Indiana
PMHNP Practice Requirements in Indiana: Scope, Prescribing & Collaboration
If you are a psychiatric mental health nurse practitioner (PMHNP) planning to practice in Indiana, here is a plain-language overview of the state’s practice-authority category, any collaboration required, and how those rules shape your billing and credentialing. General information, not legal advice.
Reviewed by Ryan Berg · Updated July 2026
Please Read First
Informational only, not legal advice. Requirements change, so verify with the Indiana State Board of Nursing and the AANP State Practice Environment map. Last reviewed: July 2026. This page focuses on PMHNPs but reflects general nurse practitioner rules in Indiana, which change over time, so confirm your specific situation with the board.
Practice Authority
Indiana Practice-Authority Category (Reduced Practice)
The American Association of Nurse Practitioners (AANP) currently classifies Indiana as a reduced practice state. In practice, a Indiana PMHNP works under a required collaborative relationship with a physician for at least some elements of practice, including aspects of prescribing. Because these designations can change, confirm the current category directly with the Indiana State Board of Nursing and the AANP map before you rely on it.
Collaboration
Is a Collaborative or Supervisory Agreement Required?
Indiana generally requires a nurse practitioner to have a collaborative relationship or agreement with a physician for at least some functions before providing the full scope of care. What any agreement must contain, how it is documented, and how often it is reviewed are set by state rule and can change, so confirm the current requirements and forms with the Indiana State Board of Nursing.
Prescriptive Authority
Prescriptive Authority and Controlled Substances
Indiana nurse practitioners who meet the state’s requirements may be granted prescriptive authority, which in general can extend to controlled substances when the appropriate conditions are met. Controlled-substance prescribing also requires a separate federal DEA registration, and some substances carry additional conditions. Because the specific scope and documentation are governed by state law and board rule, verify current details with the Indiana State Board of Nursing and the U.S. Drug Enforcement Administration before prescribing.
Next Step
Credentialing Is a Separate Track
Scope of practice decides how you can practice in Indiana. Getting paid is a separate track, with its own payer rules, Medicaid program, and enrollment timelines. We cover that in detail on the Indiana credentialing and payer enrollment page, and nationally in our PMHNP credentialing guide.
Building something new? Our guide on how to start a PMHNP practice helps you sequence licensure, collaboration, and enrollment in the right order.
FAQ
Frequently Asked Questions
Is Indiana a full practice authority state for PMHNPs?
No. AANP currently classifies Indiana as a reduced practice state, meaning Indiana NPs work under a required collaborative relationship for at least some functions. Confirm the current category with the Indiana State Board of Nursing and the AANP map.
Do I need a collaborating or supervising physician in Indiana?
Generally yes, for at least some functions. Indiana typically requires a collaborative relationship with a physician. Verify current requirements with the Indiana State Board of Nursing.
Can a PMHNP prescribe controlled substances in Indiana?
NPs who meet state requirements may be granted prescriptive authority that can include controlled substances, but a separate DEA registration is required and conditions apply. Verify with the Indiana State Board of Nursing and the DEA.