Liviar Angel S.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 Feb 21, 2026.

⭐⭐⭐⭐⭐ Client Feedback: "I enjoyed working on this project. All expectations and requirements were communicated up front and the client was responsive to any of my requests for clarification. I liked working with him and hope to have the opportunity to work with him again." Are denied claims, delayed reimbursements, and endless insurance follow-ups affecting your bottom line? As a Medical Billing Specialist, I help healthcare providers optimize their billing cycles and maximize their revenue with proven strategies and a detailed focus on accuracy and compliance. I am Angel Salazar, a seasoned HIPAA-Certified Medical Billing and Revenue Cycle Management (RCM) expert specializing in reducing denials, speeding up reimbursements, and increasing the cash flow for U.S. healthcare practices. I work with physicians, clinics, and specialty practices, helping them navigate the complexities of medical billing while ensuring full HIPAA compliance. What I Offer: Complete Medical Billing Solutions: I handle the entire billing process from patient registration to claims submission and collections, ensuring no revenue is left on the table. Claims Denial Management & AR Recovery: I specialize in identifying and resolving denied claims quickly to reduce aging AR and recover lost revenue. Prior Authorization & Insurance Verification: I streamline prior authorization and insurance verification to prevent delays and claim denials, ensuring clean and timely claims. Medical Coding: I provide accurate CPT and ICD-10 coding to ensure maximum reimbursement and minimal errors. Why Choose Me? Specialized Expertise in Medical Billing: I bring years of experience working across a variety of specialties including behavioral health, outpatient clinics, DME, and primary care, understanding the unique billing challenges and payer rules. HIPAA Compliant & Detail-Oriented: I strictly adhere to HIPAA guidelines, ensuring your practice stays compliant and your sensitive patient data remains secure. Proven Results: Reduced Denials: Streamlined verification and coding workflows that significantly reduce denials. Optimized Cash Flow: I’ve helped practices improve cash flow by recovering aging AR and accelerating reimbursements. Higher Reimbursement Rates: My focus on accuracy and compliance ensures that claims are paid out correctly, increasing overall revenue. Software & Tools Expertise: Medical Billing Software: Epic, Kareo, Athenahealth, AdvancedMD, eClinicalWorks, DrChrono Clearinghouses: Availity, Waystar, Change Healthcare Industries I Serve: Behavioral Health Primary Care Outpatient Clinics Specialty Practices (e.g., DME, Neurology, Pediatrics) Why Work With Me? End-to-End Medical Billing Services: From eligibility verification to collections, I handle it all to ensure a smooth revenue cycle. Clear Communication & Transparency: I provide regular updates and am always available for consultations or clarifications. Dedicated to Long-Term Success: I’m invested in building long-term partnerships that drive efficiency and profitability for your practice. Let’s work together to simplify your medical billing process, reduce denials, and ensure timely reimbursements for your practice. Contact me today, and let’s take the stress out of your revenue cycle management.