Complete RCM for Cardiology Clinics, Hospitals & EP Groups
Cardiology Billing Services
From diagnostic testing and EKGs to device implants and cath lab procedures, we support cardiology practices with billing workflows built for accuracy, faster reimbursements, and zero room for coding errors.
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Cardiology Billing Expertise That Understands Every Heartbeat
At AnnexMed, we specialize in cardiology revenue cycles, tailoring our workflows to align with complex procedure schedules, device billing nuances, and frequent diagnostic testing. From precision coding of cath lab reports to swift handling of prior authorizations and payer-specific edits, we keep your reimbursements healthy and on time.
What’s Slowing Down Your Cardiology Revenue?
Cardiology billing goes beyond coding, it demands precision across high volumes, evolving payer rules, and complex procedures. Small errors can lead to major revenue slowdowns.
- Missed or delayed billing for cardiac monitoring (Holters, event recorders, loop monitors)
- Denials from incomplete documentation in behavioral health or dental visits
- Modifier mix-ups (-26, -TC, -59) that reduce or reject payment
- Incomplete charge capture for multiple stents, vessels, or imaging guidance
- Diagnostic and interventional procedures bundled incorrectly due to unclear documentation
- Underutilized add-on codes for stress tests, EKG interpretations, or contrast studies
Cardiology RCM That Keeps Your Revenue Flowing
Whether you’re billing for stress tests, diagnostic reads, or interventional procedures, AnnexMed’s cardiology billing services reduce rework, eliminate bottlenecks, and help practices scale without revenue drag.
- Priority queues for high-volume encounters like stress tests and follow-up E/Ms
- Cardio-specialized teams trained in echo, nuclear, and vascular coding guidelines
- Workflow segmentation for clinic-based visits, imaging, and interventional services
- Template-driven charge capture for diagnostic interpretations and consults
- Real-time dashboards monitoring reimbursement trends by modality and provider

Reimbursement That Keeps Up With Your Rhythm
Cardiology revenue cycles aren’t linear, they’re layered with tests, consults, and procedures across settings. AnnexMed’s RCM teams decode this complexity to deliver clean claims the first time.
Cardio Coding Precision
Our certified coders handle layered reporting, stress tests, caths, echoes, ensuring accurate coding across E/M, procedures, and diagnostics.
Split Payments & Reconciliation
With frequent same-day tests and treatments, we ensure accurate payment posting, even when E/M, imaging, and interventional charges are split across remits or paid in parts
Referral/Eligibility Coordination
We manage referrals and verify eligibility for diagnostics and cardiology consults, reducing last-minute cancellations & speeding up patient onboarding.
AR Tracking & Recovery
Aggressive follow-up workflows focused on surgical claims, implant charges, and inpatient stays to reduce delays and maximize collections.
Pre-Procedure Prior Auths
We expedite approvals for imaging, nuclear studies, ablations, and interventions, so treatment plans stay on track and revenue doesn’t stall.
Denials Control for Claims
Focused denial workflows address bundling edits, split billing issues, and frequent payer carve-outs that affect cardiology payments.
It’s Time Your Cardiology Billing Matched Your Clinical Precision
Speak with our team and see what streamlined cardiology billing process looks like.
Adhering to Industry Standards
Compliance at the Core of Every Claim
At AnnexMed, compliance isn’t a checkbox, it’s embedded into every layer of our cardiology RCM operations. Our in-house compliance experts oversee protocols to ensure full alignment with HIPAA, FDCPA, and payer-specific requirements. From intake to collections, we build workflows that safeguard patient data while keeping your practice ahead of audit and legal risks.
We maintain real-time audit trails, enforce smart policy controls, and conduct regular privacy and security refreshers across teams. Active case monitoring, system-based alerts, and quarterly compliance updates create a culture of accountability that protects both your revenue and your reputation.

SOC 2 Type 1

ISO 27001:2022

ISO 9001:2015

SOC 2 Type 2
Case Studies
From Errors to Excellence! Florida Ortho Practice Hits 95% Coding Accuracy
Case Studies
The Code to Better Cash Flow: A Cardiology RCM Success Story
Achieve Measurable, Proven Results
Reduction in AR
upto
36%
Improved Collections
upto
98%
Reduce Denials
upto
Decrease in denial rate
Featured Blog
The Latest Updates in Cardiology CPT Coding for 2025 Services
Frequently Asked Questions in Outsourcing Cardiology Billing
Ready to Get Started?
Whether you need full-scale support or help with just one part of the revenue cycle, AnnexMed offers modular services tailored to your most pressing needs.
Let's get started with,
- A quick discovery call to understand your goals
- Insights on how our services align with your workflows
- Guidance on compliance, turnaround, and scaling
- Option to request case study examples
Why AnnexMed?
- 20+ Years of RCM Excellence
- HIPPA Complaince Workflows
- 50+ Specialties Supported​
- U.S. Based & Offshore Hybrid Teams​