• Mindfulness Training for Primary Care (MPTC) is a primary care adaptation that includes core common Mindfulness-Based Intervention (MBI) elements. MTPC is a referral-based, insurance-reimbursable 8-week group psychotherapy delivered primarily by Patient-Centered Medical Home-integrated behavioral clinicians. MTPC groups are 2 hours long for 8 weeks, with a 7-hour day of silent group practice on a weekend. MTPC also emphasizes psychoeducational skills for self-regulation including a collaborative primary care provider (PCP) action-planning appointment during week 6.

Control arm: Participants receive a 60-minute introduction to mindfulness group plus referral to a list of community mindfulness resources such as private-pay community mindfulness classes, mobile mindfulness applications, books, and online recordings. These participants are added to a 6-month waitlist for a Cambridge Health Alliance (CHA) mindfulness-based intervention group. All participants are scheduled to meet with their primary care provider during week 6 for a collaborative action planning visit.

• MPTC is a primary care adaptation that includes core common Mindfulness-Based Intervention (MBI) elements. MTPC is a referral-based, insurance-reimbursable 8-week group psychotherapy delivered primarily by Patient-Centered Medical Home-integrated behavioral clinicians. MTPC groups are 2 hours long for 8 weeks, with a 7-hour day of silent group practice on a weekend. MTPC also emphasizes psychoeducational skills for self-regulation including a collaborative primary care provider (PCP) action-planning appointment during week 6.

The Perceived Stress Scale (PSS) (10 items) measures the degree to which situations in life are stressful. Items are designed to evaluate how overloaded, unpredictable, and uncontrollable one finds one's life. Each item is scored on a 5 point Likert scale from 0 (Never) to 4 (Very often).

The Patient Reported Outcomes Measurement Information System - Anxiety Short Form 8a (PROMIS-ASF) is an 8-item scale used to assess patient-reported health status for anxiety. PROMIS instruments are funded by the National Institutes of Health (NIH) and used to reliably and validly measure patient-reported outcomes for clinical research and practice. Participants are asked to rate their experience of the item in the past seven days on a 5-point scale from 1 (Never) to 5 (Always). Ratings from baseline will be compared to ratings from 8 Weeks post-baseline.

The Patient Reported Outcomes Measurement Information System - Depression Short Form 8a (PROMIS-DSF) is an 8-item scale used to assess patient-reported health status for depression. PROMIS instruments are funded by the National Institutes of Health (NIH) and used to reliably and validly measure patient-reported outcomes for clinical research and practice. Participants are asked to rate their experience of the item in the past seven days on a 5-point scale from 1 (Never) to 5 (Always). Ratings from baseline will be compared to ratings from 8 Weeks post-baseline.

The Self-Efficacy for Managing Chronic Disease Scale (SECD-6) is a 6-item scale that is used to evaluate a participant's ability to self-manage care for a chronic disease. SECD-6 asks participants to rate their confidence in their own ability to do certain activities, on a scale from 1 (not at all confident) to 10 (totally confident).

The Five Facet Mindfulness Questionnaire (FFMQ) is a 39-item scale that examines five factors that represent aspects of the current empirical conception of mindfulness. These five facets include: "observing, describing, acting with awareness, non-judging of inner experience, and non-reactivity to inner experience." Participants rate their degree of agreement with each of the items on a Likert-type scale ranging from 1 (Never or very rarely true) to 5 (Very often or always true), with higher scores indicating higher experience of mindfulness.

Action Plan Assessment (APA-10) (10 items) - this is a questionnaire to be completed after the PCP Visit, at PT Study Week 6. This 10-item scale evaluates patient behavior in the domains of self-determination, motivation, shared decision-making, and barrier appraisal. Participants are asked to rate their agreement with a statement on a 7-point scale from 1 (Strongly Disagree) to 7 (Strongly Agree).