About
Dr. Peter Cheng earned his Bachelor of Science in Pharmacy from the University of Maryland, School of Pharmacy in 1983, graduating with High Honor. He then completed his Doctorate of Medicine at the University of Maryland, School of Medicine in 1987. His internship and residency in Internal Medicine both took place at Mercy Medical Center in Baltimore, where he was selected as Chief Resident in 1989-1990. He holds board certification as a Diplomate of the American Board of Internal Medicine and holds membership in the American College of Physicians. In 2024, he joined Johns Hopkins University School of Medicine as an Instructor in Medicine.
Dr. Cheng brings over 30 years of internal medicine experience to his Columbia practice. He is passionate about cardiovascular disease, hypertension, diabetes, thyroid disease, and preventive medicine. He speaks fluent Cantonese and some Mandarin, serving a diverse patient community. He believes in treating each patient with the same care he would give a family member. His approach centers on individualized care plans, open communication, and a relaxed environment. Outside of medicine, he enjoys gardening.
Education & Training
Undergraduate
University of Maryland, School of Pharmacy - Bachelor of Science, Pharmacy, 1983 (Graduated with High Honor)
Medical School
University of Maryland, School of Medicine, Baltimore, MD - Doctorate of Medicine, 1987
Residency
Internal Medicine Residency and Chief Residency, Mercy Medical Center, Baltimore, MD, 1988-1990
Additional Training
Internship, Mercy Medical Center, Baltimore, MD, 1987-1988; Instructor in Medicine, Johns Hopkins University School of Medicine, 2024
Certifications
Languages
English, Cantonese, Mandarin
Conditions Treated
Who is Dr. Cheng right for?
Dr. Cheng is a strong fit for adults who want a board-certified internist focused on prevention and chronic disease. Patients managing cardiovascular disease, hypertension, diabetes, or thyroid conditions benefit most from his clinical expertise. Cantonese- or Mandarin-speaking patients find a physician who communicates with them directly in their language. Those who value same-day access and direct phone contact with their doctor will feel well-served here.
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Frequently Asked Questions
Dr. Cheng focuses on cardiovascular disease, hypertension, diabetes, thyroid disease, and chronic condition management. He also emphasizes preventive medicine and delivers comprehensive health screenings and diagnostic tests to every member. His background in pharmacy and internal medicine gives him a strong foundation for managing complex, multi-condition cases.
Yes, Dr. Cheng holds board certification as a Diplomate of the American Board of Internal Medicine. He also maintains membership in the American College of Physicians.
Dr. Cheng earned his medical degree from the University of Maryland, School of Medicine in 1987. He completed his internship and residency in Internal Medicine at Mercy Medical Center in Baltimore, where the program selected him as Chief Resident in 1989 to 1990.
Yes, Dr. Cheng joined Johns Hopkins University School of Medicine as an Instructor in Medicine in 2024. He combines that academic role with his full-time clinical practice in Columbia, Maryland.
Dr. Cheng speaks fluent Cantonese and some Mandarin. He welcomes patients from Cantonese- and Mandarin-speaking communities into his practice.
Yes, Dr. Cheng sees every patient personally. He does not use nurse practitioners or physician assistants in patient visits. Every appointment is with Dr. Cheng himself.
Dr. Cheng believes in treating each patient with the same care he would give a family member. He builds individualized care plans, prioritizes open communication, and maintains a relaxed environment. His practice philosophy centers on prevention first, with attentive management of chronic conditions.
Dr. Cheng has practiced internal medicine for more than 30 years. He began his career after completing his residency at Mercy Medical Center in 1990 and has built his practice in the Columbia, Maryland area since then.
Doctor profile last updated March 21, 2026