A subcutaneously implantable device includes a housing, a clip attached to a top side of the housing, an electrode, a prong, and a sensor in the prong. The clip is configured to anchor the device to a muscle, a bone, and/or first tissue. The electrode is configured to contact an organ, a nerve, the first tissue, and/or second tissue. The prong is configured to contact the organ, the nerve, and/or the second tissue. The electrode is positioned on the distal end of the prong. The sensor is operable to sense a physiological parameter and includes a temperature sensor, an accelerometer, a pressure sensor, a proximity sensor, an infrared sensor, an optical sensor, or an ultrasonic sensor. Circuitry in the housing is in electrical communication with the sensor and the electrode and is configured to sense electrical signals, deliver electrical stimulation, and/or to deliver a signal to a drug pump.
