ACP Billing | Automatic Claims Processing, Inc.

ACP Billing has been a medical billing outsourcing partner for physician practices across the United States since 2005. Based in Chino, CA, they operate as a back-office BPO company focused entirely on healthcare revenue cycle work: getting claims submitted accurately, following through when payers push back, and making sure reimbursements actually land. For practices that want a billing team they can reach and rely on, ACP fills that role without the overhead of managing it in-house. The services span the full revenue cycle. Upstream, the team handles eligibility checks and authorization reviews to catch coverage and documentation issues before they become rework. Completed superbills and encounter forms move through batching, coding review, and quality control before being submitted within 48 to 72 hours. When claims are denied, ACP's staff identifies the root cause, corrects it, and resubmits with consistent follow-up until resolution. A dedicated back-office department pursues aging accounts receivable, recovering outstanding balances that might otherwise go uncollected. Patient billing support includes statement generation, clear payment instructions, and text reminders, which cuts down on confusion and improves collections. Credentialing and Medicare provider enrollment round out what the company handles. ACP works across a broad range of healthcare settings. Their client base includes urgent care centers, primary care and family medicine practices, podiatry groups, laboratories, radiology services, hospital-based care, maternal-fetal medicine, rheumatology, and infusion services. They serve both small independent practices and larger multi-provider groups, functioning as a billing outsourcing extension of the practice rather than a detached third-party vendor. The team includes AAPC-certified coders and registered nurses, giving ACP clinical and compliance depth that generalist billing services often lack. Medicare and Medicaid expertise is a highlighted strength. Onboarding is structured around a Startup Checklist and Billing Agreement, with enrollment forms for major payer types provided at the start to reduce friction. Account relationships at ACP tend to run long. Several clients on the site cite ongoing partnerships of eight or more years, and direct access to a named account representative is something the company specifically points to as part of how they work. Practices looking to outsource medical billing, recover aging receivables, or hand off claim follow-up to a dedicated back-office team can request a consultation through ACP's website. Initial conversations focus on the practice's current billing situation and where the most immediate support is needed.