He is conversant in Spanish. Clinical interests for Dr. Buchanan include diabetes, heart problems, and hypertension (high blood pressure). Dr. Buchanan's professional affiliations include Northwestern Memorial Hospital, Northwestern University Feinberg School of Medicine, and Swedish Covenant Hospital. Dr. Buchanan graduated from the University of Chicago, Pritzker School of Medicine. He trained at a hospital affiliated with the University of California, San Francisco (UCSF) for his residency. He accepts Blue Cross/Blue Shield, HFN, Coventry, and more. He is open to new patients.