Trusted Medical Billing Company in the USA
ONEX OMS LLC is a medical billing company providing medical billing and revenue cycle management services for physicians, clinics, and healthcare practices across the USA.
Our billing professionals manage claims, coding, denial follow-up, payment posting, and other essential revenue cycle processes, helping healthcare providers spend more time focused on patient care.
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Medical Billing Company & Revenue Cycle Management Services
ONEX OMS LLC provides medical billing and revenue cycle management support for physicians and healthcare practices across a wide range of medical specialties. Our team works with specialty-specific billing and coding requirements to help practices manage claims, reimbursement processes, and administrative billing responsibilities.
As a result, our certified coders and experienced billing professionals support accurate coding, clean claim submission, denial follow-up, and reimbursement processes while helping reduce administrative workload.
Key benefits:
- Support Accurate Medical Coding
- Reduce Claim Denials & Rejections
- Streamline Claims and Reimbursement
- Improve Revenue Cycle Efficiency
Trusted Medical Billing & RCM Experts
At ONEX OMS LLC, we are dedicated to optimizing healthcare revenue through accurate, compliant, and efficient medical billing solutions. Our team supports physicians, clinics, and healthcare organizations by streamlining revenue cycle processes and helping practices manage their billing operations more efficiently.
Our certified coders and experienced billing professionals support accurate coding, clean claim submission, denial follow-up, and reimbursement processes while helping reduce administrative workload.
Optimize Revenue Performance
Reduce Administrative Workload
Medical Billing Services for Healthcare Practices
At ONEX OMS LLC, we simplify healthcare practice operations with comprehensive Revenue Cycle Management (RCM) solutions designed to support efficient billing, reimbursement, and administrative processes.

Medical Billing Services
We manage claim submission, charge entry, payment posting, and insurance verification to support accurate and efficient reimbursement.

AR Management Services
We follow up on unpaid claims, address outstanding accounts, and support effective accounts receivable management.

Medical Coding
Our certified coders provide accurate ICD-10, CPT, and HCPCS coding to support compliant billing and reduce coding-related claim issues.

Denial Management
We identify denial causes, address billing issues, and support timely claim resubmission to help recover outstanding reimbursement.

Insurance Eligibility Verification
We verify patient eligibility and benefits before services to help reduce coverage-related claim rejections and billing delays.

Reporting & Analytics
Financial reports and performance insights help practices monitor revenue cycle activity and make informed operational decisions.
Our Specialties
ONEX OMS LLC provides medical billing and revenue cycle management support for physicians and healthcare practices across a wide range of medical specialties. In addition, our team works with specialty-specific billing and coding requirements to help practices manage claims, reimbursement processes, and administrative billing responsibilities.
Our specialty experience includes:

OB/GYN

Neurology

Orthopedics

Podiatry

Cardiology

Nephrology

Psychiatry

Primary Care

Endocrinology

Internal Medicine

Pain Management

Infectious Disease
Our Specialties
ONEX OMS LLC is a USA-based medical billing company delivering comprehensive billing and RCM solutions for physicians and healthcare practices across 50+ specialties. Our specialty-focused teams understand payer guidelines and coding requirements to help increase reimbursements while reducing administrative burdens.
We proudly serve a wide range of specialties, including:

OB/GYN

Neurology

Orthopedics

Podiatry

Cardiology

Nephrology

Psychiatry

Primary Care

Endocrinology

Internal Medicine

Pain Management

Infectious Disease
How Our Medical Billing Process Works
At ONEX OMS LLC, we simplify key steps of the revenue cycle to help healthcare providers manage billing efficiently and reduce administrative workload.
From patient eligibility verification and accurate medical coding to claim submission, payment posting, denial management, and accounts receivable follow-up, our team supports a structured billing process focused on accuracy, compliance, and timely reimbursement.
Patient Intake & Verification
Medical Coding & Claim Submission
Payment Posting & Reconciliation
Denial Management & AR Follow-Up
Increase Revenue Up to 30%
EHR & EMR Solutions for Every Practice
Simplify your practice management with ONEX OMS LLC medical billing services and free EHR and EMR solutions. Our team helps keep your workflow organized and efficient so you can focus on patient care while we support your billing and revenue cycle needs.
Explore EHR & EMR Solutions Designed to Support Your Practice


















Benefit For Physical Mental
and Virtual Care
Revenue Cycle Solutions Built for Every Stage of Healthcare Growth
From independent practices to multi-location hospitals, we support healthcare providers across the United States with medical billing and revenue cycle management services designed around their operational needs.
Speak with Our Experts
Tell us about your practice and billing needs. Our team can review your requirements and discuss how ONEX OMS LLC can support your medical billing and revenue cycle management needs.
Turning Every Practice into a Growth Story
Dr. Sarah Mitchell
James Walker
Dr. Priya Shah
Melissa Grant
Dr. Hannah Lee
