Muhammad Bilal A.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

$2M+ AR Recovered | 70+ Providers Credentialed Under One Tax ID | Mental Health Billing | AR Specialist I've spent the last 5+ years working as a medical biller and credentialing specialist, and in that time I've recovered $2M+ in aged AR and credentialed and contracted providers, groups, and facilities, including a 70+ provider group in California. On the medical billing side, I recovered aged AR by identifying unpaid claims, working rejections and denials, filing appeals, following up with payers, and ensuring claims were submitted and processed correctly. On the credentialing side, I credentialed and contracted providers with insurance plans and IPAs, handled recredentialing and address updates, managed provider data, and led a credentialing team handling issues such as providers not appearing on payer portals, incorrect portal addresses, authorization denials, and other contracting issues while maintaining accurate provider information in MD Staff. I started at the ground level doing medical billing work, claims submission, payment posting, and denials, basically everything an end user touches, before moving into lead and management roles where I worked directly with providers on their concerns and put together reports and summaries (you'll find some of these in my portfolio below). I've worked across a mix of specialties: internal medicine, family medicine, mental health and behavioral health, physical therapy, rural health clinics, ambulance/EMS billing, ASAM 3.1 residential treatment facilities, and DME billing for post-mastectomy services. Every one of these comes with its own coding quirks, payer rules, and documentation requirements, so I don't run the same generic process across all of them. I adjust based on what each specialty actually needs. Medical billing and coding services: • Full revenue cycle management (RCM), from charge entry through claim submission on CMS-1500 and UB-04 forms • Medical coding across ICD-10, CPT, and HCPCS, including E/M coding, modifier application, and multi-specialty coding • Insurance eligibility and benefits verification before claims go out, so denials get caught before they happen instead of after • Claim scrubbing and compliance reviews to reduce first-pass denials • AR follow-up and denial management, claim appeals and denial resolution • Payment posting and reconciliation • Patient billing, statements, and collections Provider credentialing and payer enrollment services: • Individual and facility credentialing • CAQH profile setup and ongoing maintenance • PECOS enrollment for Medicare and Medicaid billing • Commercial payer enrollment and contracting • Prior authorization support • Multi-state enrollment and re-credentialing • Payer follow-up through full provider onboarding How I work: I start by reviewing your current billing setup or credentialing needs to find where things are breaking down, whether that's a backlog, a denial pattern, or a stalled payer enrollment. From there I build a workflow around eligibility verification, coding, claim submission, AR tracking, and follow-up, with regular updates so you always know where a claim or credentialing application stands. EHR and billing software I work with: Athenahealth, Kareo, DrChrono, AdvancedMD, eClinicalWorks, Epic, NextGen, PracticeSuite, Office Ally, Availity, Waystar, Zelis, PracticeQ, SimplePractice, TherapyIQ, and TherapyNotes. Skills: Medical Billing, Medical Biller, Medical Coding, Revenue Cycle Management, Insurance Claim Submission, Denial Management, Accounts Receivable, CPT Coding, ICD-10, HCPCS Coding, Provider Credentialing, Payer Enrollment, CAQH, PECOS, Prior Authorization, Insurance Verification, Behavioral Health Billing, DME Billing, Medical Claims Processing, Healthcare Compliance If you need a medical biller or credentialing specialist to manage your revenue cycle, message me and let's talk through your specific setup.