Medical Billing Services: AI Market Discovery Index

Benchmark Summary

athenahealth led the Medical Billing Services benchmark with valid recommendation coverage of 47.6% in August 2026, down from 50.3% in July 2026. The gap to the next closest brand was 11.2 percentage points, with Tebra (Kareo) at 36.4% in August 2026, down from 41.3% in July 2026.

The largest coverage decline belonged to DrChrono, which fell from 28.9% in July 2026 to 20.9% in August 2026. AdvancedMD recorded the next-largest drop, declining from 40.3% in July 2026 to 33.0% in August 2026. No brand recorded a significant coverage increase this month.

Across the two months of the series, the wider trend is mixed. Seven brands moved down within normal month-to-month variation, while two brands moved down beyond normal variation (AdvancedMD and DrChrono). Medusind was the only brand to move up, rising from 0.2% in July 2026 to 0.3% in August 2026, within normal variation.

The benchmark began with 800 prompt-surface observations in each month and produced 588 qualified observations in August 2026 after qualification.

Current Benchmark at a Glance

Qualified surface breadth counts the canonical AI surface families with at least one qualified observation. The six families are ChatGPT, Copilot, Gemini, Perplexity, AI Overviews, and AI Mode.

For the strategic interpretation of this benchmark, read CiteWorks Studio's analysis of How AI Search Is Recommending Medical Billing Services

Research Scope and Qualification

The public benchmark is narrower than the raw collection universe by design.

Brand-level percentages use the qualified observations as the public denominator, not the raw collection. See the AI Market Discovery Methodology.

Current Brand Standings

This table is the primary current-month benchmark view, sorted by valid recommendation coverage.

How to Read the Standings

• Presence rate: Share of qualified observations where the brand is mentioned at all.
• Valid recommendation coverage: Share of qualified observations where the brand appears in a valid recommendation, the primary benchmark metric.
• Top-three rate: Share of qualified observations where the brand is recommended in the top three positions.
• Rank-one rate: Share of qualified observations where the brand is recommended first.
• Net sentiment: Positive minus negative mentions, divided by total mentions. Ranges from -1 to 1.

For formulas and denominator rules, see AI Market Discovery Metric Definitions.

Recommendation Coverage Movement

Largest Decline: DrChrono

DrChrono fell 8.0 percentage points, moving from 28.9% valid recommendation coverage in July 2026 to 20.9% in August 2026, a decline beyond normal month-to-month variation. The brand's presence rate also moved down, from 39.9% in July 2026 to 36.2% in August 2026, though within normal variation. DrChrono recorded 213 present observations in August 2026 and 123 valid recommendations.

Second-Largest Decline: AdvancedMD

AdvancedMD fell 7.3 percentage points, moving from 40.3% valid recommendation coverage in July 2026 to 33.0% in August 2026, beyond normal variation. The brand recorded 318 present observations in August 2026 and 194 valid recommendations. Presence rate moved slightly up from 53.2% in July 2026 to 54.1% in August 2026, within normal variation.

Category Leader: athenahealth

athenahealth remained the category leader with 47.6% valid recommendation coverage in August 2026, down from 50.3% in July 2026, within normal month-to-month variation. The brand's presence rate rose from 89.3% in July 2026 to 91.5% in August 2026, and its rank-one rate moved from 15.2% to 15.7% over the same period.

The remaining brands moved within normal month-to-month variation. Tebra (Kareo) recorded a rank-one rate decline, moving from 12.3% in July 2026 to 8.5% in August 2026. Greenway Health's presence rate moved up from 3.3% in July 2026 to 5.9% in August 2026.

Recommendation Placement Snapshot

Coverage alone does not show how prominently a brand is recommended. Placement rates reveal how often a recommended brand appears at the top of the answer. The following table shows the leading brands by coverage.

Similar top-three rates can still hide different first-position rates. athenahealth led on rank-one placement at 15.7% in August 2026, while AdvancedMD, with a matching top-three rate of 21.1%, reached rank one only 3.2% of the time.

Buyer-Intent Distribution

The qualified observations for August 2026 all fell into the brand recommendation class.

The current public series does not yet contain qualified observations in the pricing and value or multi-brand comparison classes.

Historical Measurement Record

This is an evergreen benchmark URL. New measurements are added to the same report.

Evidence and Source Layer

The benchmark is built from prompt-level observations that retain the query, AI/search surface, answer, brand outcome, recommendation placement, sentiment, and, where exposed, citations or attributable evidence sources. Source presence is evidence about the information environment. It is not automatically proof that the source caused the recommendation.

Scope Boundaries

This public benchmark does not measure market share, attributable sales, every possible AI response, organic-search ranking, social mention volume, private or sponsored channels, or causality from a metric movement alone.

About This Benchmark

The LLM Authority Index AI Market Discovery Index tracks how often and how prominently brands appear in AI-generated answers across major AI and search surfaces. It is a neutral industry benchmark, updated monthly.

• AI Market Discovery Methodology
• AI Market Discovery Metric Definitions
• AI Market Discovery Research Standards
• Modeled AI Authority Value

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