End-to-End RCM for Anesthesia Groups, Hospitals & CRNAs

Anesthesia Billing Services

From pre-operative evaluations to intraoperative monitoring and post-op pain management, we support anesthesia groups with billing systems built for accuracy, compliant time tracking, and prompt reimbursements with no delays, no missed units.

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Anesthesia RCM Expertise That Accounts for Every Minute

At AnnexMed, we understand the intricacies of anesthesia billing, from exact time-based coding and concurrency tracking to tackling ASA modifiers and documentation requirements. Our workflows are designed to support surgical schedules, ensure compliance, and maintain clean claim rates, so your reimbursements don’t miss a beat.

What’s Numbing Your Anesthesia Revenue?

Anesthesia billing is a balancing act, tight timelines, surgical overlaps, and strict compliance rules mean even small gaps in documentation or coding can cost you big.

Anesthesia RCM That Runs as Smoothly as Your OR

From routine surgeries to complex multi-provider cases, AnnexMed’s anesthesia billing services ensures precise charge capture, cleaner claims, and consistent cash flow for your practice.

Auto-routed workflows based on case type: general, regional, MAC, or monitored care
CRNA and anesthesiologist billing managed with modifier accuracy and compliance
Integrated pre-op, intra-op, and post-op data mapping for seamless charge flow
Customized capture sheets for anesthesia time, complexity level, and ASA units
Live dashboards highlighting case mix trends, anesthesia time averages, and revenue gaps

No Gaps. No Guesswork. Just Clean Anesthesia Claims.

Anesthesia billing hinges on precision, time units, modifiers, medical direction rules, and place-of-service all impact payment. AnnexMed brings together coding accuracy, payer rule mastery, and proactive AR to keep your reimbursements running smoothly.

Anesthesia Time & Modifier Accuracy

We calculate base + time + modifier units with precision, ensuring compliance for personally performed, medical direction, or CRNA services.

Pre-Surgery Authorization Management

Our teams secure approvals for high-risk procedures, regional blocks, and monitored anesthesia care to prevent delays and denials.

Preoperative Eligibility & Documentation Checks

We verify patient eligibility, ASA status, and required documentation before surgery day, minimizing claim holds and post-op rework.

Specialty-Focused AR Follow-Up

Our AR specialists focus on anesthesia-specific denial patterns, including missing time units, invalid modifiers, and concurrency issues.

Split Case Payment Reconciliation

Whether you're billing for multiple providers or different phases of care, we reconcile partial payments and track down missing reimbursements.

Denials & Appeals for Anesthesia

We resolve high-impact denials tied to time calculation errors, duplicate anesthesia submissions, and payer-specific supervision rules.

Adhering to Industry Standards

Compliance Isn’t a Department. It’s Our Operating System.

At AnnexMed, compliance isn’t a one-time task, it’s woven into every process of our cardiology RCM workflow. Our dedicated compliance officers monitor each touchpoint, ensuring full adherence to HIPAA, FDCPA, and all payer-specific regulations.

We back this with system-led audit trails, intelligent policy enforcement, and quarterly compliance drills. From intake to collections, every claim is protected by layered controls, real-time alerts, and ongoing staff training, minimizing risk, preventing breaches, and keeping your practice audit-ready at all times.

SOC 2 Type 1

Reporting on controls at a service organization

ISO 27001:2022

Securing and protecting information

ISO 9001:2015

Achieving quality policy and quality objectives

SOC 2 Type 2

Implemented the SOC 2 approved by AICPA

Case Studies

How Healthcare Teams Are Winning with AnnexMed

From Errors to Excellence! Florida Ortho Practice Hits 95% Coding Accuracy

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Featured Blog

Trends and Best Practices in Anesthesia Medical Billing Services

Frequently Asked Questions in Outsourcing Anesthesia Billing

Do your coders understand time-based anesthesia billing?

Yes. Our coders are trained in time unit and base unit calculations, including start/stop time accuracy, modifiers for concurrency, and physical status indicators. We ensure precise charge capture and avoid revenue loss due to miscalculated units.

How do you ensure compliance with anesthesia documentation?

We review anesthesia records for completeness, including pre-op assessments, intraoperative details, and post-op notes. Our compliance checks flag missing elements that could delay payment or trigger denials.

Can you support with billing services for multiple specialties under one anesthesia group?

Yes. Many anesthesia groups support various specialties, from ortho and OB to cardiac and pain management. We apply specialty-specific modifiers and documentation protocols while keeping group billing streamlined.

Can you handle both hospital-based and office-based anesthesia billing?

Absolutely. Whether your providers work in surgical centers, outpatient settings, or hospitals, we customize workflows to account for different payer rules, reporting structures, and site-of-service requirements.

Can you support anesthesiology groups with multiple CRNAs and supervising MDs?

Yes. We track provider concurrency, manage NPI mapping, and follow payer-specific rules for anesthesia teams. Whether it’s a solo practice or a group with CRNAs and anesthesiologists, we handle the complexity.

Do you offer anesthesia-specific denial management?

Yes. We track common denial reasons in anesthesia, like missing time, invalid modifiers, or concurrency conflicts, and work with your team to fix the root causes. Our reporting gives you visibility into trends and recovery rates.