Reimbursement, Customer Service Specialist (remote) - Remote Eligible

Customer Service Specialist

Castle Biosciences Inc. is growing, and we are looking to hire a Customer Service Specialist working remotely from your home office based in the USA, with a start date on or before January 15, 2026. Total compensation package includes salary range of $46,000.00 - $47,277.00. Final salary is based on experience and education levels. Excellent annual salary with 20% bonus potential, 20 accrued PTO days annually, 10 paid holidays, 401K with 100% company match up to 6%, 3 health care plan options plus company HSA contribution, company stock grant upon hire, and $75/month reimbursement for internet service.

A day in the life of a Customer Service Specialist involves answering incoming calls and email inquiries from patients, clinicians, insurance plans, and area sales managers. The position provides support for insurance billing-related questions and educates callers on reimbursement processes, billing policies, and required documentation needed for appeals and medical record submissions. The majority of time in this role is spent managing inbound communications, ensuring timely, accurate responses, and delivering clear guidance to a wide range of internal and external stakeholders.

Requirements include a minimum of three years of customer service experience, preferably in a call center environment, minimum of two years of health insurance billing with experience in identifying and resolving claim issues, experience collaborating with patients, providers, and insurance plans throughout the billing cycle, experience researching and utilizing payor websites, certification in medical billing and/or coding or equivalent experience, and must demonstrate the ability to type 35 WPM with 90% or higher accuracy.

Travel requirements are less than 5% as needed for training and meetings. Schedule is Monday to Friday, 8:00 AM to 5:00 PM, non-exempt position, working remotely from your home office based in the USA.

Ready to join our biotech team? We truly appreciate your time. If this feels like the right opportunity for you, we’d love for you to complete our mobile-friendly application. We’re excited to learn more about you and look forward to connecting soon!

All candidates must be legally authorized to work in the United States. Currently, Castle Biosciences does not sponsor H-1B visas, OPT, or employment-related visas.

At Castle Biosciences, people are at the heart of everything we do. Our mission is to improve health through innovative tests that guide patient care. We empower patients and clinicians to make more confident, personalized treatment decisions through rigorous science and clinically actionable solutions that help improve disease management and patient outcomes. Our impact starts with our team. Every individual at Castle plays a meaningful role in advancing patient care. We value integrity, trust and collaboration in all we do and are committed to fostering an environment where people can grow, thrive and make a lasting impact. Here, your work has purpose, your voice matters and together, we’re shaping the future of precision medicine. Castle Biosciences is an equal opportunity employer as to all protected groups, including.