Internal Med

Our internists are dedicated to the diagnosis and therapy of diseases involving the internal organs. They employ a multitude of diagnostic services such as ultrasonography (cardiac and abdominal), endoscopy (upper and lower GI, bronchoscopy, rhinoscopy, cystoscopy and vaginoscopy), bone marrow aspirations, x-ray imaging, computed tomography and MRI scans, laparoscopy, and blood pressure evaluations. All disciplines of internal medicine are offered including endocrinology, gastroenterelogy, cardiology, nephrology/urology, oncology, neurology, hematology, as well as respiratory and infectious disease.

Nicole Bennett, DVM, MS

Diplomate, American College of Veterinary Internal Medicine 

Dr. Bennett is an internal medicine specialist at California Veterinary Specialists. She has a special interest in endocrinology, and she is dedicated to state of the art medicine, client communication and patient care.

Dr. Bennett has authored several original research and journal articles as well as topic chapters in a widely used veterinary reference textbook. She has enjoyed working and lecturing in countries such as Morocco, Macedonia and Japan. She has won awards for research lectures and for her commitment to the human animal bond.

Dr. Bennett received a Bachelor of Arts degree with a double major in Philosophy and Biology & Science from Cornell University in 1990. She earned a Doctorate in Veterinary Medicine from Colorado State University in 1999. While working as a general practitioner, Dr. Bennett completed certification training in animal acupuncture which she used to successfully alleviate chronic pain in older arthritic and neurologic patients. In 2004, Dr. Bennett received a Master's degree in Clinical Sciences while completing an internal medicine residency at Colorado State University after which she was awarded Diplomate of the American College of Veterinary Internal Medicine.

Dr. Bennett currently lives with two dogs, three cats, a husband and one beautiful, human boy. 

Donald Krawiec, DVM, PhD

Diplomate, American College of Veterinary Internal Medicine 

Dr. Krawiec is Director of Medicine at CVS. He has more than 25 years of experience in veterinary medicine. During his career, Dr. Krawiec has lectured extensively on numerous topics in internal medicine and has published more than 75 research articles and book chapters. 

Prior to becoming a partner in CVS, Dr. Krawiec was Chief of the Small Animal Medicine Section and a professor at the University of Illinois, School of Veterinary Medicine. 

Dr. Krawiec earned his Doctorate of Veterinary Medicine from Purdue University where he also received a Master's in Pathology. He also holds a Bachelor of Science in Biology from Colorado State University. Dr. Krawiec was awarded board certification by the American College of Veterinary Internal Medicine in 1985, and completed both a rotating internship and a residency in internal medicine at the University of Minnesota. While at the University of Minnesota he also earned a Ph.D. in Immunology with his thesis research involving study on the immune system in dogs.

Gregory Ogilvie, DVM

Diplomate, American College of Veterinary Internal Medicine, Internal Medicine & Oncology

Dr. Ogilvie, who leads CVS oncology services, is considered one of profession's leading experts on veterinarian care and research. 

Prior to joining CVS, Dr. Ogilvie worked to develop new, innovative cancer therapies at the prestigious French medical school, Université François Rabelais in Tours. His time in France was preceded by a 16-year tenure as professor, internist, head of medical oncology and director of the medical oncology research laboratory at Colorado State University. 

In addition to authoring two books, Dr. Ogilvie has been a past winner of the annual Veterinarian of the Year award from both the American Veterinarian Medical Association and the American Animal Hospital Association. He has been awarded $5 million in research grants in the last five years, as well as the first nationally and internationally patented nutritional formula that can be used to control cancer and enhance quality of life. 

Dr. Ogilvie received his Doctorate of Veterinary Medicine from Colorado State University and completed a residency at Tufts University's Angell Memorial Animal Hospital. Dr. Ogilvie is board certified in the specialties of internal medicine and oncology by the American College of Veterinary Internal Medicine. 

More detailed information on Dr. Ogilvie can be found on our 

Michael Sueda, DVM

Diplomate, American College of Veterinary Internal Medicine

Dr. Sueda is a board certified internist with seven years of experience. He has special interests in gastroenterology and respiratory disease, with training in abdominal ultrasonography and interpretation. Born and raised in Hawaii, Dr. Sueda obtained his Doctorate of Veterinary Medicine in 1995 from Colorado State University, graduating with honors. He completed his small animal medicine and surgical internship at Santa Cruz Veterinary Hospital in California in 1996 and then went on to a residency program at the Animal Medical Center (AMC) in New York City. After completing his specialty training in small animal internal medicine in 1998, he remained on staff at the AMC until moving to Colorado in 2000. He was the staff internist at the Veterinary Specialists of Northern Colorado in Loveland, Colorado prior to moving to San Diego.

David Heller, DVM, MS

Diplomate, American College of Veterinary Internal Medicine (Oncology)

Dr. Heller graduated from Ross University School of Veterinary Medicine in 2002. Following graduation he served as an intern for one year in small animal medicine and surgery at the Veterinary Hospital of the University of Pennsylvania.


Thereafter he went on to complete a 3-year residency and master’s program at the University of Illinois, College of Veterinary Medicine. During this intensive 3-year period, Dr. Heller received training in all aspects of companion animal cancer care, including chemotherapy, radiation therapy, and immunotherapy. Upon completion of his residency and examinations, Dr. Heller attained Diplomate status with the American College of Veterinary Internal Medicine (ACVIM).


Dr. Heller joined the team California Veterinary Specialists in 2014 where he cares for pets with cancer, teaches interns, residents and students while actively developing and evaluating new cancer therapies. Dr. Heller is an active lecturer at local and regional meetings and regularly attends national continuing education meetings. Dr. Heller values the relationships that develop between the patient and family, family veterinarian, and specialist. This relationship serves to benefit the patient in many ways.


Outside of work, Dr. Heller enjoys spending time with his wife, also a veterinarian, and his 2 children. In his spare time, he enjoys traveling, snowboarding, practicing yoga and watching live sports. He is a South Florida native but has grown to love and appreciate the natural beauty and climate of his adopted home in Southern California. The Heller family has two canine members at home, Bambi and Thumper, and a Betta fish, Lucky.

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Benjamin Polansky, DVM

Diplomate, American College of Veterinary Internal Medicine

Dr. Polansky has a special interest in immune mediated and gastrointestinal diseases. Dr. Polansky values the human-animal bond and is passionate about preserving and strengthening that bond through medical intervention. He strives to be a great communicator to help educate owners about their pet’s disease process and work with each primary care veterinarian to make informed, collaborative decisions regarding treatment.


Originally from Boston, Dr. Polanksy earned his degree in veterinary medicine from Tufts University. He fell in love with the internal medicine specialty during his internship at Louisiana State University school of veterinary medicine in 2011. Dr. Polansky completed his internal medicine residency at MedVet in Columbus Ohio. He has passed his ACVIM credentialing board exams, and is awaiting publication to complete his Diplomate status.


Dr. Polansky loves the outdoors including running and cycling. He is an avid New England Patriots fan. He is extremely excited to be a part of the CVS Carlsbad team and can’t wait to practice in the sunny beautiful weather of southern California.