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The Anesthesia Staffing Shortage and What It Means for GI Centers

Ask any endoscopy center administrator what keeps them up at night and anesthesia coverage will be near the top of the list. The United States is in the middle of a structural anesthesia workforce shortage, and gastroenterology — a specialty built on high daily case volume and deep sedation for nearly every procedure — feels it more acutely than almost any other setting. When an endoscopy suite runs 40 to 60 sedated cases a day across multiple rooms, there is no version of the schedule that works without a reliable anesthesia provider in every room, every day.

GI suites depend on an anesthesia provider in every room, every day — a single gap stops the entire line.

The Numbers Behind the Shortage

The data paints a consistent picture. The Health Resources & Services Administration projects a national shortage of roughly 6,300 anesthesiologists by 2036, and its longer-range modeling puts the gap at 8,450 anesthesiologists by 2037.^1,2 Meanwhile, demand for anesthesia services keeps climbing as procedural volume shifts to ambulatory settings and screening colonoscopy demand grows with the recommended starting age now at 45.

The pipeline is not keeping up. In the 2025 residency Match, roughly 1,805 PGY-1 anesthesiology positions were offered to more than 3,000 applicants — training capacity, not interest, is the bottleneck.¹ At the other end of the career arc, an estimated 56.9% of practicing anesthesiologists are 55 or older, and nearly 22% of all anesthesia providers are projected to leave the workforce by 2033.^1,3

The CRNA workforce — which delivers a large share of GI sedation nationally and roughly 80% of anesthesia care in rural settings — faces its own pressures: about 12% of CRNAs plan to retire by 2027, and 56% report feeling somewhat or very burned out.^1,3 A 2025 American Medical Association report found anesthesiologists had the highest intent-to-leave of any physician specialty, with 40.6% expressing interest in leaving their current role within two years.⁴

Why GI Centers Are Hit Hardest

Hospitals experiencing anesthesia gaps consolidate ORs and triage cases. An endoscopy center cannot. Every case on a GI schedule is sedated, margins per case are thinner than hospital surgical cases, and the economics only work at volume. That combination creates three specific vulnerabilities:

• No internal float pool. Most endoscopy centers contract for exactly the coverage they need. When a provider is out, there is no bench — the room simply closes. (We cover the downstream cost of this in Anesthesia Call-Outs and Lost OR Days.)
• Rising subsidy pressure. The share of ambulatory surgery centers expecting to pay anesthesia stipends jumped from 28% in 2024 to 44% in 2025 — a direct transfer of the shortage’s cost onto facility P&Ls.⁵
• Locums dependence. Facilities plugging gaps with locum tenens providers paid $300–$400 per hour for anesthesiologists in 2025, up from $275–$325 the year before — often for providers unfamiliar with the center’s pace, equipment, and turnover rhythm.⁶

Recruiting, credentialing, and scheduling anesthesia providers is a full-time operational discipline — not a side task for a practice administrator.

The Hidden Costs of Thin Coverage

The visible cost of the shortage is a cancelled block day. The less visible costs accumulate quietly. Centers running on thin coverage tend to schedule conservatively, leaving rooms underused to hedge against a call-out. Physicians absorb schedule compression, running later days that erode satisfaction and referral capacity. And when a revolving cast of unfamiliar locums rotates through, room turnover slows and the operational tempo that makes a GI suite profitable degrades — a dynamic we break down in Endoscopy Scheduling and Throughput.

Patient experience suffers too. Rescheduled procedures mean repeated bowel preps, extra days off work, and — for the meaningful share of patients who were already anxious about the procedure — another chance to opt out of screening entirely, a risk we quantify in Patient Comfort in Colonoscopy.

What a Durable Staffing Model Looks Like

The shortage is not going away; HRSA’s projections extend past 2036. What a GI center can control is its exposure. In our experience building anesthesia teams for endoscopy centers across Dallas–Fort Worth, durable coverage has four characteristics:

• A roster, not a person. Coverage contracted through a group with genuine bench depth, so a sick call is absorbed internally rather than passed to the facility as a cancellation.
• Internalized recruiting and credentialing. The anesthesia partner owns sourcing, vetting, licensure, and facility credentialing on a continuous cycle — so a departure never becomes a coverage cliff.
• GI-specific experience. Providers who know deep sedation for endoscopy, propofol titration for fast wake-ups, and the turnover pace a high-volume suite demands — with the safety infrastructure to match, which we detail in Anesthesia Safety in GI Endoscopy.
• Local ownership. Provider-owned groups whose leaders work in the same market have retention and accountability that national staffing firms struggle to match.

What This Means for Your Next Anesthesia Contract

The shortage has shifted negotiating leverage, and endoscopy centers signing or renewing anesthesia agreements should evaluate more than the rate. Ask how many providers will actually be credentialed at your facility on day one — a contract with one credentialed provider is a single point of failure with a signature on it. Ask who absorbs the cost and the scramble when a provider is out: if the answer involves your administrator making phone calls at 6:00 a.m., the risk hasn’t been transferred, only relabeled. Ask about the group’s recruiting pipeline and turnover history, because a partner who cannot retain providers will eventually hand its retention problem to you. And scrutinize stipend requests against transparent data: legitimate subsidy math is grounded in your actual payer mix and case volume, not in a market-wide scare number.

Centers that get this right treat anesthesia coverage as infrastructure — procured for resilience, not just price. The cheapest coverage that fails one day per quarter is dramatically more expensive than a properly structured partnership, once cancelled cases, staff downtime, and patient attrition are counted.

How Illume Approaches Staffing

Illume Anesthesia was built by practicing providers specifically around this problem. Every GI assignment is backed by a deep roster of board-certified anesthesia providers, with backup built into the assignment itself — redundancy is designed in, not scrambled for. We handle recruitment, credentialing, and scheduling internally, and we deliberately staff continuity: the same providers return to your center, know your equipment, and hold your pace. For most facilities we can build and deploy a dedicated team within 30–60 days, with stop-gap coverage available sooner when a center has an urgent hole in its schedule.