Radhika Sampat, DO earned a degree of a Doctor of Osteopathic Medicine. Licenses and Affiliations. Radhika Sampat, DO has been registered with the National Provider Identifier database since April 06, 2011, and her NPI number is 1508155854. Book an Appointment. To schedule an appointment with Dr. Radhika Sampat, please call (678) 538-2167..