Physician Photo

Daniel M. Horn, MD

  • Phone: 617-726-2374
Primary Care
Department of Medicine
Clinical Interests
Primary Care Internal Medicine
Quality of care / quality improvement
Chronic disease management
Primary care practice operations improvement
Boston: Massachusetts General Hospital
Medical Education
MD, SUNY Downstate College of Medicine
Residency, Brigham and Women's Hospital
Board Certifications
Internal Medicine, American Board of Internal Medicine
Foreign Languages
Patient Age Group
Accepting New Patients


Daniel M. Horn, MD is the Assistant Medical Director for AmbulatoryQuality at the Massachusetts General Physician Organization, where he leadsefforts to improve the quality of care for 160,000 patients across 21 primarycare practices. Dr. Horn is also a primary care physician and Unit Chief atInternal Medicine Associates, where he provides comprehensive primary care andhelps with day to day leadership of the largest primary care practices at Mass General. Dr. Horn is board certified in Internal Medicine and is aninstructor at Harvard Medical School. He graduated Columbia University with aB.A. in Religion, and received his M.D. degree at SUNY Downstate College ofMedicine. He completed his residency in primary care and population medicine ata joint program between Brigham and Women?s Hospital, Harvard Vanguard MedicalAssociates, and the Department of Population Medicine at Harvard MedicalSchool. Dr. Horn is trained in various process improvement methodologies and iscertified as an Improvement Advisor by the Institute for Healthcare Improvement.

Internal Medicine Associates Team 1
15 Parkman Street
Boston, MA 02114-3117

Phone: 617-726-2374
Fax: 617-726-4495