A resident physician is a doctor who has graduated from medical school and earned their M.D. or D.O. degree but is completing additional hands-on training in a specific medical specialty. Residents are fully licensed to practice medicine, but they work under the supervision of more experienced doctors called attending physicians. This training period lasts anywhere from two to seven years depending on the specialty.
Where Residents Fit in the Hospital Hierarchy
Hospitals have a clear chain of medical authority, and understanding it helps make sense of who’s who when you receive care. At the top is the attending physician, the doctor with final responsibility for a patient’s treatment. Attendings have completed all their training and often teach the doctors below them. Residents fall in the middle. They’ve finished medical school and hold medical degrees, but they’re still building expertise in their chosen field. At the bottom are medical students, who observe and learn but don’t make independent clinical decisions.
Within residency itself, there’s a further pecking order based on experience level, labeled by “post-graduate year” or PGY. A PGY-1, commonly called an intern, is in their first year out of medical school. Interns can only practice with direct guidance and supervision. As residents advance to PGY-2, PGY-3, and beyond, they take on progressively more complex cases and greater independence. Senior residents often supervise junior ones, creating a layered teaching structure.
What Residents Actually Do Each Day
Resident physicians provide a significant portion of the direct patient care in teaching hospitals. Their daily work includes examining patients at the bedside (individually and during team rounds), ordering and reviewing lab results, writing daily progress notes, coordinating with consulting physicians, calling pharmacies and family members, and completing admission and discharge paperwork. A large chunk of the day also goes to computer-based tasks: entering orders, documenting notes, and pulling up patient histories and test results.
The balance of these tasks shifts as residents gain experience. First-year residents spend more time on documentation, particularly progress notes and discharge summaries. By the third year, residents spend notably more time in discussions with other professionals about patient care, reflecting their growing role in clinical decision-making. Residents also prescribe medications, including controlled substances, using the hospital’s institutional authorization rather than their own personal credentials.
How Long Residency Lasts
Training length depends entirely on the specialty. Primary care fields tend to be shorter, while surgical specialties run longer. According to the American Medical Association, here’s a general breakdown:
- 3 years: Internal medicine, pediatrics, preventive medicine, medical genetics
- 4 to 5 years: General surgery, obstetrics and gynecology, pathology
- 7 years: Neurological surgery
After residency, some physicians pursue even further training through a fellowship, which adds one to three more years of subspecialty focus. A cardiologist, for example, first completes a three-year internal medicine residency, then a cardiology fellowship on top of that.
How Doctors Get Into Residency
The path to becoming a resident runs through a unique system called the Match, administered by the National Resident Matching Program. During their final year of medical school, students apply to residency programs and interview at hospitals across the country. Both students and programs then submit confidential ranked lists of their preferences. A computer algorithm pairs them up, working through each applicant’s list in order and placing them at the highest-ranked program that also ranked them and has an open spot. If a program prefers a new applicant over someone already tentatively placed there, the earlier applicant gets bumped and the algorithm finds them their next best option. Once every list has been processed, all matches become final and binding.
Match Day, when results are announced, is one of the most significant moments in a medical student’s career. It determines not just what they’ll specialize in but where they’ll live and train for the next several years.
Work Hours and Regulations
Residency is famously demanding. The Accreditation Council for Graduate Medical Education (ACGME) sets national rules to prevent unsafe levels of fatigue, though the limits still allow for intense schedules. Residents can work up to 80 hours per week, averaged over four weeks. Individual shifts cannot exceed 24 consecutive hours, with up to four additional hours permitted only for patient handoffs and education, not new patient care. Residents must get at least one full day off per week (averaged over four weeks) and at least 14 hours free after a 24-hour on-call shift.
These caps represent the maximum. Some specialties and programs routinely push close to these limits, while others operate well below them. Before these regulations existed, residents sometimes worked 100-plus hour weeks with 36-hour shifts, so the current rules, while still grueling by most standards, represent a significant improvement in working conditions.
What Residents Earn
Resident pay is modest relative to the hours worked and the level of education required. According to 2025 data from the Association of American Medical Colleges, average annual salaries by training year are:
- Year 1 (intern): $68,166
- Year 2: $70,499
- Year 3: $73,301
- Year 4: $77,593
- Year 5: $81,807
- Year 6: $84,744
- Year 7: $89,187
When you factor in 80-hour weeks, these salaries often work out to less than $20 per hour in the early years. Residents typically carry substantial medical school debt at the same time. Pay increases meaningfully only after residency ends and physicians enter independent practice or join a group as attending physicians.
What This Means if a Resident Treats You
If you’re seen by a resident physician in a hospital or clinic, you’re being cared for by a real doctor with a medical degree and a license to practice. The key difference from an attending is experience, and that gap is bridged by supervision. Attending physicians review resident decisions, co-sign orders, and remain ultimately responsible for your care. In many teaching hospitals, this layered approach means your case gets more eyes on it, not fewer. The resident at your bedside is backed by a senior resident, who is backed by an attending, creating multiple checkpoints before major decisions are made.