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Tonya Brown

Tonya Brown Staff Photo
Veterinary Specialist
Internal Medicine
Tonya Brown Staff Photo

At a Glance

Practicing Since:


My Pets:

Nutmeg and Griffin - Dogs
Ryankitty, Maverick and Popcorn - Cats
Dr. Tonya E. Brown (previously Boyle) grew up on the Seacoast in southern Maine, and attained her veterinary degree from the UW-Madison School of Veterinary Medicine. She completed a competitive small animal rotating internship at The Animal Medical Center in New York City. She then completed a coveted three-year Internal Medicine Residency at North Carolina State University. She passed her exams, had her publication accepted, and became Boarded in Small Animal Internal Medicine. She is honored to be the Chair of the NHVMA Continuing Education committee for her 12th year. 

Dr. Brown is here to help you give your pet the best possible quality of life. She is passionate about diagnosing and managing complicated medical cases in cats and dogs. She specializes in all forms of endocrine disease, including diabetes mellitus, thyroid disease, Cushing's disease, and Addison's disease. She excels at managing patients with complicated multiple disease processes. Dr. Brown's areas of expertise include immune-mediated disease, gastro-intestinal diseases (inflammatory bowel disease), infectious diseases, hepatology, nephrology, and respiratory medicine. She is highly skilled at abdominal ultrasound, non-cardiogenic thoracic ultrasound, and all forms of endoscopy, including foreign body retrieval (gastric, esophageal, tracheal, nasal, urogenital), gastro-intestinal endoscopy, bronchoscopy, rhinoscopy, and cystoscopy. Dr. Brown is proficient at endotracheal tube placement, joint taps, ultrasound-guided aspiration, and bone marrow sampling.
See our departments

Internal Medicine

What Is a Veterinarian Who is Residency Trained in Internal Medicine?

A doctor that is Residency trained in internal medicine is a licensed veterinarian who has obtained intensive, additional training in understanding how your pet's internal body systems function and in diagnosing and treating the many serious diseases that can affect the health of those systems. They will have advanced training in the following disciplines:

  • Endocrinology
  • Cardiology
  • Gastroenterology
  • Hematology (study of the blood)
  • Immunology
  • Infectious Diseases
  • Nephrology/Urology
  • Respiratory Diseases
  • Hepatology (Liver Disease)

While your general practitioner veterinarian can diagnose and treat many health problems, certain diseases and conditions require the care of a doctor who has had specialized, intensive training in internal medicine in order to provide the very best outcome for your pet.

Within the discipline of veterinary internal medicine, there are also veterinarians who specialize further in Small Animal Medicine, Cardiology, Neurology, and Oncology.

Why Does My Pet Need A Doctor That is Residency Trained in Internal Medicine?

Just as your own primary care physician may feel the need to refer you to the care of a specialist from time to time, your general practitioner veterinarian may feel your pet needs a veterinarian with addition training to help diagnose or treat a particularly complicated medical problem. While your general practitioner veterinarian can handle many aspects of your pet's care, just as in human medicine, there is sometimes a need for the attention of a doctor with additional expertise. You can be assured that a veterinarian who knows when to refer you and your pet for more specialized diagnostic work or treatment is one that is caring and committed to ensuring that your pet receives the highest standard of medical care for his or her problem.

While in some cases, your veterinarian may be able to simply consult with a residency trained doctor about your pet's care, in other cases it is necessary to actually refer you and your pet to this doctor for more advanced diagnostics and treatment. Residency trained doctors may also have access to specialized diagnostic or treatment tools that a general practitioner veterinarian may not have.

What Health Problems Does a Veterinarian That is Residency Trained in Internal Medicine Treat?

These doctors are trained to treat the most serious diseases and health problems that affect pets. They are also especially prepared to care for pets that may be facing multiple health problems. Thanks to better health care, more and more pets are living longer lives. As a result, an increasing number of older pets, just like older people, are coping with multiple disease states that can be very difficult to manage. For example, a cat with diabetes may also be suffering from kidney failure, or a dog in heart failure may also be diagnosed with cancer. These veterinarians are uniquely prepared to oversee the care of these complicated cases. In other situations, a younger animal may develop a problem that used to be considered untreatable but is now manageable and perhaps even curable.

Here are some common diseases that frequently lead general practitioner veterinarians and concerned pet owners to seek the expertise of a residency trained veterinarian:

  • Cancer
  • Heart Disease
  • Gastrointestinal Diseases
  • Diabetes Mellitus
  • Immune Related Disorders
  • Kidney Dysfunction
  • Hyperadrenocorticism (Cushing’s disease)
  • Hyperthyroidism
  • Lower Urinary Tract Disease

Will My Regular Veterinarian Still Be Involved?

In many cases, your regular veterinarian will still supervise your pet's veterinary care, especially if your pet is coping with multiple disease states or conditions. In other cases, your referral doctor will take over the majority of your pet's medical care. It depends on your pet's particular disease and health problem.

VCA Capital Area Veterinary Emergency and Specialty

1 Intervale Road

Concord, NH 03301

Main: 603-227-1199

Fax: 603-227-0666

Hospital Hours:

    Mon-Sun: Open 24 hours


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