About
Michael Bienenfeld, MD brings a rigorous academic foundation and decades of clinical leadership to his internal medicine practice in Cary, NC. He earned his Bachelor of Science from Pennsylvania State University in 1979, graduating summa cum laude and ranking highest in the College of Science. Penn State honored him with the President's Sparks Medal and the Academic Achievement Award. He went on to earn his Doctorate of Medicine from Hahnemann University in Philadelphia in 1983. He completed both his internship and internal medicine residency at Robert Wood Johnson School of Medicine in New Brunswick, NJ, finishing in 1986.
Dr. Bienenfeld holds board certification from the American Board of Internal Medicine, first certified in 1991 and recertified in 2001 and 2011. He also carries certification in Geriatrics, earned in 1994 and recertified in 2003 and 2011, along with SPEX certification. His career includes extensive leadership roles, among them Medical Director at Semper Care Hospital and Forsyth Medical Center, and Director of Kent County Hospice and Home Health. He served as Chief of Internal Medicine at Kent and Queen Anne's Hospital. He guides his practice by three principles drawn from his residency: honesty with patients, presenting options clearly so patients decide for themselves, and offering unwavering support when medicine reaches its limits.
Education & Training
Undergraduate
Pennsylvania State University, University Park Campus, Bachelor of Science 1979, Summa Cum Laude
Medical School
Hahnemann University, Philadelphia, PA - Doctorate of Medicine 1983
Residency
Internal Medicine, Robert Wood Johnson School of Medicine, New Brunswick, NJ 1984-1986
Additional Training
Internship: Robert Wood Johnson School of Medicine, New Brunswick, NJ 1983-1984
Certifications
Who is Dr. Bienenfeld right for?
Dr. Bienenfeld is a strong fit for adults managing chronic conditions such as autoimmune diseases, hypertension, high cholesterol, or type 2 diabetes. Older adults benefit from his geriatric medicine certification and his experience leading long-term care facilities. Patients who want a physician who listens carefully and involves them in every decision will find his approach well-matched to their needs. He also suits adults seeking thorough preventive care through comprehensive annual screenings and a personalized wellness plan.
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Frequently Asked Questions
Dr. Bienenfeld specializes in internal medicine and geriatric medicine. He holds board certifications in both areas, with his geriatrics certification first earned in 1994. He treats adults across a broad range of chronic and acute conditions.
Yes. Dr. Bienenfeld holds board certification from the American Board of Internal Medicine, first certified in 1991 and recertified in 2001 and 2011. He also holds geriatrics board certification, earned in 1994 and recertified in 2003 and 2011. He additionally holds SPEX certification.
Dr. Bienenfeld earned his medical degree from Hahnemann University in Philadelphia in 1983. He completed his internship and internal medicine residency at Robert Wood Johnson School of Medicine in New Brunswick, NJ, finishing his residency in 1986.
Dr. Bienenfeld follows three core principles. He commits to honesty with himself and his patients, even when the truth is difficult. He presents options clearly and lets patients make informed decisions about their own care. When medicine cannot fully solve a problem, he stays present to offer support.
Yes. Dr. Bienenfeld earned his geriatrics board certification in 1994 and has recertified twice since. His career includes serving as Medical Director for long-term care and assisted living facilities, and directing hospice and home health services. He brings deep clinical experience working with older adults.
Dr. Bienenfeld has held numerous leadership positions throughout his career. He served as Medical Director at Semper Care Hospital and Forsyth Medical Center, and as Chief of Internal Medicine at Kent and Queen Anne's Hospital. He also directed Kent County Hospice and Home Health for six years.
Dr. Bienenfeld stays reachable by phone 24 hours a day, seven days a week, including evenings and weekends. Members report reaching him within hours of contacting the office. He personally follows up on test results and urgent matters outside regular office hours.
Dr. Bienenfeld treats a wide range of adult conditions, including chronic illnesses such as type 2 diabetes, hypertension, and high cholesterol. He has particular experience working with patients managing autoimmune diseases and complex multi-system conditions. His preventive focus also means he helps patients stay ahead of health risks before they become serious problems.
Doctor profile last updated April 11, 2026