Mission Statement

The delivery of exceptional coding services, solutions and quality through all phases of the revenue cycle.

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Small Firm, Big Results

It’s true, good things come in small packages. Specializing in coding and revenue cycle management for 17 years (and counting), we’ve delivered amazing results in our clients bottom lines to assist in improving patient care. Since 2014, OS2HCS team of coders have coded over 500,000 home assessments, Medicare and commercial risk adjustment charts.


In 2015, the sister company OS2U Training and Development Center (OS2U) was founded with the goal to coach growing coding professionals compliant coding practices. OS2U is an AAPC approved education provider that incorporates its curriculum with AHIMA domains to provide students the best of both worlds in the coding industry. Coders who maintain a 95% average in their courses and pass their AAPC or AHIMA certification with an 80% or higher are given an opportunity to work on contracts with OS2HCS.


Boasting over 95% accuracy, OS2 can offer your practice exclusively on-shore total Revenuce Cycle Management. 


When it comes to our clients, we offer per-chart and percentage payment options, as well as 24/7 access to a Client Relations Manager for any concerns you may have. By becoming familiar with your practices EHR/EMR, we operate from our headquarters on your systems so you can maintain a watchful eye on our progress and productivity - allowing you to have the control of in-house staffing operations without the overhead.

Melissa Freeman


Meet The Brains Behind OS2

Melissa Freeman is the CEO & founder of OS2 Healthcare Solutions and OS2U Training & Development Center. As a catalyst for change in the medical coding field for more than a decade, she’s applied her talent and vast experience to transform revenue cycle for insurance plans, hospitals and physicians around the country. Under her leadership, she has helped healthcare organizations reclaim millions of dollars in lost revenue while mitigating compliance risk through her expert guidance.

Driven by the desire to help others, Melissa is committed to advocacy, animals, family, fitness, philanthropy and economic advancement of families. In the future, she has plans for bringing her vision to life by merging business and philanthropic interest to improve the quality of life for women, veterans and families across the nation.

Looking for a strategic partner?

We’d love to hear more about your needs and how we can help. Please call, email or send a RFP form and we will be in touch.

Business Certifications


  • Small Disadvantaged Business (SCD)
  • Economically Disadvantaged Women Owned Small Business (EDWOSB)
  • Veteran Owned Small Business (VOSB)


  • Small Business Enterprise (SBE)
  • Minority Business Enterprise (MBE)
  • Disadvantaged Business Enterprise (DBE)
  • African-American Enterprise (AABE)
  • Veteran Business Enterprise (VBE)
  • Historically Underutilized Business (HUB)

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524298: All Other Insurance Related Activities
541219: Other Accounting Services
541611: General Administration / Management Services
561110: Office Administrative Services