Does anyone know how to make an appointment with a middle-aged practitioner nicknamed "Cai-tou" at Taipei Underground Mall?

Previously a netizen shared a photo of a partially obscured business card > the only info was Tsai xx (Cai-tou) 0910-071-xxx.....

I heard the practitioner performs a technique called "抓龍筋" (grasping the "dragon tendon").... I really want to try it....