Veterinary Internal Medicine: Helping You to Aid Patients with Complex Conditions

The board-certified internists at Friendship Hospital for Animals work tirelessly with you to diagnose and manage your patients’ most complex and elusive illnesses. With a full-service onsite lab and the latest in advanced imaging, most illnesses can be diagnosed quickly and accurately.

Our internists specialize in minimally invasive diagnostic procedures, including ultrasound-guided fine needle aspiration and biopsy using state-of-the-art technology. If necessary, internists have immediate access to other specialty resources at Friendship. Reports with test results and updates are sent to you the same day, so you’ll know what is going on as soon as we do.

Procedures and Services

  • Abdominal and thoracic ultrasound, including colorflow and vascular studies
  • Endoscopy, colonoscopy, rhinoscopy, bronchoscopy, and cystoscopy
  • Percutaneous biopsies to evaluate liver, kidney, and prostate disease, as well as abdominal, thoracic, or pericardial masses or effusions
  • Placement of PEG tubes to provide nutritional and fluid support in the treatment of hepatic, pharyngeal, esophageal, and renal diseases
  • Removal of esophageal, gastric, nasal, and bronchial foreign bodies
  • Coordination of in-house evaluations and treatments that require multiple specialties including oncology, cardiology, and surgery

Meet Our Doctors

Erick Spencer, DVM, DACVIM

Dr. Spencer is board certified with the American College of Veterinary Internal Medicine with a specialization in small animal internal medicine. Prior to joining the Friendship Hospital for Animals team, Dr. Spencer was a clinical professor at Washington State University, where he developed a broad interest in the field, as well as completed an MS and a residency in small animal medicine. He received his DVM from the Virginia-Maryland Regional College of Veterinary Medicine.


Dr. Foster graduated from the University of Pennsylvania School of Veterinary medicine. After working in small animal private practice, Dr. Foster went on to complete an internship at VCA Norwalk, followed by an internal medicine residency at the University of Wisconsin. Dr. Foster's training is in extracorporeal therapies was achieved through long-distance nephrology fellowship under the mentorship of Dr. Larry Cowgill at UC Davis. For four years, Dr. Foster was faculty at the University of Pennsylvania School of Veterinary Medicine, where he reopened an extracorporeal service providing hemodialysis, hemoperfusion, and plasma exchange.

Contact Dr. Spencer or Dr. Foster