The distinction between a physician and a medical resident is often confusing for patients and the public. Many encounter medical professionals in hospitals whose titles suggest they are students, despite the high level of care they provide. Understanding the legal and professional status of a resident physician clarifies this complex stage of medical training. Residency represents the final, intensive phase of education where theoretical knowledge is transformed into specialized clinical skill.
Status of a Resident Physician
A resident is a physician. This status is earned upon graduation from medical school, which confers the Doctor of Medicine (MD) or Doctor of Osteopathic Medicine (DO) degree. The possession of this degree means the individual is a licensed medical professional capable of diagnosing and treating patients. They are often referred to as a physician-in-training, but they are not medical students.
To practice during this period, residents hold a temporary or provisional training license issued by the state medical board. This limited license permits them to practice medicine only within their accredited training program and under the oversight of senior staff. Residents function in a dual capacity, serving as both employees providing patient care and trainees receiving specialized education. Like any practicing doctor, they can be held liable in medical malpractice cases, reinforcing their legal standing as physicians.
Understanding the Medical Training Journey
Residency is a mandatory phase in the progression from medical student to fully independent practitioner. Post-graduate medical education begins with the internship year, often referred to as Post-Graduate Year One (PGY-1).
The residency that follows typically lasts between three and seven years, depending on the chosen medical specialty, such as internal medicine or neurosurgery. This program is the core of graduate medical education, providing the physician with broad-based training and clinical experience. Only upon successful completion of an accredited residency program can a physician seek the board certification and full, unrestricted licensure required to practice independently as an Attending Physician.
Roles, Responsibilities, and Supervision
Resident physicians assume a wide range of responsibilities involving direct patient care from the moment they begin training. They are responsible for evaluating patients, obtaining medical histories, performing physical examinations, and developing diagnoses. Residents also manage treatment plans, order diagnostic tests, and perform various medical procedures within their scope of practice.
Despite their active involvement, the resident’s practice is strictly supervised by an Attending Physician. The Attending Physician is a fully licensed, board-certified doctor who holds the final authority and legal responsibility for all patient care decisions. Supervision levels are structured, ranging from direct supervision (attending is physically present) to indirect supervision (attending is immediately available by phone or electronic means). This system ensures residents gain experience while patient safety is maintained through professional oversight.
Progression Through the Residency Program
The structure within residency is defined by the Post-Graduate Year (PGY) system, which functions as a graded scale of responsibility and autonomy. The first year, PGY-1, is known as the intern year and involves broad clinical rotations with intense supervision to develop foundational skills. During this initial phase, the physician-in-training transitions from a student mindset to that of a practicing doctor.
As residents advance to PGY-2, PGY-3, and subsequent years, their roles incorporate greater independence and leadership. Senior residents begin to take on supervisory duties, mentoring and teaching junior residents and medical students. This increasing seniority reflects accumulated clinical judgment, allowing attending physicians to delegate a progressively larger role in patient care decision-making.
Residency vs. Fellowship
After completing residency, a physician is eligible to become an Attending Physician in their chosen specialty, such as pediatrics or general surgery. Residency provides the comprehensive training necessary for general practice in that specialty. Some physicians opt for further training by pursuing a fellowship.
A fellowship is an optional, advanced training program that follows residency and is designed for sub-specialization in a narrower field. For example, a physician who completed an internal medicine residency might pursue a fellowship in cardiology or gastroenterology. Fellowships are generally shorter, often lasting one to three years, and focus on developing deep expertise in a specific area of medicine.
Conclusion
A medical resident is legally and professionally a physician who has completed medical school. They hold a restricted license allowing them to practice medicine under the close guidance of fully licensed attending physicians. Residency is a structured, multi-year phase of intensive, hands-on training. This supervised experience prepares the physician for the responsibilities and independence of practicing medicine without direct oversight.

