# Medical Billing & RCM Blog | PRMS Billing Solutions Insights # Medical Billing & RCM Blog Practical, no-fluff guidance on billing, coding, denials, credentialing, and getting paid faster, written by a team that does this every day. [Fundamentals ### What Is Revenue Cycle Management (RCM)? A plain-English guide to what RCM stands for, the stages of the healthcare revenue cycle, why it matters, and the numbers that measure it. July 15, 2026](https://prmsbs.com/blog/what-is-revenue-cycle-management/) [Credentialing ### How to Get Credentialed with Insurance Companies A step-by-step guide: NPI, CAQH, payer applications, follow-up, and effective dates, plus the mistakes that stall approval. July 15, 2026](https://prmsbs.com/blog/how-to-get-credentialed-with-insurance-companies/) [Fundamentals ### What Does RCM Stand For? Medical Billing Acronyms Explained What RCM stands for, plus a plain-English glossary of the billing and revenue cycle acronyms you actually see: AR, EOB, ERA, CARC, CAQH, and more. July 15, 2026](https://prmsbs.com/blog/medical-billing-rcm-acronyms/) [Coding ### Physical Therapy Billing Units & the 8-Minute Rule How to count PT units: timed vs untimed codes, the 8-minute rule table, worked examples, and the mistakes that cost therapy clinics revenue. July 15, 2026](https://prmsbs.com/blog/physical-therapy-billing-units-8-minute-rule/) [Coding ### What Is Incident-To Billing? Rules & Requirements The Medicare rule that lets NPP services bill under the physician at 100%, the requirements to meet, and where it does not apply. July 15, 2026](https://prmsbs.com/blog/what-is-incident-to-billing/) [Fundamentals ### Medicare Billing: A Guide for Providers How Medicare billing works: PECOS enrollment, MACs, Part B claims, the fee schedule, assignment, timely filing, ABNs, and common denials. July 15, 2026](https://prmsbs.com/blog/medicare-billing-guide/) [Coding ### Mental Health Billing Codes (CPT), Explained The CPT codes for psychotherapy, evaluations, add-ons, testing, and group and family therapy, with time thresholds and the rules that get sessions denied. July 15, 2026](https://prmsbs.com/blog/mental-health-billing-codes/) [Press Release ### PRMS Billing Solutions Expands Nationwide Medical Billing to 25+ Specialties PRMS announces specialty-specific medical billing and RCM across 25+ specialties nationwide, a redesigned website, and a free revenue analysis. July 14, 2026](https://prmsbs.com/blog/prms-expands-medical-billing-25-specialties-nationwide/) [Denials ### Common Medical Billing Denial Codes & Solutions A plain-English guide to CO-45, CO-97, PR-1, CO-16 and more, what each denial code means and exactly how to fix it. July 13, 2026](https://prmsbs.com/blog/medical-billing-denial-codes/) [Fundamentals ### The Medical Billing Process, Step by Step The ten steps of the revenue cycle in order, from registration and eligibility to coding, submission, denials, and AR. July 13, 2026](https://prmsbs.com/blog/medical-billing-process-steps/) [Fundamentals ### Medical Billing vs. Medical Coding: The Difference What each does, the codes involved, how they work together, and why your practice needs both done well. July 13, 2026](https://prmsbs.com/blog/medical-billing-vs-medical-coding/) [Revenue Cycle ### How to Reduce Claim Denials: 9 Fixes That Work in 2026 The top reasons claims get denied and nine proven fixes to lower your denial rate and speed up reimbursement. July 11, 2026](https://prmsbs.com/blog/how-to-reduce-claim-denials/) [Practice Management ### In-House vs. Outsourced Medical Billing: How to Decide A straight comparison of costs, control, and results, and when each option actually makes sense for your practice. July 11, 2026](https://prmsbs.com/blog/in-house-vs-outsourced-medical-billing/) [Pricing ### How Much Do Medical Billing Services Cost? The three pricing models, typical rates, what should be included, and why the cheapest percentage isn’t the best value. July 11, 2026](https://prmsbs.com/blog/how-much-do-medical-billing-services-cost/) [Credentialing ### The Medical Credentialing Process & Timeline, Explained How credentialing works step by step, how long each stage takes, and how to avoid the delays that cost revenue. July 11, 2026](https://prmsbs.com/blog/medical-credentialing-process-timeline/)