Internal Medicine

David Burgener, DVM, DACVIM

Special interest – cardiovascular disease, gastroenterology, endoscopic procedures

Board-certified in Small Animal Internal Medicine, American College of Veterinary Internal Medicine

Las Vegas Veterinary Specialty Center, 2006 – present

Las Vegas internal medicine consulting practice, 1990 – present

Small Animal Internal Medicine Specialty Practice, Phoenix AZ, 1988 – 2001

Assistant Professor of Small Animal Medicine, Michigan State University, 1987 – 1988

Residency in Internal Medicine and Oncology, Michigan State University, 1984 – 1987

Internship, Angell Memorial Animal Hospital, Boston, MA, 1981 – 1982

Colorado State University, DVM, 1981

University of Arizona

Nicole Smee, DVM, MS, DACVIM

Special interest – urinary tract disorders. In addition to receiving numerous awards and honors while at Kansas State University, Dr. Smee has published many research papers and taught numerous veterinary courses and lectures.

Las Vegas Veterinary Specialty Center, 2014 to present

Midwest Veterinary Imaging Associates Consultant, 2012 to 2014

VCA Mission, Small Animal Internist and Internship/Externship Coordinator, 2012 to 2013

Kansas State University, Small Animal Internal Medicine Residency and Masters in Clinical Sciences, 2009 to 2012

Veterinary Specialty Center of Lynwood, WA, Small Animal Intern, 2008 to 2009

Kansas State University, Doctor of Veterinary Medicine, 2004 to 2008

Board-certified in Small Animal Internal Medicine, American College of Veterinary Internal Medicine

Diplomate of the ACVIM, Specialty of Small Animal Internal Medicine

Erin McQuinn, DVM, DACVIM-SA

Special interests: diseases of blood cells and bone marrow, endocrinology

Las Vegas Veterinary Specialty Center, 2017 to present

Iowa State University, Small Animal Internal Medicine Resident, 2014 to 2017

Wheat Ridge Animal Hospital, Small Animal Rotating Intern, 2013 to 2014

Colorado State University, Doctor of Veterinary Medicine, 2009 to 2013

Madeline Fujishiro, DVM, DACVIM-SA

Special interests: gastroenterology, endocrinology, feline medicine

Las Vegas Veterinary Specialty Center, 2019 to present

Texas A&M University, Small Animal Internal Medicine Resident, 2016 to 2019

University of Georgia, Small Animal Rotating Intern, 2015 to 2016

Colorado State University, Doctor of Veterinary Medicine, 2011 to 2015

About Our Practice

Our board certified specialists and residency trained doctors in Internal Medicine evaluate, diagnose, and treat many types of internal conditions, often dealing with organ systems related to the upper and lower gastrointestinal tract, endocrine system, liver and respiratory systems, and kidneys and urinary tract.

Our specialists are well equipped to diagnose and manage complicated medical conditions, especially serious and chronic conditions, including:

  • Acute or Chronic Renal Failure
  • Addison’s Disease
  • Bronchitis, chronic cough
  • Diabetes
  • Cushing’s Disease
  • Immune Mediated Hemolytic Anemia
  • Infectious Diseases
  • Inflammatory Bowel Disease
  • Liver Disease
  • Nasal disease
  • Pancreatitis
  • Protein Losing Enteropathy
  • Stones
  • Urinary tract Infections

Part of our rigorous training program includes three years of specialty training in performing advanced diagnostics. With this additional experience, our internal medicine specialists are also skilled in ultrasound, endoscopy and minimally invasive procedures. Not only does this give us the skills to perform testing, but also the experience and education to interpret and manage these chronic medical conditions.

 About Our Service

With board certified and residency trained doctors in Internal Medicine, as well as access to other specialties within LVVSC, we provide a unique service to our clients.  We may see your pet for a specific advanced diagnostic test that we provide or referral may be recommended for difficult to diagnose or manage medical conditions.  We work closely with your general practitioner to evaluate your pet as a whole.  This includes review of all previous records and diagnostics as part of your consultation.

At our facility we house state of the art diagnostic equipment, including digital radiography, ultrasound, endoscopy, laparoscopy, CT and MRI.

Some of the advance diagnostic services we offer include:


–Respiratory tract including the trachea and nasal cavity

–Gastrointestinal endoscopy including upper and lower GI tract

–Urinary tract

*Interventional procedures

–Renal bypass (in cooperation with surgery)

–Tracheal stenting

–Urethral stenting


–Liver biopsy

–Kidney biopsy

–GI biopsy

*Minimally invasive bladder stone removal


This appointment will be different than other appointments you have experienced in the past.  We will be looking through the entire history for your pet as well as performing a complete physical examination.  Most patients are here for a few hours for the initial consultation.  To be prepared for your appointment, please ensure all medical records are forwarded to our facility from all referring practices.  If there were radiographs taken, we will review these as well and they may be emailed to and records can be faxed to (702) 262-7000.  We have a detailed questionnaire that we have you fill out as part of your appointment, including detailed information on any medications, supplements, diets and treats your pet is currently receiving. We recommend that you arrive 15 minutes prior to allow for paperwork.  If an ultrasound is recommended by your primary care doctor, this may be performed in the appointment time prior to speaking with the doctor or we may ask for you to drop your pet off to allow for time to perform additional testing.


Appointments are required.  Patients are seen on a referral basis, Monday through Saturday.  If a more urgent appointment is needed, please speak with someone in the Internal Medicine Department for scheduling.

Please call us with any questions or to schedule your consultation at 702-871-1152

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