• Dr.
    Mark Walker
    Internal Medicine

    Dr. Walker’s primary interests include patient diagnosis and management as well as actively contributing to veterinary continuing education. He has lectured in the advanced small animal medicine course at the University of Florida and he presents seminars, lectures and workshops to veterinarians locally and nationally. He received the Small Animal Chapter Prize in Small Animal Medicine from the Australian College of Veterinary Scientists. Dr. Walker is a member of the American Animal Hospital Association, Florida Veterinary Medical Association, Jacksonville Veterinary Medical Association and the Comparative Gastroenterology Society.

    Dr. Walker has a number of journal and proceedings publications. He has authored chapters in the second and third edition of The 5 Minute Veterinary Consult and third edition of Slatter’s Small Animal Surgery textbook. Dr. Walker’s medical interests include cardiology and gastroenterology. Dr. Walker is married to Dr. Olga Walker. They have 5 children, a Staffordshire Bull Terrier named Luna, a Scottish Border Terrier named Fergus, and a DSH cat named Mickey.


    • 2015- present: Capital Veterinary Specialists Jacksonville - Founder
    • 2012-2015: Capital Veterinary Specialists Tallahassee - Founder
    • 1999-2012: Associate North Florida Veterinary Specialist
    • 2001-2004: Research Scientist, Gene Therapy for Anemia (cats) and Pompe’s Disease (human cardiomyopathy), Applied Genetic Technologies Corporation Inc.
    • 1996-1999: Resident, University of Florida
    • 1998: ACVIM Boarded (Small Animal Internal Medicine)
    • 1996: MACVSc (Internal Medicine)
    • 1994-1996: Junior Lecturer, Massey University, New Zealand
    • 1990-1994: Associate and Intern, Rutland House Veterinary Hospital, Liverpool, United Kingdom
    • 1990: MRCVS
  • Dr.
    Brett Darrow DVM, DACVS, CCRP

    Dr. Darrow was born in Iowa and maintains strong ties to his family and blue-collar Midwest roots. After completing his undergraduate studies and working for one year as a chemical engineer, Dr. Darrow realized true fulfillment could come working with animals and enrolled at the University of Wisconsin. After earning his veterinary degree, Dr. Darrow performed a rotating internship followed by one year of general practice medicine in Bremen, Germany and emergency medicine in Ft. Lauderdale, FL. It was while volunteering at several local wildlife rehabilitation centers that Dr. Darrow realized how much he enjoyed the surgical aspects of animal care.

    Dr. Darrow has completed his residency in small animal surgery at the University of Tennessee. His current research lies in 3D printing bone models and surgical guides to improve the accuracy and efficiency of orthopedic surgery. Dr. Darrow has authored several peer-reviewed scientific publications and has lectured nationally on topics ranging from surgical infection control to avian (bird) surgery. He is currently co-authoring a chapter in the newest edition of Small Animal Veterinary Surgery. His professional interests include minimally invasive surgery, wildlife and exotic animal surgery, and complex orthopedic procedures. He is a member of the Veterinary Society of Surgical Oncologists, Veterinary Orthopedic Society, and American Veterinary Medical Association.

    Dr. Darrow is married to Dr. Janina Bartels, and together they look after Emely, a 15-year-old jack Russell terrier. In their free time, they enjoy virtually all outdoor pursuits including camping, mountain-biking, running, snorkeling, fishing, surfing, and snow-boarding. To Dr. Neihaus’ dismay, they are die-hard Packer fans.


    • 2017: Board Certification - American College of Veterinary Surgeons
    • 2017: Associate Surgeon – Capital Veterinary Specialists Jacksonville
    • 2014-2017: Small animal surgery residency – University of Tennessee, Knoxville, TN
    • 2013-2014: Emergency veterinarian – Lauderdale Veterinary Specialists, Ft. Lauderdale, FL
    • 2012-2013: General practice – Tierärtzeliche praxis van Loosen, Bremen, Germany
    • 2011-2012: Rotating internship – VCA Veterinary Care and Referral Center, Albuquerque, NM
    • 2007-2011: Doctor of Veterinary Medicine with Honors – University of Wisconsin, Madison, WI
    • 2000-2005: BSE Chemical engineering – University of Iowa, Iowa City, IA
  • Dr. Fernando Garcia DVM, MS, DACVAA
    Emergency Medicine

    Dr. Fernando Garcia-Pereira is orginally from Brazil.  He came to the United States in 2002 to further his education in Veterinary Medicine after completing his doctoral degree at Sao Paolo State University, College of Veterinary Medicine. He received his specialty board-certification from the American College of Veterinary Anesthesia and Analgesia in 2007.  Dr. Garcia is recognized both nationally and internationally and has nearly 40 peer-reviewed publications. He has received numerous accolades during his teaching career including the Distinguished Teacher Award and SCAVMA Excellence in Teaching Award from Michigan State University. He joined Capital Veterinary Specialists JAX 2019 after spending 14 years (at both Michigan State University and the University of Florida) training veterinary students. 


    • 2012-2019: Assistant Professor and Service Chief of Anesthesia, University of Florida, College of Veterinary Medicine
    • 2009-2012: Anesthesia Section Chief: Michigan State University, College of Veterinary Medicine
    • 2006-2012: Assistant Professor: Michigan State University, College of Veterinary Medicine
    • 2007: Board-Certification: American College of Veterinary Anesthesia and Analgesia
    • 2002-2005: Anesthesia residency: Washington State University, College of Veterinary Medicine
    • 2002-2005: Master of Veterinary Sciences: Washington State University, College of Veterinary Medicine
    • 2005-2006: Rotating Internship: Washington State University, College of Veterinary Medicine
    • 2001-2002: Anesthesia Internship: University of Sao Paolo, College of Veterinary Medicine, Brazil
    • 1996-2001: Doctor of Veterinary Medicine, Sao Paolo State University, College of Veterinary Medicine
  • Dr. Mallory Nebel DVM
    Practice Limited to Internal Medicine

    Dr. Mallory Nebel, DVM is originally from Orlando, Florida. She completed her undergraduate degree at the University of Florida and graduated with Honors with a Bachelor of Science degree in Biology in 2014. She went on and received her Doctorate in Veterinary Medicine at the University of Florida in 2018. She was awarded a Certificate in Veterinary Business and a Certificate in Veterinary Dentistry. Dr. Nebel completed a rotating internship in Small Animal Medicine and Surgery at BluePearl Veterinary Partners in Atlanta, Georgia in 2019. She completed an Internal Medicine Internship at Capital Veterinary Medicine JAX in June 2020.

    Dr. Nebel’s interests lie in Internal Medicine, focusing on Immune-mediated Disorders and Oncology. She plans on pursuing residency training in Veterinary Internal Medicine.

    In her spare time, Dr. Nebel enjoys hiking with her dog, cross fit exercise, horse-back riding, and attending football games. 

  • Dr.
    Matt Parisi DVM
    Emergency Medicine

    Dr. Parisi is originally from Staten Island, NY but has been bouncing around various parts of Florida for the past 23 years. He graduated from the University of Florida College of Veterinary Medicine in 2017 with his Doctorate of Veterinary Medicine.

    Dr. Parisi has a passion for advanced imaging, specifically CT and ultrasound, and hopes to become a boarded specialist in diagnostic imaging in the future. Outside of the clinic, Dr. Parisi enjoys hiking and camping with his cattle dog mix Zebu, diving in the ocean, and driving back roads with the windows down.

  • Dr.
    Corinne Thompson DVM
    Emergency Medicine

    Dr. Thompson is a true native Floridian; born and raised in Leesburg, Florida. She completed her undergraduate studies at Florida State University, and then attended the University of Florida College of Veterinary Medicine and received her Doctorate of Veterinary Medicine in 2018.  During her studies at the University of Florida she was  awarded the Maddie's Professional Certificate in Shelter Medicine.  She has a special interest in Emergency Medicine and high-quality Shelter Medicine. 

    Dr. Thompson and her husband live on a farm (affectionately known as the 'Thompson Zoo') in Newberry, FL with 5 rescue dogs, 4 cats, 3 chickens, and one aquatic turtle. She spends her spare time backpacking, gardening, and taking care of her 'zoo'. 

  • Dr.
    Rick Alleman
    DVM, PhD. Diplomate ABVP & ACVP
    Clinical Pathologist

    Dr. Rick Alleman received his DVM degree from Louisiana State University and practiced companion animal medicine and surgery for 9 years in a private, small animal practice in New Orleans. In 1987, he became board certified as a Diplomate of the American Board of Veterinary Practitioners with a specialty in companion animal practice. He was re-certified in 1997 and 2007. 

    Dr. Alleman completed a residency in Clinical Pathology at the University of Florida and became a Diplomate of the American College of Veterinary Pathologists with a specialty in Clinical Pathology and completed his PhD degree in molecular biology of vector-borne diseases. He is a former Professor, Service Chief, Resident Coordinator and Director of Laboratories at the University of Florida, College of Veterinary Medicine, where he was on faculty for 20 years. He is currently Manager of Lighthouse Veterinary Consultants. He is a consultant and serves on the Advisory Boards for IDEXX Laboratories, Merck Animal Health, and Zoetis.

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