We're excited to welcome Dr. Dottie Hagler to the Neurology team!

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A veterinary Internal Medicine specialist is a veterinarian who has completed advanced training in internal medicine, (usually a one-year internship and a three-year residency), beyond veterinary college. Essentially, they manage diseases within the body. Thanks to better veterinary 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 with inflammatory bowel may also be diagnosed with a respiratory condition. Internal Medicine specialists are uniquely prepared to oversee the care of these complicated cases. Some conditions treated by specialists include: 


  • Gastrointestinal diseases
  • Hepatic diseases
  • Cardio-pulmonary diseases
  • Renal & urinary tract diseases
  • Endocrine diseases
  • Immune mediated diseases
  • Infectious diseases


The Internal Medicine service provides state-of-the-art care to animals with complex medical conditions and may require specialized diagnostic testing. Some of the Internal Medicine diagnostic tests and procedures commonly performed at Pet Specialists of Austin are:

  • Chemistries
  • Hematology
  • Computed Tomography (CT scan)
  • Endoscopy
  • Rhinoscopy
  • Bronchoscopy
  • Cystoscopy
  • Ultrasound
  • Continuous glucose monitoring
  • Bone marrow biopsy
  • Radiology
  • Arthrocentesis
  • Bronchoalveolar Lavage (BAL)
  • Systolic blood pressure measurement and monitoring
  • Intravenous pyelography and cystogram


Some of the Internal Medicine services performed are:

  • Abdominocentesis
  • Diagnosis and medical management of liver shunts
  • Endoscopic foreign body removal (esophageal, airway, gastric)
  • Esophageal stricture management, including ballooning
  • Supplemental feeding tube placement & management
  • Thoracocentesis
  • IV nutrition (TPN)



Appointments can be made by referral from your primary care veterinarian. At the time of referral, they will be asked to provide copies of previous tests and reports. We also accept referrals directly from pet parents. Our internal medicine appointments are lengthy (usually at least 1-2 hours). This is because we are committed to providing every patient with the best care possible. Upon arrival, the doctor will review referred medical records, take a complete history, and perform a detailed examination of your pet.  The doctor may choose to collaborate with any of the other specialists.  Together with the pet parents, a personalized treatment plan is discussed and determined. We understand that this can be an anxious time for pet parents, and we treat everyone with kindness, sensitivity, and empathy.

Our dedicated staff of doctors and veterinary technicians also work around the clock monitoring, treating, and caring for hospitalized patients. Communication at our hospital is ongoing, with daily updates to the pet parents and referring veterinarian. Upon discharge, a detailed synopsis of every case is sent to the referring veterinarian, along with a copy of the pet’s discharge instructions, laboratory work and image studies.

Our specialty veterinarians are committed to working with you and your family veterinarian to ensure the best care for your pet.

Contact Us

Pet Specialists of Austin


3901 Guadalupe St Austin, TX 78751

Clinic Hours

Emergency Clinic Hours: 24/7 Specialty Service Hours: Mon-Fri* 8 am - 6 pm *Select services