Bridge: Proactive Psychiatry Consultation and Case Management for Patients With Cancer

Patient Inclusion Criteria: * Age ≥ 18 years old; Value \_\_\_\_\_\_ * Verbal fluency in English * Serious mental illness (Schizophrenia spectrum disorder, bipolar disorder, or major depressive disorder with prior psychiatric hospitalization) confirmed by study clinician at consent * Invasive breast, lung, gastrointestinal, or head and neck cancer (suspected or confirmed Stage I-III, or Stage IV cancer that can be treated with curative intent according to judgment by the oncologist.) * Medical, surgical, or radiation oncology consultation at MGH Cancer Center within the past 8 weeks or a referral placed to the MGH Cancer Center and planned or recommended follow-up Patient Exclusion Criteria: * Have cognitive impairment severe enough to interfere with completing brief study assessments or providing informed consent (and does not have a guardian who can provide consent) * Recurrence of the same cancer type Caregiver Participants * Age ≥ 18 years old; Value \_\_\_\_\_\_ * Verbal fluency in English * Identified or confirmed by the patient or guardian as a caregiver * Caregiver may be a relative, friend, or community mental health staff upon whom the patient relies upon for support and who accompanies the patient to medical appointments * The caregiver should either live with the patient or have in-person contact with the patient once per week (on average) * Patient or guardian must provide permission to contact caregiver