Medical Staff Office

The hospital department responsible for managing provider credentialing, privileging, medical staff governance, and compliance with accreditation standards.

The medical staff office, or MSO, is the department within a hospital or health system that handles everything related to provider credentials and privileges. If you need hospital privileges, the MSO is who you deal with. The MSO's responsibilities include processing initial credentialing and privileging applications, managing re-credentialing cycles, maintaining provider credentialing files, supporting the credentials committee and medical executive committee, administering peer review processes, managing provider directory data, and ensuring compliance with Joint Commission, CMS, and state regulatory requirements. When you apply for hospital privileges, your application goes to the MSO. They collect your documents, initiate primary source verification, compile your file for the credentials committee, track the committee's decision, and issue your privilege letter. They also manage the ongoing process, including re-credentialing every two years, monitoring license and insurance expirations, and processing privilege change requests. The MSO is separate from the hospital's human resources department, even though both deal with provider information. HR handles employment matters. The MSO handles clinical credentialing and privileging. In some smaller hospitals, these functions are combined, but in most medium and large facilities, they are distinct departments. The quality of the MSO directly affects your credentialing experience. An efficient MSO with experienced staff processes applications in four to six weeks. A poorly staffed MSO can take three to six months for the same application. If you are evaluating hospitals to join, the MSO's responsiveness is worth investigating. Most MSOs are staffed by certified professionals. The National Association Medical Staff Services offers the CPMSM (Certified Professional Medical Staff Management) and CPCS (Certified Provider Credentialing Specialist) credentials. These certifications indicate that the MSO staff has specialized training in credentialing processes and regulations. If your hospital credentialing application is delayed, the MSO is your point of contact. Call them directly rather than going through the physician recruitment office or HR. The MSO can tell you exactly what is holding up your application and what you need to do to move it forward.