About one in ten gastroenterologists now practices inside a private equity-backed group. The other nine need a contracting strategy that works in a market where consolidation has already shifted the leverage.
Key Takeaways
- Approximately one in ten gastroenterologists now practices within a private equity-backed group, and the number of GI practices with three to nine physicians has declined 41 percent over the past decade, according to industry tracking data – a consolidation wave that has permanently shifted commercial payer negotiating leverage in many markets.
- Commercial payer contracts for GI should be audited annually for rate-to-procedure match: the contracted rate in the fee schedule must be compared to the rate actually applied on paid claims, because payer adjudication errors and fee schedule misapplication generate underpayments that practices rarely identify without systematic auditing.
- Any consolidation offer – private equity, hospital, or MSO – should be evaluated against a three-scenario financial model: current trajectory, post-consolidation including earn-out and rollover equity assumptions, and the greenfield investment the consolidation proceeds could fund independently.
- The legal and financial due diligence on a consolidation offer is a multi-month process that requires healthcare M&A counsel, a tax advisor experienced with physician practice transactions, and an independent financial model – any buyer pressuring a faster timeline should be treated as a negotiating signal, not a deadline.
The gastroenterology market has consolidated faster than most physician specialties over the past decade. Industry data indicates that the number of GI practices in the three-to-nine physician range has declined roughly 41 percent over ten years, while large practices – those with 500 or more physicians, typically PE-backed platforms – have grown substantially. About one in ten gastroenterologists now practices within a private equity-backed group. KPMG’s Q1 2025 GI physician practice M&A update described continued consolidation activity despite a more cautious deal environment, with platform groups selectively acquiring regional practices that offer geographic or payer-mix expansion rather than volume alone.
That consolidation wave has consequences for the independent GI practices that remain, beyond the existential question of whether to join it. Consolidation concentrates commercial payer negotiating leverage. A PE-backed platform with practices across a major metro market negotiates from a different position than a five-physician independent group – they have more volume to threaten to move, more administrative infrastructure to sustain a dispute, and often a dedicated contract management function that the independent practice cannot match. That structural disadvantage is real, and pretending it is not does not help independent GI practices navigate their contracts more effectively.
What does help is knowing exactly what your contracts say, what they pay relative to what they should pay, and how to use what leverage you have in the negotiation. Independent GI practices in most markets still have meaningful leverage – endoscopy capacity is constrained, GI physicians are difficult to recruit, and payers need access to colonoscopy capacity as much as practices need covered patients. The key is approaching the negotiation with accurate data rather than the hope that last year’s rates were correct.
The Contract Audit: What You Are Probably Missing
The single most reliable near-term revenue improvement for most GI practices is a systematic audit of commercial payer contract compliance. The question being asked is not whether the contracted rate is competitive – it is whether the payer is applying the contracted rate correctly on paid claims. The answer, in a meaningful share of practices, is no.
Payer adjudication errors take several forms. Fee schedule misapplication: the payer’s system applies an older or incorrect rate to a procedure code because the fee schedule update was not implemented on time at contract renewal. Bundling errors: the payer bundles CPT codes that under the contract or CMS policy should be paid separately. Modifier rejection: the payer denies a claim with a modifier (59, 51, 25) that documents separate and distinct services, without applying the appropriate payment logic. And downcoding: the payer pays a lower-complexity E/M than what was billed without generating a denial the practice can appeal, instead just paying less.
Each of those categories produces a payment the practice accepted as correct, because it arrived and the practice does not have a line-by-line payment-versus-contract reconciliation. Building one requires pulling the contract fee schedule, matching it to paid claims by procedure code and payer, and identifying systematic gaps. The work is tedious and data-intensive, which is why it rarely gets done. The practices that do it routinely find 2 to 5 percent of paid claims underpaid by measurable amounts – and in a group billing $3 million annually, that is $60,000 to $150,000 in recoverable underpayments sitting in the prior year’s data.
The payer is not deliberately underpaying most of the time. The system just pays what the system applies, and nobody at the practice checks whether that matches the contract. Most practices find the gap only when they look for it.
Rate Negotiation and What Leverage You Actually Have
Contract rate negotiation in GI is most effective when it is data-driven and positioned around access, quality, and practice sustainability rather than framed as a demand for more money. Payers respond to the argument that current rates are below the cost of sustainable GI access in the market – particularly when that argument is accompanied by documentation of the practice’s utilization patterns, coding accuracy, and prior authorization compliance rates that reduce administrative friction for the payer.
The practical steps: identify which contracts are up for renewal in the next 12 months and flag them for negotiation now, before the automatic renewal date. Pull the trailing 24 months of paid claims for each payer and calculate realized payment per procedure compared to the contracted rate. Identify the procedures where the gap is largest and build the rate request around those specific codes with supporting data. For GI, colonoscopy CPT codes (45378, 45380, 45385) and upper endoscopy codes are the priority because they drive volume and because the differential between Medicare and commercial is where commercial contract rates have the most room to move.
Where practices lose leverage is in the approach. Walking into a renewal conversation with no data, requesting a percentage increase across the board, and accepting the payer’s first counter with minimal pushback is the negotiating posture of a practice that has no alternative. Build the alternative before you sit down: identify the percentage of your covered patients that would face access disruption if you terminated the contract, document the geographic concentration of your GI capacity relative to the payer’s network, and know whether there is a competing GI group that the payer could redirect those patients to. That analysis changes the conversation.
Evaluating a Consolidation Offer
Private equity offers to GI practices typically involve a combination of upfront cash at close, a rollover equity stake in the platform, and an earn-out tied to EBITDA performance over two to five years. Hospital offers typically involve either employment or a management services organization structure where the hospital provides administrative services in exchange for a management fee and referral relationships. Both structures transfer meaningful control in exchange for capital, and both require the same analytical discipline before you sign.
Build three models before you respond to any offer. The first is your current independent trajectory: what does the practice generate in owner distributions over the next five years under a realistic but conservative assumption about volumes, payer rates, and operating costs? The second is the post-consolidation scenario: apply the offer terms, model the earn-out under realistic assumptions (not the buyer’s optimistic ones), apply the dilution on the rollover equity, and project owner income including any compensation guaranteed under the employment component. The third is the alternative investment scenario: if you took the upfront cash and invested it outside the practice, or used it to fund a specific strategic initiative – ASC development, ancillary expansion, additional physician recruitment – what does that trajectory look like?
The comparison of those three models is the decision. Most physician groups do not run it, because the offer arrives at a moment of fatigue or opportunity and the buyer’s banker is ready with a compelling set of assumptions. Those assumptions are not neutral. They were built to make the offer look attractive. Your independent model is the only one built to reflect your actual situation.
From the Field
A six-physician GI group in the Mountain West received an acquisition offer from a regional PE-backed GI platform at what the buyer described as a compelling EBITDA multiple. The group had been informally discussing consolidation for two years and was inclined to accept. Before responding, our fractional CFO engagement built the three-scenario model: the independent trajectory based on actual trailing financials with conservative assumptions, the offer model using the buyer’s terms and independently stress-tested earn-out assumptions, and an alternative-deployment scenario using the offer proceeds to develop an ASC the group had been considering for three years. The analysis found that the buyer’s earn-out assumptions required EBITDA growth of roughly 18 percent per year, which was achievable but not the conservative base case. Under a flat-EBITDA earn-out scenario, the five-year owner income from independence exceeded the offer by a meaningful margin. The group went back with a revised offer structure requesting a higher upfront component and a cap on earn-out variability. The deal closed four months later at terms that were materially better for the sellers. One partner used the analysis to decide not to join the transaction at all and remained independent.
Consulting or Execution for This Work
Payer contract auditing, rate negotiation, and M&A financial modeling are all areas where a consultant can deliver high-quality analysis and a clear plan. If your group has a CFO, a strong administrator, or a managing partner who can execute the negotiation, the consultant model is often the right scope and often the more economical one. We will say so if that is what the situation calls for.
What we more commonly see is a GI group facing a renewal deadline in eight weeks, an acquisition offer with a 45-day response request, and a practice administrator who is simultaneously managing credentialing, running the billing cycle, and handling the day-to-day. In that situation, the analysis does not get done – or it gets done too quickly against the buyer’s timeline by someone who does not know your numbers. A fractional executive engages inside your practice: pulling the actual contract data, building the model in your financial systems, and managing the negotiation calendar so the deadline works for you rather than against you. Before you hire anyone in that role, ask whether they will be working in your systems with your data or delivering a deliverable for your team to execute. Both are real services. Only one is what the name suggests, and the label is unregulated.
The strategic decisions facing independent GI practices in 2026 are not new, but the window for making them from a position of choice is narrowing in markets where consolidation has already run far. Practices that know their contract terms, know their financial model, and have run the consolidation analysis are the ones that get to choose their path. The ones that have not run the numbers find out what their path is when someone else sets the terms.
Sources
- KPMG Corporate Finance, Gastroenterology Physician Practice M&A Industry Update Q1 2025 — https://corporatefinance.kpmg.com/us/en/insights/2025/gastroenterology-physician-practice-m-a-industry-update.html
- Becker’s ASC, The State of Private Equity in GI in 2025 — https://www.beckersasc.com/gastroenterology-and-endoscopy/the-state-of-private-equity-in-gi-in-2025/
- American Gastroenterological Association, CMS Finalizes Payment Policies for 2026 (November 2025) — https://gastro.org/news/cms-finalizes-payment-policies-for-2026/
- ACG, AGA, ASGE, Joint Comment Letter on CY 2026 OPPS/ASC Proposed Rule (September 2025) — https://www.asge.org/docs/default-source/advocacy/09-08-2025-acg-aga-asge-2026-opps-asc-proposed-rule-comment-letter.pdf
More in the Gastroenterology Series
- Endoscopy Center Economics: What GI Groups Need to Know Before They Build or Buy — the financial case for ASC ownership and the numbers to model before you commit.
- Screening Colonoscopy: Coverage Rules, Cost-Sharing Traps, and Scheduling Capacity — how coverage rules and scheduling design determine whether your colonoscopy capacity is actually being used.
- GI Ancillary Services: Pathology, Anesthesia, and Infusion – What Works and What Gets You Audited — how to structure pathology, anesthesia, and infusion revenue without creating compliance exposure.
- Advanced Practice Providers in Gastroenterology: Deploying NPs and PAs Without Losing Money — how to build an APP model in GI that actually covers its own cost and expands physician capacity.