Veterinary Surgeons

Nicholas Macy

DVM, Diplomate, American College of Veterinary Surgeons (DAVCS)

Dr. Macy completed his DVM degree at University of California, Davis. His internship was completed at the Animal Medical Center in New York City, and he then received residency training at Tufts University. Dr. Macy is board-certified in surgery. He has been an owner and practicing veterinarian at Santa Cruz Veterinary Hospital since 1998.

Dr. Macy enjoys scuba diving, traveling, wine tasting, and spending time with his three children and two cats.

Thomas LaHue

DVM, Diplomate, American College of Veterinary Surgery

Dr. LaHue received his Doctorate in Veterinary Medicine from UC Davis in 1982. From 1982-83, he served his internship at Santa Cruz Veterinary Hospital in small animal medicine and surgery. His residency in small animal surgery was completed at both UC Davis and Santa Cruz Veterinary Hospital. He became board certified in 1989. Dr. LaHue performs soft tissue and orthopedic surgery. He has a special interest in respiratory surgery. Dr. LaHue also teaches AP Environmental Science at Aptos High School. He is happily married and has two wonderful sons.

Melissa Arbaugh

DVM Diplomate, American College of Veterinary Surgery

Dr. Arbaugh obtained her Doctorate of Veterinary Medicine from Oregon State University in 2008. She then completed a small animal medicine and surgery internship at Sonora Veterinary Specialists in Phoenix, Arizona. Dr. Arbaugh completed her small animal surgical residency and Master’s degree in Clinical Sciences at Colorado State University in 2012. She became board certified in 2014. Prior to joining PSCVS, Dr. Arbaugh was in private specialty practice in Arizona and the bay area of California. Dr. Arbaugh enjoys all aspects of small animal surgery, but has a particular interest in soft tissue surgery. In her spare time, she enjoys spending time outdoors with family and friends, being at the beach, and watching the antics of her own dogs and cats.

Stephen Kalff


Dr. Kalff completed his veterinary degree at the University of Melbourne in Australia. After several years of general and emergency practice, he completed a surgical internship in Melbourne then moved to the UK for his residency training at Willows Referrals. After becoming a Diplomate and Recognized Specialist with the Royal College of Veterinary Surgeons, Dr. Kalff remained in the UK as a senior orthopedic and spinal surgeon at Fitzpatrick Referrals. Whilst Dr. Kalff has published on numerous topics, his main professional interests include joint replacement, trauma and canine elbow disease. He also enjoys teaching and has been AOVET Faculty since 2015.

Dr. Kalff joined PSCVS in April 2018 after relocating to California. A keen skier, cyclist, and surfer Dr. Kalff is also kept busy with young twins and a rescued terrier cross called Nigel.