An implantable device, comprising: a housing configured to be implanted at least partially within a patient; a memory, coupled to the housing, that stores executable components; circuitry, coupled to the housing, and configured to at least one of obtain sensed physiological data associated with the patient or deliver a therapy to the patient; and a processor, coupled to the housing, that executes the executable components stored in the memory, wherein the executable components comprise: a security component configured to generate security information based on reception of a clinician telemetry session request from a clinician device via a first telemetry communication protocol, the security information comprising a session identifier and a first session key, and the clinician telemetry session request comprising a clinician device identifier associated with the clinician device; and a communication component configured to: activate telemetry communication by the implantable device via a second telemetry communication protocol based on sending the security information to the clinician device using the first telemetry communication protocol; and establish a clinician telemetry session with the clinician device using the second telemetry communication protocol based on determining that a connection request, received via the second telemetry communication protocol, was transmitted by the clinician device based on inclusion of the clinician device identifier in the connection request. a housing configured to be implanted at least partially within a patient; a memory, coupled to the housing, that stores executable components; circuitry, coupled to the housing, and configured to at least one of obtain sensed physiological data associated with the patient or deliver a therapy to the patient; and a processor, coupled to the housing, that executes the executable components stored in the memory, wherein the executable components comprise: a security component configured to generate security information based on reception of a clinician telemetry session request from a clinician device via a first telemetry communication protocol, the security information comprising a session identifier and a first session key, and the clinician telemetry session request comprising a clinician device identifier associated with the clinician device; and a communication component configured to: activate telemetry communication by the implantable device via a second telemetry communication protocol based on sending the security information to the clinician device using the first telemetry communication protocol; and establish a clinician telemetry session with the clinician device using the second telemetry communication protocol based on determining that a connection request, received via the second telemetry communication protocol, was transmitted by the clinician device based on inclusion of the clinician device identifier in the connection request. a security component configured to generate security information based on reception of a clinician telemetry session request from a clinician device via a first telemetry communication protocol, the security information comprising a session identifier and a first session key, and the clinician telemetry session request comprising a clinician device identifier associated with the clinician device; and a communication component configured to: activate telemetry communication by the implantable device via a second telemetry communication protocol based on sending the security information to the clinician device using the first telemetry communication protocol; and establish a clinician telemetry session with the clinician device using the second telemetry communication protocol based on determining that a connection request, received via the second telemetry communication protocol, was transmitted by the clinician device based on inclusion of the clinician device identifier in the connection request. activate telemetry communication by the implantable device via a second telemetry communication protocol based on sending the security information to the clinician device using the first telemetry communication protocol; and establish a clinician telemetry session with the clinician device using the second telemetry communication protocol based on determining that a connection request, received via the second telemetry communication protocol, was transmitted by the clinician device based on inclusion of the clinician device identifier in the connection request.