He offers interpreting services for his patients. Clinical interests for Dr. Mullen include stomach cancer, soft tissue sarcoma, and melanoma. Dr. Mullen is professionally affiliated with Massachusetts General Hospital. He obtained his medical school training at the University of California, Davis, School of Medicine and performed his residency at Massachusetts General Hospital. Blue Cross/Blue Shield, Coventry, and Humana ChoiceCare Network are among the insurance carriers that Dr. Mullen accepts. Dr. Mullen has received distinctions including Phi Beta Kappa and Alpha Omega Alpha Honor Medical Society Partners Outstanding GME Program Director. New patients are welcome to contact his office for an appointment.