Areas of particular interest for Dr. Holbrook include sinusitis (sinus infection), endoscopic sinus surgery, and endoscopic skull base surgery. He is professionally affiliated with Massachusetts General Hospital. Dr. Holbrook takes Blue Cross/Blue Shield, Aetna, and TRICARE, in addition to other insurance carriers. Dr. Holbrook welcomes new patients. He attended medical school at SUNY Upstate Medical University. He completed his residency training at a hospital affiliated with Virginia Commonwealth University (VCU).