Overview
Teaching Physician Rules are CMS requirements governing how teaching hospitals bill Medicare for services delivered with resident involvement. The rules require that the attending (teaching) physician personally perform or be present for the key portion of services to bill Medicare Part B. Documentation must support the attending's involvement; failure to comply creates False Claims Act exposure. Rules vary by service type — E/M, surgical, diagnostic — with specific documentation requirements for each.
Historical context: Medicare pays teaching hospitals through multiple mechanisms including direct graduate medical education (DGME) and indirect medical education (IME) adjustments. Part B services by attending physicians are paid separately. The teaching physician rules govern Part B billing for services where residents also participate, ensuring Medicare pays for genuine attending involvement rather than resident-only work.
E/M services: For E/M visits involving residents, the teaching physician must be personally present during the key portion of the service — typically the physical examination and/or medical decision-making components. Documentation must identify the teaching physician's personal participation. Acceptable documentation includes either: attending physician's own note describing the attending's direct patient contact (seeing the patient, personally performing exam elements or discussing with patient), OR attestation added to the resident's note indicating the attending saw the patient and agrees with the resident's findings and plan (or notes any additions/disagreements).
Primary Care Exception (PCE): The PCE allows teaching physicians in approved primary care settings to supervise residents without personal presence for certain low-level visits (99201-99203, 99211-99213). The resident performs the visit; the teaching physician supervises. Documentation requirements still apply but are less stringent than full teaching physician rules. PCE is available only for approved primary care GME programs meeting specific CMS criteria.
Surgical services: For surgery involving residents, the teaching surgeon must be present during the key or critical portions of the operative procedure. What constitutes key or critical portions varies by procedure type. For some procedures (major or complex surgery), the teaching surgeon must be present for most of the procedure. For others, presence for specifically-defined critical portions is sufficient. Documentation in the operative note must identify the teaching surgeon's presence during the key portions.
Diagnostic services and interpretations: For diagnostic services (radiology interpretations, EKG interpretations, etc.), the teaching physician must personally perform or review the interpretation. Documentation indicates the teaching physician's interpretation and attestation that the interpretation is the physician's own work. Billing based on resident interpretations without teaching physician review is not permitted.
Specific documentation requirements: Documentation must specifically identify the teaching physician's involvement. Electronic health record systems have developed specific templates supporting teaching physician attestations. Common attestation language includes: "I saw and evaluated the patient with [resident name] and agree with the findings and plan as documented," or "I personally performed the critical portions of the procedure including [specific steps]." Generic attestations ("I agree") without specificity may not survive audit.
PATH audits: CMS conducted a series of Physicians at Teaching Hospitals (PATH) audits in the 1990s and 2000s focused on teaching physician rule compliance. Several teaching hospitals faced substantial settlements for non-compliant billing practices. These audits raised industry attention on teaching physician rule compliance; most academic medical centers implemented systematic compliance programs including standardized attestations, provider education, and ongoing internal audit.
For RCM operations at teaching hospitals, teaching physician rule compliance is both a revenue protection and compliance imperative. Systematic processes address: attestation template deployment in EHRs, provider education on rule requirements, coder review of attestations before billing, internal audit of teaching physician documentation, and remediation when gaps are identified. Non-teaching hospitals don't face these rules but should understand them when referring patients for continued care at teaching hospitals.
Resident-only services: Services performed entirely by residents without teaching physician involvement meeting the rules cannot be billed to Medicare Part B. Teaching hospitals absorb the cost of such services through other funding mechanisms (DGME, IME, institutional budget). Residents can bill their own services in limited specific circumstances (moonlighting outside residency program) but not for work within their training program.
Industry benchmark
CMS teaching physician rules: E/M, surgical, diagnostic specific. PCE: primary care exception for lower-level visits. Historical PATH audits: set compliance expectations.
Worked example
An internal medicine resident sees a hospitalized Medicare patient, documents H&P and plan, discusses with the teaching attending. The teaching attending sees the patient, performs a focused exam, discusses plan with patient and resident, and adds attestation to resident's note: "I saw the patient with Dr. [resident] and personally performed the physical examination. I agree with the history and plan as documented, with addition of daily renal function monitoring given new ACE inhibitor initiation." This documentation supports billing of appropriate E/M level by the teaching physician per CMS rules.
Frequently asked questions — Teaching Physician Rules
What's the Primary Care Exception?
Allows teaching physicians in approved primary care settings to supervise residents without personal presence for certain low-level visits (99201–99203, 99211–99213). Available only for approved primary care GME programs meeting specific CMS criteria.
Can residents bill services alone?
Generally no for services within their residency program. Residents may bill for moonlighting services outside residency. Services within the residency program require teaching physician involvement per the rules for Medicare Part B billing.
What documentation supports teaching physician billing?
Attestation identifying teaching physician's personal participation — either attending's own note or specific attestation added to resident's note indicating the attending saw the patient, performed key exam elements or discussions, and agrees with findings and plan (with any additions).
Disclaimer
This glossary entry is operational reference for revenue-cycle and medical-billing professionals. It is not legal, clinical, or contractual advice. Industry benchmarks cite named public sources where available; always verify against the current guidance from the authority body before relying on a number in a contract, policy, or compliance filing.