Start with the question
Four lenses that should not be collapsed into one number
“Surgical access” can refer to clinician supply, a facility’s capabilities, the training pipeline or the performance of care already delivered. Each lens uses a different unit and answers a different question.
01 · People
Workforce supply
Counts, full-time-equivalent estimates and projections describe clinicians. They do not describe an operating team or an available appointment.
02 · Places
Facility capacity
Certification and facility datasets establish recorded attributes. They do not automatically establish which procedures are currently offered.
03 · Pipeline
Training
Funded resident positions and reported training time are inputs to a future workforce, not counts of new surgeons practicing in a location.
04 · Results
Quality
A defined outcome or experience measure can support comparison within its scope. It is not a universal grade for a facility or proof of access.
Workforce interpretation
Read the assumptions before the projection
HRSA’s physician model documentation describes 36 specialty categories, including 11 surgical categories, with a 2023 baseline and projections through 2038. The output is scenario-based: it depends on definitions of supply, new entrants, attrition, hours worked, population change and expected use of care.
That makes a projection a conditional result, not a forecast for a named hospital. Before comparing two figures, check the specialty, baseline year, time horizon, geography, model version and whether the figure represents people or full-time equivalents. The status quo and reduced-barriers scenarios also answer different questions; neither demonstrates that a local intervention succeeded.
County data adds detail—and new reasons for caution
HRSA’s Area Health Resources Files bring together more than 6,000 variables from more than 60 source families, with county, state and national files. That breadth is useful for describing local context, but it does not make every field directly comparable. Years, specialty definitions, denominators and source organizations can differ across variables.
HRSA’s AHRF methods also warn that county dashboard values and state or national values may come from different sources. County figures therefore do not necessarily sum to the published state or national file. A defensible county analysis preserves the variable label, source, year, geography and suppression or missing-value status alongside every result.
Appropriate use
Describe a dated county indicator, compare consistently defined geographies and identify where more current local verification is needed.
Unsupported shortcut
Treat a workforce count as proof of appointment supply, combine unlike years or reproduce a national total by summing county dashboard values.
Rural and facility evidence
A facility label is a starting point, not a procedure list
Critical Access Hospital certification describes a federal hospital category. CMS states criteria that include distance requirements, no more than 25 inpatient beds, an annual average acute-care stay of 96 hours or less, and 24-hour emergency care seven days a week. These attributes matter for rural delivery systems, but CAH status alone does not establish that a specific surgical service is available today.
CMS interpretive guidance addresses additional requirements when a CAH provides surgical services, including qualified, privileged practitioners and safe performance. The conditional wording matters: it describes what must be true if the service is provided, not evidence that every CAH provides it. Current service lines, staffing, transfer arrangements and scheduling still need local confirmation.
Facility-level CMS datasets add another piece. The Ambulatory Surgical Center Quality Measures dataset provides a table, data dictionary, download and API. CMS also publishes facility-level outpatient and ambulatory surgery patient-experience data for hospital outpatient departments. A facility record can establish inclusion in that dataset and the values of defined measures. It cannot, by itself, establish procedure scope, network status, open appointments or the suitability of a facility for an individual patient.
Training pipeline
Follow the chain from a funded position to a practicing surgeon
Medicare graduate medical education records describe payment and training inputs. CMS’s Direct Graduate Medical Education page explains the payment formula and reports that Section 4122 made 200 additional full-time-equivalent cap slots available beginning in fiscal year 2026, with at least 100 positions reserved for psychiatry or psychiatry subspecialties. The 200-slot total is therefore not a count of surgical positions.
CMS’s Intern and Resident Information System records resident assignment periods used to support cost-report FTE claims and checks for overlapping claims above 100 percent. These records help trace reported training activity. They do not establish graduation, specialty completion, board certification, practice location or retention.
Each arrow requires evidence. Skipping a step converts a policy input into an unsupported workforce claim.
Quality measures need a denominator and a boundary
Quality data belongs beside workforce and facility data, not inside it. A measure may address an outcome, a safety process or patient experience for a defined population and period. Before comparing facilities, verify the care setting, eligible cases, denominator, reporting window, risk adjustment where applicable and the meaning of missing or unavailable results.
The Department of Veterans Affairs publishes patient quality, safety and outcome measures and identifies measures that are unavailable or still developing. Within VA, the National Surgery Office and the Veterans Affairs Surgical Quality Improvement Program use surgical data and risk-adjusted outcomes for quality improvement. This shows how a defined measurement system can support oversight. It does not turn one measure into a complete judgment about a medical center, and it does not establish how quickly a particular patient can obtain care.
| Evidence | Can support | Cannot establish alone |
|---|---|---|
| Workforce projection | Scenario-based supply and demand context | Local appointment access |
| Facility or certification record | Recorded status and defined attributes | Current procedure availability |
| GME record | Funding or reported training activity | Future local surgeon supply |
| Quality measure | A defined result for a defined population | Overall quality or access |
Editorial method
How this desk evaluates a workforce claim
- 1. Open the primary recordUse the responsible federal agency’s documentation, dataset or report rather than a summary headline.
- 2. Fix the date and unitRecord the release, reporting period, geography, population and whether the unit is a person, FTE, facility or measured event.
- 3. State the boundaryWrite what the source measures and what it leaves unmeasured before interpreting the result.
- 4. Add local evidenceUse current local records when the question concerns a community, facility, service line or appointment.
Sources for this guide were checked on August 26, 2026. Dynamic datasets and agency pages should be checked again before relying on their current contents.
Research contributors
Perspectives across health services research
Explore the institute’s contributor profiles for documented expertise that helps readers interpret safety, outcomes, evidence and access questions around surgical workforce policy.
Albert W. Wu, MD, MPH
Patient safety and outcomes research
Professor of Health Policy and Management and Medicine; Director, Johns Hopkins Center for Health Services and Outcomes Research.
Bimal H. Ashar, MD, MBA
General internal and preventive medicine
Professor of Clinical Medicine; clinical leader in the Johns Hopkins Division of General Internal Medicine.
Jodi Segal, MD, MPH
Comparative effectiveness and drug safety
Professor of Medicine; Co-Director, Center for Drug Safety and Effectiveness; Director, Pharmacoepidemiology Program.
Lisa A. Cooper, MD, MPH
Health equity and patient communication
Bloomberg Distinguished Professor; Director, Johns Hopkins Center for Health Equity.
Research index
25 evidence guides for surgical workforce and access
Browse the published research by the question you need to answer. Each guide identifies the source, unit, date and boundary that should remain visible in policy reporting.
Workforce measures
Start with definitions, geography and the assumptions behind counts and projections.
Facilities and rural access
Separate a recorded facility attribute from current procedure availability and referral access.
Training and team capacity
Follow the evidence chain from funded training positions to the clinical team needed for surgery.
Community pathways and preparedness
Read travel, referral, population and disruption evidence without reducing access to one metric.
Quality and research methods
Keep outcomes, patient experience and mapping methods within their stated denominators and limits.
Interactive workforce evidence
Continue into the Surgery Workforce Atlas
Explore the preserved county- and state-level workforce map after reviewing the projection, facility and training-data limits in this desk.