Medical Billing & RCM Services That Improve Cash Flow
CoreStone is a U.S.-based medical billing company helping physicians, clinics, and healthcare organizations reduce denials, recover aged receivables, and get paid faster — with certified coders and billing specialists managing your full revenue cycle.
Get a Free Revenue Cycle Audit
See exactly where you're losing money to denials, underpayments, and slow claims — before you commit to anything.
- Certified medical coders & billers
- Claims submitted within 24–48 hours
- Transparent monthly reporting
- No long-term contract lock-in
- Dedicated account manager
12+
Years Serving in US50+
Specialties Served20+
Billing & Coding Experts98%
Clean Claim RatioBilling Directly With Every Major Payer
Medical Billing Services in the USA, Done Right
Medical billing services provide structured, end-to-end solutions that support healthcare providers by converting clinical documentation into accurate, billable insurance claims. Through advanced electronic billing systems and streamlined clinical workflows, CoreStone precisely captures diagnoses, procedures, and charges — then submits clean claims to insurance payers in a timely manner.
Beyond claim generation, our work covers comprehensive physician accounts management and billing administration: patient claim invoicing, resolution of claim rejections and denials, monitoring of outstanding balances, and detailed financial reporting to support informed revenue cycle management and long-term financial planning.
A Medical Billing Company Built on Accuracy, Compliance & Trust
Beyond claim generation, our work covers comprehensive physician accounts management and billing administration: patient claim invoicing, resolution of claim rejections and denials, monitoring of outstanding balances, and detailed financial reporting to support informed revenue cycle management and long-term financial planning.
Our team of certified medical coders and billing specialists works diligently to maximize reimbursements, recover aged receivables, and resolve insurance claim denials — reducing your administrative burden and improving cash flow.
- Patient Verification
- Fast Reimbursement
- Revenue Cycle Management
- A/R Recovery
- Claim Scrubbing
- Claim Submission
Secure Claim Transmission
Patient data is encrypted in transit and at rest, with role-based access controls limiting who can view sensitive claim information.
Increased Revenue
Get full payments — without unfair cuts by insurance networks.
Instant Claim Submission
Electronic billing files claims instantly for faster turnaround.
Claim Follow-Up
Denied claims are appealed, corrected, and resubmitted until paid.
Complete Medical Billing & Revenue Cycle Services
From first patient visit to final payment posting, CoreStone manages the entire billing lifecycle with certified coders, dedicated account managers, and technology-enabled workflows. Our medical billing team handles claim submission, denial follow-up, and A/R recovery. Full-lifecycle revenue cycle management covers registration, eligibility, medical coding, billing, and collections. Providers who need payer enrollment can rely on our credentialing team, and practices wanting a second opinion can start with a billing audit.
Medical Billing Services
End-to-end claim generation, submission, and follow-up that converts clinical documentation into clean, billable claims.
Learn MoreClearinghouse Services
Connect with hundreds of commercial and government payers for real-time eligibility checks and claim status tracking.
Learn MoreMedical Billing Audits
Identify coding errors, missed charges, and compliance risks before they cost you revenue or trigger a payer review.
Learn MoreRevenue Cycle Management
Full-lifecycle RCM covering registration, eligibility, coding, billing, payment posting, and collections.
Learn MoreMedical Credentialing
Provider enrollment and payer credentialing handled precisely — no missed dates, no missing documents.
Learn MoreMedical Coding
Certified coders assign accurate ICD-10, CPT & HCPCS codes across every specialty for clean claim submission.
Learn MoreHealthcare SEO
Improve your healthcare website's search rankings, attract more patients, and increase online visibility with proven SEO strategies tailored for medical practices.
Learn MoreVirtual Billing Assistant
Professional virtual assistant services to manage administrative tasks, scheduling, customer support, and daily operations efficiently.
Learn MoreA Clean, Complete Claims Process From Day One
Our billing specialists convert your clinical documentation into clean, billable claims — submitting electronically, tracking every unpaid balance, and resolving rejections before they cost you revenue. The result is a measurably faster, more predictable revenue cycle:
Almost 98%
About 97%
1st Submission Pass RateHigher Collections
The Billing Firm That Handles Medical Claims Processing
Managing billing claims poses real difficulty for providers pursuing timely submission and full remittance for the care they give — but our niche medical billing services ease the way. We optimize every invoicing phase, armed with clinical knowledge and a commitment to first-class claims processing. Our cloud technology validates a patient's insurance eligibility instantly and files claims electronically to speed up payment, while our expert billers make sure every claim reaches the insurer for full provider reimbursement.
When "Good Enough" Isn't Enough
As a specialized medical billing agency, CoreStone wrings every last dollar from a provider's claims through 24/7 billing-cycle oversight. We know the major commercial payers — Aetna and Blue Cross Blue Shield — and the government plans inside and out, Medicare and Medicaid. We work hand in glove with top payers so reimbursement forms like CMS-1500, CMS-1450 (UB-04), and CMS-1728-20 are filed correctly the first time. CoreStone makes claims and repayments happen, period.
Traditional Agencies
more claim denials and slower reimbursement are common at in-house or generalist billing operations without dedicated payer expertise.
CoreStone Medical Billing
pass rate on first submission, backed by full support for denied and rejected claims until they're paid.
Technology & Expertise United to Meet Every Provider's Vision
Our USA-based revenue cycle team helps individual and institutional providers navigate the tight spots of patient billing and coding through modern, cloud-enabled workflows.
- Patient Verification
- Fast Reimbursement
- Revenue Cycle Management
- A/R Recovery
- Claim Scrubbing
- Claim Submission
Our 3-Step Onboarding Process
From your first patient encounter to posted payment, here's how CoreStone takes billing off your plate.
Submit Practice Data
Share patient encounters, superbills, or EHR access through your preferred secure method — we handle the rest.
Same Day IntakeWe Verify, Code & Submit
Certified coders scrub and code every claim, verify eligibility, and submit electronically to payers nationwide.
24–48 Hr TurnaroundTrack Payments & Recover A/R
We post payments, chase denials, appeal rejections, and deliver transparent reporting on every dollar collected.
Full VisibilityBilling Expertise Across 50+ Specialties
Our specialty-focused billing teams know the ICD-10 rules and payer protocols unique to your niche — and customize your EHR to match your workflow.
Save More Than In-House Billing
Outsource to CoreStone for billing optimization with a competitive collections rate, pay-for-paid model, free EMR software, scalability, and free denied-claim appeals — plus these complimentary perks:
- Billing Software
- Accounts Management
- Clearinghouse Services
- Denial Management
- Electronic Statements
- 1:1 Technical Support
Pay-As-You-Go
Best for solo providers & small practices.
- Claim submission & scrubbing
- Eligibility verification
- Standard denial follow-up
- Monthly performance reports
Full-Service RCM
Best for growing multi-provider practices.
- Everything in Pay-As-You-Go
- Dedicated account manager
- Aggressive A/R recovery
- Credentialing support
- Free denied-claim appeals
Enterprise / Group
Best for hospitals & multi-specialty groups.
- Everything in Full-Service RCM
- Dedicated billing team
- Custom EHR integration
- Priority compliance review
Why Providers Trust CoreStone
When "good enough" isn't enough, you need a specialized medical billing partner wringing every dollar from your claims.
Accurate & Data-Backed Claims
We combine payer rules, historical data, and coding expertise to submit claims providers can rely on.
98% Clean Claim RatioComprehensive Services
From credentialing to collections, one partner handles your entire revenue cycle end to end.
50+ SpecialtiesDedicated Account Manager
A single point of contact who knows your practice, your payers, and your goals.
1:1 SupportFastest Turnaround
Claims are scrubbed and filed electronically within 24–48 hours of receipt.
24–48 HrsCompliance-First
We stay current on federal and state billing regulations, including CMS-1500 and UB-04 requirements.
AlignedNationwide Coverage
An American workforce with payer knowledge across all 50 states, Medicare and Medicaid included.
All 50 StatesServing Providers in All 50 States
As a leading medical billing company in the USA, CoreStone helps providers succeed financially wherever they practice, with payer knowledge that maximizes reimbursement nationwide.
- Chicago, IL
- Los Angeles, CA
- New York, NY
- Austin, TX
- Seattle, WA
- Atlanta, GA
We Work Within The Software You Already Use
No need to switch systems — our billing team plugs directly into the EHR and practice management platform you're already running.
Frequently Asked Questions
A medical billing company manages the entire billing and reimbursement process for healthcare providers — from accurate coding and claim submission to insurance follow-ups and payment posting. Outsourcing to CoreStone reduces administrative costs, improves cash flow, lowers denials, and frees you to focus on patient care.
Complete end-to-end billing and RCM services, including medical coding (ICD-10, CPT, HCPCS), charge entry and claim submission, eligibility verification, payment posting, denial management and appeals, A/R follow-up, credentialing and enrollment, and monthly performance reporting.
Our denial management specialists identify the root cause, correct errors, submit appeals, and follow up with payers until resolution — monitoring every claim until payment is received.
Yes. We provide transparent, detailed reports so you can track collections, claim status, denial trends, A/R aging, and overall revenue performance at any time.
Yes. Every state has its own filing rules for Medicaid and Medicare. We know which forms and codes to use, track every claim, and manage appeals so you recoup all owed payments.
Our certified team stays current on regulations for every state we serve, uses correct forms and codes, and reviews claims for accuracy from the start to avoid delays or denials.
It's the process of converting patient encounters into accurate insurance claims and submitting them to payers such as Medicare, Medicaid, and commercial insurers. It also includes claim tracking, denial resolution, patient billing, and financial reporting to ensure timely, maximum reimbursement.
No. CoreStone offers flexible, pay-for-paid pricing with no long-term lock-in, so you can scale services up or down as your practice grows.
Most practices are fully onboarded and submitting claims through CoreStone within 5–10 business days, depending on payer credentialing and EHR access.
In-House Billing vs. CoreStone Medical Billing
Staffing an in-house billing department costs more than most practices realize once salaries, software, and overhead are added up. Here's a side-by-side look at a typical solo-to-small practice.
Request Your Free Billing Quote
Tell us about your practice and one of our billing specialists will follow up within one business day.
CoreStone Medical Billing Services
Serving healthcare providers across all 50 states with accurate, compliant, and technology-enabled medical billing.