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Internal Medicine

Our expertise in diagnosis and treatment of chronic and complex health conditions, combined with compassion and understanding, ensures your pet has access to the best care possible.

Our internal medicine service provides management of patients with complex medical problems, such as diabetes, anemia, hormonal disease, or immune disease. Patients requiring advanced diagnostic testing such as ultrasound or endoscopy also benefit from this service.

Our board certified Small Animal Internal Medicine specialists at PESCM work in conjunction with you and your regular veterinarian to provide the comprehensive care your pet needs. Our Internists have extensive training in all aspects of internal medicine and employ the most sophisticated diagnostic techniques to every case they manage. Each pet is an individual and care, diagnoses and treatment is tailored to meet your needs and those of your pet.

Our hospital has invested in the advanced equipment necessary for treating patients with complex medical problems. We are equipped with Doppler color flow ultrasound, video endoscopy, digital radiography, invasive and non-invasive blood pressure monitors, ventilators, advanced anesthetic monitoring equipment, and a comprehensive in-house laboratory.


Endoscopy is the visual inspection of the interior of various body systems through a small tube containing fiber optics. The endoscope is inserted into an orifice allowing an internist to view inside internal organs. Sometimes the procedure is simply for diagnostic purposes such as collecting biopsy specimens and other times the procedure is used for treatment purposes, such as balloon dilation, stent placement, or removal of a foreign object.

Minimally invasive video scoping techniques offered here include bronchoscopy, colonoscopy, cystoscopy, and rhinoscopy.

Transfusion Medicine

Transfusion medicine consists of determining when a blood transfusion is appropriate, providing the specific type of blood products that are needed, and closely monitoring patient response to transfusion.


  • Hyperadrenocorticism or Hypoadrenocorticism
  • Diabetes
  • Hyperthyroidism or Hypothyroidism
  • Pituitary Disorders


  • Unexplained Weight Loss
  • Acute & Chronic Pancreatitis
  • Acute and Chronic Vomiting/Diarrhea

Hepatology (Diseases of the Liver)

  • Acute Liver Failure
  • Chronically Elevated Liver Values
  • Hepatitis

Immune-mediated Disease

  • Immune-mediated Hemolytic Anemia
  • Immune-mediated Thrombocytopenia
  • Polyarthritis

Infectious Disease

  • Tick borne (Lyme, Ehrichiosis, RMSF, Anaplasmosis)
  • Viral, Fungal, Bacterial

Nephrology/Urology (Kidney and urological Conditions)

  • Acute & Chronic Renal Failure
  • Chronic, Recurrent or Resistent Urinary Tract Infections
  • Incontinence
  • Urolithiasis
Internal Medicine Services

PHONE: 415-456-7372

Meet Our Team

Veterinary Internist

Veterinary Internist

Veterinary Referral Form


901 Francisco Blvd. East
San Rafael, CA 94901


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We are Always Open!

No Appointment Needed
for Emergencies

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