Advanced Practice Professional (APP) billing

Office-based services and facility rounding coding

Nurse practitioners (NP), physician assistants (PA), and certified nurse midwives (CNM), collectively referred to as APPs, must be contracted and credentialed in order to bill directly for services. If you choose not to credential your providers, then we require you to bill claims under the Supervising Physician.

To contract with us and start the credentialing process for your APP, go to the Provider forms page and complete the Provider information form.

Surgical assists

Surgical assists must bill services using the HCPCS Level II modifier -AS, a non-physician assistant at surgery. This includes PA, CNS, CRNFA, RNFA, NP, DDS, DMD, and surgical technician provider types, subject to contract eligibility.

See details about modifiers 80 and 82.


Most services are reimbursed at 85% of the professional fee schedule.

Some services may be paid at the 100% of the physician fee schedule, if you are contracted to provide them:

  • Anesthesia
  • Labs, including venipuncture and radiology
  • Immunizations, vaccines and toxoids
  • Injectables and supplies and ancillary services
  • Services provided by APPs who are credentialed as Primary Care providers
  • Services provided by APPs who are credentialed as CNMs