Inclusion Criteria:  Diagnosed with an active methamphetamine use disorder Is engaged in psychosocial treatment or articulates a plan to engage in psychosocial treatment for methamphetamine use disorder during the study period Age 18 to 60 years Able to consent for treatment and research participation English-speaking  Exclusion Criteria:  Age less than 18 years (TMS not studied in pediatric population) Patients that are excluded during TMS assessment including: patients with epilepsy or seizure disorder, patients with implanted ferromagnetic equipment in their face or skull near the stimulation target. Current medical treatment with clozapine, bupropion, or stimulants. Current diagnosis of bipolar disorder, schizoaffective disorder, schizophrenia, or any other psychotic disorder. Legal or mental incompetency, or inability to consent to study. Unstable medical illness. Current diagnosis of neurological disorder or neurocognitive disorder. Prior neurosurgical procedure. History of seizure. History of ECT treatment within the past three months. History of any previous TMS treatment. Inability to complete the protocol, namely, inability to independently attend all study visits and TMS sessions on time. Prisoner Implanted device including pacemaker, coronary stent, defibrillator, or neurostimulation device that is not MRI-compatible Metal in body including bullets, shrapnel, metal slivers Claustrophobia Uncontrolled high blood pressure Atrial fibrillation Significant heart disease Hemodynamic instability Kidney disease Pregnant (MRI contraindicated during pregnancy) Unable to understand English (behavioral tests of impulsivity are only in English)