Emergency Service

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Dr. Jeff Nunez graduated from Louisiana State University in 1996. He completed a one year internship at Angel Memorial in Boston which has an annual case load of  45,000 patients. He worked for a year in general practice before becoming an  emergency clinician for a 24 hour referral hospital in 1998. He lives in Orange County with his wife, daughter and two sons.


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Dr. Noelle White  attended the University of Tennessee where she received her  Bachelors and Doctorate of Veterinary Medicine.  Upon graduation, she practiced in an emergency hospital in Virginia for 3 years before joining TVRH in 2003.  Dr. White currently resides with her family in Garner, NC.   She lives with her husband, two children, a Pembroke Welsh corgi 'Manning', a green cheek conure 'Shirley', and numerous parrotlets and finches.


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Dr. German Duran graduated from veterinary school in Colombia, South America where he  initially practiced. He moved to the US in 1998 and worked as a veterinary nurse with a referral practice for 5 years. In 2003 he was certified by the  US Veterinary Board and has practiced emergency medicine since that time.


Kate Hamon TVRH

Dr. Kate Hamon graduated from the University Of Tennessee College Of Veterinary Medicine in 2012. She then moved to Northern California and completed a one year rotating internship in small animal internal medicine, surgery, and emergency medicine at the VCA Sacramento Veterinary Referral Center. She stayed on in the area for another year, doing a mix of general practice and emergency. She has spent most of her life in the Triangle, and so decided to move back, joining the emergency team at TVRH in 2014. She currently resides in Durham with her Plott hound mix, ‘Sadie,’ and English Staffordshire Bull Terrier, ‘Freyja.’

Dr. Bethany Walters is a Chapel Hill native and has lived in the Triangle for most of her life. Her undergraduate degree is in mechanical engineering, but she made the transition to veterinary medicine and could not be happier to be playing with animals every day. She graduated from NCSU College of Veterinary Medicine in 2014 and did two internships, one in small animal medicine and one in exotic animal medicine (she is happy to see whatever species walks/slithers/flies/swims through the door). Dr. Walters is so happy to join Triangle Veterinary Referral Hospitals as an emergency clinician and looks forward to serving you and your pet.

Surgery Service

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Dr. Mike Grafinger graduated from Mississippi State University in 1999. He  completed a one year internship at Animal Medical Center in New York  City which has an annual case load of 50,000 patients and over 90  veterinarians. He practiced general medicine in NYC for one year before joining a North Carolina emergency and referral practice as an emergency  clinician. He completed a surgical residency at NC State Veterinary  School and is one of the few board certified surgeons affiliated with an  emergency clinic in the Durham area. He lives in Raleigh with his wife and three sons.


Cindy Eward surgeon TVRH

Dr. Cindy Eward was born and raised in Ottawa, Canada and graduated from the Ontario Veterinary College in 1996.  Following graduation, she completed an internship in small animal medicine and surgery at the college and a 3 year residency in small animal surgery at the Auburn University College of Veterinary Medicine.  She then spent 3 years working in academia at both the Ontario Veterinary College and Auburn University before moving on to referral and specialty practice.  Dr. Eward's research interests include oncologic surgery and she in often involved in projects with her husband, Will Eward, an orthopedic oncologist and veterinarian at Duke University Medical Center.  Her clinical interests include minimally invasive surgery, oncologic surgery, stent placement as well as the welcome diversity of soft tissue, orthopedic and neurologic surgery.  Dr. Eward lives on a small farm in north Durham with her husband, 3 kids and menagerie of pets.


Dr. Marc Hirshenson grew up in Rockville, Maryland.  He received a BS in Animal Science from the University of Marylandand his DVM from Tufts University. After graduation, Dr. Hirshenson completed a one-year internship in small animal medicine, surgery, and emergency and critical care and a three-year residency in small animal surgery at Cornell University.  He then returned to Maryland where he worked as a staff surgeon at a large specialty referral practice. For the last two and a half years he has served as the Chief of Surgery for a specialty hospital on Long Island.

Although he enjoys all aspects of veterinary surgery, Dr. Hirshenson is particularly interested in surgical oncology, canine stifle disease and repair, elbow disease, and wound reconstruction.  He is proficient in minimally invasive surgical procedures including arthroscopy, cystoscopy, laparoscopy, rhinoscopy and thoracoscopy.

Away from the hospital, Dr. Hirshenson enjoys swimming, spending time outside, traveling or catching an Orioles or Terrapins game.

Internal Medicine Service

Dr. Melissa Chrzanowski TVRH

Dr. Melissa Chrzanowski graduated from the University of Illinois College of Veterinary Medicine in 2010.  Following graduation, she completed a one year small animal rotating internship at the Veterinary Specialty Center in Buffalo Grove, IL.  After her internship, she stayed on at the Veterinary Specialty Center and completed her internal medicine residency in 2014.  She is very excited to be a part of the TVRH team. 

Radiology Service

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Dr. Lisa Woolman graduated from the University of Tennessee College of  Veterinary Medicine in 2004.  She then completed one year of internship  at The University of Pennsylvania in Philadelphia.   Dr. Woolman moved  to the triangle to begin a 4 year residency in Veterinary Diagnostic  Imaging at North Carolina State University in 2005.  She obtained board  certification in her specialty in 2009.  Dr. Woolman provides on-site  in-patient and out-patient imaging services for Triangle Veterinary  Referral Hospital.  She has settled in Chapel Hill with her husband, son, daughter and their pets, 2 dogs and 4 cats.

Cardiology Service

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Dr. Jennifer Myers graduated from the Western College of Veterinary Medicine in Saskatchewan, Canada, in 2008. She then completed a one year small animal rotating internship at Garden State Veterinary Specialists and a one year cardiology internship at Animal Surgical and Emergency Center.  In 2010 she began a combined cardiology residency and masters degree at Colorado State  University.  She lives in Raleigh and has a small mixed breed dog named Bruce.


Dr. Jen Arthur TVRH

Dr. Jennifer Arthur graduated from veterinary school at Ross University in 2004 and completed a general medicine and surgery internship at Kansas State University in 2005.  While completing her Radiation Oncology residency at North Carolina State University in 2006-7 she fell in love with the Triangle area and planned on someday returning.  She spent 6 years in private practice specialty hospitals in Atlanta and then Phoenix before opting to pursue a second residency in Medical Oncology, which will be completed in April 2014.  Dr. Arthur is incredibly excited to return to the Triangle with her fiancée Patrick and fuzzy family members Doofus, Boris, Esmerelda, Maebelle and Abner.