BACKGROUND: What patients perceive and experience within a patient-centered medical home (PCMH) is an understudied area, and to date, the patient perspective has not been an integral component of existing PCMH measurement standards. However, upcoming guidelines necessitate the use of patient-reported experiences and satisfaction in evaluations of practice and provider performance. OBJECTIVE: To characterize patients' experiences with care after PCMH adoption and their understanding and perceptions of the PCMH model and its key components, and to compare responses by degree of practice-level PCMH adoption and patient race/ethnicity. DESIGN: Qualitative study. PARTICIPANTS: Adult patients with diabetes and/or hypertension (n=48). APPROACH: We surveyed and ranked all PCMH adult primary care practices affiliated with one academic medical center with at least three providers (n=23), using an instrument quantifying the degree of PCMH adoption. We purposively sampled minority and non-minority patients from the four highest-ranked and four lowest-ranked PCMH-adopting practices to determine whether responses varied by degree of PCMH adoption or patient race/ethnicity. We conducted semi-structured telephone interviews with patients about their experiences with care and their perceptions and understanding of key PCMH domains. Interviews were recorded, transcribed, and imported into NVivo 10 for coding and analysis, using a modified grounded theory approach. KEY RESULTS: We found that patients uniformly lacked awareness of the PCMH concept, and the vast majority perceived no PCMH-related structural changes, regardless of the degree of practice-reported PCMH adoption or the patient's race/ethnicity. Despite this lack of awareness, patients overwhelmingly reported positive relationships with their provider and positive overall experiences. CONCLUSIONS: As we continue to redesign primary care delivery with an emphasis on patient experience measures as performance metrics, we need to better understand what, if any, aspects of practice structure relate to patient experience and satisfaction with care.