• Emergency Receiving Hours | 24/7
  • Wellness Service Hours | Mon – Thurs | 8:00am–5:00pm
  • Urgent Care Hours | Mon – Thurs | 8:00am–5:00pm
  • Specialty Hours | Mon – Thurs | 8:00am–5:00pm

Internal Medicine Petaluma, CA

Internal Veterinary Medicine

When an illness is complicated or does not respond as expected to initial treatment, your primary care veterinarian may recommend evaluation by an internal medicine veterinarian or veterinary internal medicine specialist. TruVet's Veterinary Internal Medicine service focuses on the diagnosis and long-term management of complex, chronic, or difficult-to-diagnose conditions in dogs and cats.

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Conditions Commonly Managed

Dr. at the clinic

Our team provides internal medicine for dogs and cats, including but not limited to:

  • Gastrointestinal disease, chronic vomiting, or diarrhea
  • Endocrine disorders (diabetes, thyroid disease, Cushing's disease)
  • Kidney and bladder disease
  • Liver disease
  • Immune-mediated and infectious diseases
  • Respiratory disease and chronic coughing
  • Bleeding disorders or anemia
  • Pancreatitis
  • Pituitary disorders
  • Suspected or confirmed cancer
  • Unexplained fever or weight loss
  • Multiple concurrent conditions requiring coordinated care
  • Nutritional support, including feeding tube placement and parenteral nutrition

Our veterinary internists have completed advanced training beyond veterinary school and residency, allowing them to manage complex medical conditions with evidence-based treatment plans.

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Advanced Diagnostics & Procedures

To support accurate diagnosis and targeted treatment, our Internal Medicine team utilizes advanced diagnostic tools, including:


Meet Our Internal Medicine Veterinarian

Internal Medicine care is provided by:

Dr. Freya Kruger

Dr. Freya Kruger, Veterinarian DVM, MS, DACVIM

Internal Medicine

Dr. Freya Kruger is a board-certified internist who grew up in the Central Valley of California and spent much of her youth raising and showing Quarter horses and Holstein replacement heifers.

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Preparing for Your Internal Medicine Appointment

Before your visit, it's helpful to understand what to expect and how to prepare. From medical record coordination and fasting instructions to treatment planning and discharge communication, our team is committed to making the process clear and organized. Learn how to prepare for your appointment and what happens during your pet's visit.

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If Your Pet Requires Hospitalization

When a pet needs to stay in the hospital, clear communication and attentive care matter. Our veterinarians provide 24-hour supervision, daily medical updates, and structured visitation guidelines to keep you informed and supported. Learn what to expect during your pet's hospitalization and how we prioritize safety, comfort, and continuity of care.

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