaris

    DVM, MA, CVA, CCRP, Cert. Tui-na Practitioner

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    Dr. Debra Voulgaris attended Ross University School of Veterinary Medicine and completed her clinical year at Louisiana State University. After 2 years in general practice, she became extensively trained and board certified in veterinary acupuncture, canine rehabilitation and Tui-na Practice. Dr. Voulgaris currently sits on the IVAS exam committee, which sets standards for acupuncture certification among veterinarians, and is one of the leading veterinarians in her field.

    Debra Voulgaris

    DVM, MA, CVA, CCRP, Cert. Tui-na Practitioner

  • Kirk Wendelburg Kirk Wendelburg
    Kirk Wendelburg

    Kirk Wendelburg

    DVM, Diplomate American College of Veterinary Surgeons

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    Dr. Wendelburg is internationally recognized in veterinary orthopedics and is particularly well known for his collaboration in developing today’s most-used canine total hip replacement implants and procedures. He has authored several presentations involving hip replacement and limb biomechanics.

    Kirk Wendelburg

    DVM, Diplomate American College of Veterinary Surgeons

  • Doctors
  • Jennifer Caruso Jennifer Caruso
    Jennifer Caruso

    Jennifer Caruso

    Office Manager

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    Jennifer started at Animal Specialty Group in 1997 as a receptionist. In 1999, Jennifer furthered her career at Animal Specialty Group as a technician and office assistant. Through her hard work and dedication, in 2001, Jennifer became the office manager at Animal Specialty Group.

    Jennifer Caruso

    Office Manager

    Jennifer Caruso was born and raised in Southern California. She attended Santa Monica College for her degree in Liberal Arts in 1996. Jennifer regularly attends continuing education classes to further her knowledge in the field of veterinary medicine. Jennifer started at Animal Specialty Group in 1997 as a receptionist. In 1999, Jennifer furthered her career at Animal Specialty Group as a technician and office assistant. Through her hard work and dedication, in 2001, Jennifer became the office manager at Animal Specialty Group.

  • Desiree Johnson Desiree Johnson
    Desiree Johnson

    Desiree Johnson

    Head Surgery Technician

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    “I love working at ASG, because first, the patients get the best of care, second, because ASG is a teaching hospital and everyday provides the opportunity to learn something new, and finally, I am admittedly a surgery geek who loves every aspect of the specialty. And with four board certified surgeons, I get to spend my days (and sometimes nights) in the surgery room.”

    Desiree Johnson

    Head Surgery Technician

    Desiree has been a part of the ASG family for nearly four years.

    In 2006, she graduated from California State University Politechnic, Pomona with a Bachelors Degree in Biology. She has been studying and is currently eligible to take the exam to become a Registered Veterinary Technician.

    She has been a technician for fourteen years focusing primarily on her passion, surgery. She says she feels almost as comfortable in the surgery room as she feels sitting in her own living room. She has always had a love for surgery since she was a little girl, and feels blessed to have found that love at an early age.

  • Steven Katz Steven Katz
    Steven Katz

    Steven Katz

    Hospital Administrator

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    As principal of Steven M. Katz, CPA, a public accounting and consulting firm Steven developed a niche for veterinary medicine through his experience with various veterinary clients. He has worked with Animal Specialty Group as a consultant for over 10 years and has held the position of Hospital Administrator since 2005.

    Steven Katz

    Hospital Administrator

    Steven received his BA in Administrative Science with a minor in Finance from The Ohio State University in 1981. After relocating from Ohio to California be became a Certified Public Accountant and worked in public accounting for the national firm of Ernst  & Whinney (currently known as Ernst & Young).

    Steven has held the controller position for both an international real estate investment corporation and a national commercial real estate development entity. Steven is a member of the California Board of Accountancy and the American Institute of CPA’s. As principal of Steven M. Katz, CPA, a public accounting and consulting firm he developed a niche for veterinary medicine through his experience with various veterinary clients.

    He has worked with Animal Specialty Group as a consultant for over 10 years and has held the position of Hospital Administrator since 2005.

    Steven lives in the suburbs of Los Angeles with his wife and two boys who share their house with their two dogs “Cookie” and “Cody” as well as “Lori” their leopard gecko. Steven enjoys spending time with family & friends, traveling, cooking, hiking & cycling.

  • Mary Rattray Mary Rattray
    Mary Rattray

    Mary Rattray

    Head Surgery Technician

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    “For the past 20 years I have proudly been a part of ASG’s beginnings as a one-doctor, mostly mobile surgery practice all the way to the 24-hour, multi-specialty referral hospital it is today. The standard of care and level of skill and expertise is unparalleled.”

    Mary Rattray

    Head Surgery Technician

    Mary was born and raised in upstate New York and from a very young age, she knew she wanted a career taking care of animals.

    She attended State University of New York Agricultural and Technical College at Delhi where she graduated in 1985 with a degree in Veterinary Science Technology. She continued her education with the assistance of a basketball scholarship at St. John Fisher College in Rochester, New York, graduating with a Bachelor of Science.

    After moving to Los Angeles in 1987, she began her career working as an ICU technician and then a surgery technician with Dr. Kirk Wendelburg at another hospital in the city. Mary obtained her California RVT license in 1989. She then followed Dr. Wendelburg in 1991 after he started what was then called Animal Surgical Referral, and has had the privilege of working with him ever since.

    Mary has handled various duties through the years, but her favorite is as an anesthesia/surgery technician.

    Mary shares a home in Burbank with her cats and her hobbies include reading, riding her Harley-Davidson motorcycle, and training for the Los Angeles Marathon. She is active in both the local Chapter of Harley Owners Group and the LA Roadrunners as a pace leader.