Translating Telephonic Diabetes Self-management Support to Primary Care Practice

Inclusion Criteria: * 21 years of age and older * Receiving treatment for diabetes at selected primary care practices throughout New York City * Most recent HbA1c ≥ 7.5% (max 3 months prior to randomization) * Ability to speak and read English or Spanish (or someone in the household who will read to them) * Access to a telephone * Willing to give informed consent to participate and accept random assignment. Exclusion Criteria: * Stated intention to move out of the New York City area during the next year * Mental incapacity (e.g., confusion) evident on first telephone contact by Department of Health staff * Treatment provider deems that the patient is inappropriate for the trial