A collaborating physician for an NP is a licensed MD or DO. This physician enters a formal, written agreement with a nurse practitioner. The agreement covers clinical oversight, chart review, and consultation. It also satisfies a legal requirement many states place on NP practice, particularly for prescribing.
Whether an NP needs one at all depends entirely on the state. This guide covers which states require the arrangement. It also covers what a compliant agreement must include. A final section covers how the role differs from a supervising or delegating physician.
What Is a Collaborating Physician for an NP?
A collaborating physician is the physician named in an NP’s practice agreement. That agreement defines the scope of practice the physician oversees. It also sets the chart review schedule and how the NP reaches the physician for consultation.
States use different terms for this same underlying relationship. Some call it a collaborating physician. Others call it a supervising physician or a delegating physician. The label usually signals the intensity of oversight involved.
Why the Terminology Varies
A collaborating physician relationship is generally consultative. The physician stays available and reviews charts. The NP retains more day-to-day clinical decision-making under this model. A supervising or delegating relationship usually implies tighter physician involvement, including specific prescribing approvals in some states.
Regardless of the term a state uses, the underlying requirement is the same. The NP cannot practice independently there without a documented, active arrangement.
The Three Levels of NP Practice Authority
Every state falls into one of three categories. The American Association of Nurse Practitioners tracks all of them. These categories decide whether an NP needs a collaborating physician at all.
- Full practice authority. The NP may evaluate, diagnose, and prescribe under the sole authority of the state board of nursing. This includes controlled substances. No collaborating physician is required.
- Reduced practice authority. The NP needs a collaborating physician for specific activities, often prescribing. The NP may practice more independently in other respects.
- Restricted practice authority. The NP needs a documented collaboration or supervision agreement for most or all clinical activity. This often lasts the full duration of the NP’s career.
These classifications shift often. States regularly pass new legislation. Confirm current status on the AANP map before making any practice decision.
Which States Require a Collaborating Physician for NPs?
Requirements vary enough state to state that no single description covers every case. The breakdown below covers 28 states across all three practice-authority categories.
States Requiring Collaboration for Most or All NP Practice
- Texas requires a signed Prescriptive Authority Agreement before any prescribing begins. See our Texas collaborating physician requirements guide for the full agreement content.
- Georgia requires a Nurse Protocol Agreement filed with the state medical board. A cap also limits how many NPs one physician may cover. Our Georgia collaborating physician requirements guide covers the ratio rules.
- Missouri requires chart review at least every 14 days. It also requires a documented one-month co-location period for new NPs. Our Missouri collaborating physician requirements guide explains both requirements.
- Ohio requires a Standard Care Arrangement. The physician’s specialty must match the NP’s specialty. Our Ohio collaborating physician requirements guide covers the specialty standard.
- Alabama requires the physician to be present for 10 percent of a new NP’s scheduled hours. This applies during the first two years. Our Alabama collaborating physician requirements guide breaks down the full oversight structure.
- Florida requires a supervising physician for most NPs. An exception applies once the NP meets a defined set of experience hours. At that point the NP can qualify for an autonomous practice license. Our Florida collaborating physician requirements guide covers the autonomous practice pathway.
- California requires most NPs to practice under standardized procedures developed with a supervising physician. Certified 103 and 104 NPs may practice with less physician involvement once they meet state experience thresholds. Our California collaborating physician requirements guide covers all three tiers.
- Mississippi requires the physician to practice medicine at least eight hours a week. The physician must also stay within 40 miles of the NP’s site. A narrow primary care exception applies. Our Mississippi collaborating physician requirements guide covers the proximity rule.
- Tennessee requires the physician to visit every remote practice site monthly. It also requires a personal review of 20 percent of charts every 30 days. Our Tennessee collaborating physician requirements guide covers the full oversight schedule.
- North Carolina requires joint approval from both state boards before an NP may begin practice. It also requires monthly quality improvement meetings for the first six months. Our North Carolina collaborating physician requirements guide explains the dual-board process.
- South Carolina requires the practice agreement to be produced within 72 hours of a board request. The physician’s usual practice must also reasonably match the NP’s scope. Our South Carolina collaborating physician requirements guide covers both standards.
- Indiana requires state board approval before prescribing can begin. It also requires a weekly chart review covering at least 5 percent of the NP’s charts. Our Indiana collaborating physician requirements guide covers the approval process.
States Requiring Collaboration for a Limited Period or Purpose
- Pennsylvania requires collaboration through a biennial agreement. The provider ratio cap was recently eliminated. Our Pennsylvania collaborating physician requirements guide has the current framework.
- West Virginia requires collaboration until an NP completes three years of documented practice. After that, independent prescribing becomes possible. Our West Virginia collaborating physician requirements guide covers the pathway.
- Kentucky requires two separate agreements. One covers nonscheduled drugs, and one covers controlled substances. Each carries its own four-year independence pathway. Our Kentucky collaborating physician requirements guide explains both tracks.
- New York requires a written practice agreement only for NPs under 3,600 hours of qualifying experience. Our New York collaborating physician requirements guide covers the hours threshold.
- Wisconsin currently requires a written collaborative arrangement for NP prescribing. Starting September 1, 2026, many NPs shift to full independent practice after completing a 750-hour mentorship. Our Wisconsin collaborating physician requirements guide covers the transition.
- Michigan lets NPs prescribe non-controlled medications independently. A physician’s written authorization is still required before an NP may prescribe any controlled substance. Our Michigan collaborating physician requirements guide explains this split framework.
- Arkansas requires state board approval of the agreement before an NP may prescribe. A 6,240-hour pathway leads to full independent practice. Our Arkansas collaborating physician requirements guide covers the approval and pathway.
- Illinois requires a written collaborative agreement until an NP completes 4,000 clinical hours and 250 CE hours. Our Illinois collaborating physician requirements guide covers the full threshold.
States With Full Practice Authority for NPs
Washington, Oregon, Idaho, Colorado, Maryland, Kansas, Utah, and New Mexico currently grant NPs full practice authority. No collaborating physician is required for NP practice in these states. Some employers or insurers may still request a collaborative relationship for credentialing reasons. State law does not require it there.
What a Compliant Collaboration Agreement Must Include
A collaboration agreement is a legal document, not a formality. State boards routinely request it during audits. A generic template can fail to hold up.
- A defined chart review schedule. The agreement must state how often charts get reviewed. That review must happen and be documented.
- Specialty alignment. Many states require the physician’s specialty to match or reasonably overlap with the NP’s practice area.
- Defined response times. The agreement should specify how the NP reaches the physician and how quickly a response is expected.
- A backup physician provision. Most states require a named alternate for when the primary collaborator is unavailable.
- Termination terms. The notice period required to end the agreement, and how active patients get handled.
What Separates a Real Agreement From a Signature on a Form
A matching service can connect an NP with a physician and generate a document in an afternoon. That alone does not make the arrangement compliant.
The gap usually shows up in three places. Chart review may be named in the agreement but never documented with dates and signatures. The agreement may use generic language that skips the specific state’s ratio caps or review cadence. The physician may already be collaborating with far more NPs than one person can meaningfully oversee.
None of these problems show up on the signature page. They surface only when a board opens an inquiry. By then, the NP is the one holding the risk.
A Note on Cost and Compensation Structure
Collaboration fees for NPs generally fall in a similar range to other collaborating physician arrangements. Most standard practices land between $499 and $750 a month. Our collaborating physician fees guide breaks down current market data in detail.
One structural point stands beyond price. Several states, including New York, prohibit compensation structured as a percentage of the NP’s practice revenue. Our New York guide covers this fee-splitting restriction directly. A flat fee for defined services is the safer structure in most states.
Does This Differ for Physician Assistants?
The term collaborating physician gets used for both NPs and PAs. The two frameworks are usually separate, though. NP requirements depend on the state’s nurse practitioner practice authority category. PA supervision or collaboration falls under a different statute, even within the same state.
A physician collaborating with an NP under one framework is not automatically qualified for PA collaboration. Each provider type needs its own compliant arrangement.
Telehealth and Multi-State NP Practices
A collaborating physician’s license only covers the state where they are licensed. An NP treating patients by telehealth across several states needs a compliant arrangement in every state involved. This applies to every state where a patient sits at the time of the visit. The NP’s home state alone is not enough.
This creates a real coordination problem for multi-state telehealth practices. A single collaborating physician licensed only in Texas cannot lawfully cover patients in Florida or Ohio. Each state requires its own properly licensed collaborating physician, matched to that state’s specific requirements.
GLP-1 and Medical Weight Loss Practices
Weight loss and GLP-1 prescribing add a layer of scrutiny beyond the baseline state practice-authority rule. Even in a full-practice-authority state, insurers, pharmacies, and compounding safeguards can still expect documented physician involvement. This applies to GLP-1 and weight loss programs specifically. Our look at GLP-1 and physician collaboration covers this layer in depth.
How to Evaluate a Collaborating Physician Before You Sign
A few direct questions separate a physician who can support the arrangement from one who cannot.
- Is the license active and unrestricted in the specific state where the NP practices?
- Does the specialty reasonably align with the NP’s practice area?
- How many other NPs is the physician already collaborating with? A physician spread across dozens of agreements cannot meaningfully review every chart.
- What is the documented chart review process, including frequency and how it gets logged?
- How will scope or protocol changes get handled once the agreement is signed?
A physician who cannot answer these questions with specifics is a warning sign. That physician is not ready to provide an arrangement that holds up under review.
Final Thoughts
Whether an NP needs a collaborating physician comes down to one question. What does the specific state require? The category label counts for less than the mechanics behind it. A Restricted-state agreement and a Reduced-state agreement can look similar on paper. They can still carry very different obligations. The agreement needs to match the real statutory requirement, not a generic template. That is what makes it defensible.
Are you a physician interested in collaborating with an NP-led practice? Collaborating Physician connects you with vetted clinics across 50-plus states. Every agreement is built around that state’s actual requirements. Applications take under ten minutes, and there is no cost to physicians at any stage.
NPs and clinics looking for a compliant collaborating physician can also get matched directly. Matches often happen within 24 to 48 hours.
Disclaimer: This content is for educational and informational purposes only. It does not constitute legal or medical advice. NP practice authority and collaboration requirements vary by state and change over time. Always verify current requirements with your state board of nursing and a qualified healthcare attorney.
Frequently Asked Questions
Does every nurse practitioner need a collaborating physician?
No, NPs in full-practice-authority states, including Washington and Colorado, may practice independently. NPs in restricted or reduced-practice states generally need one.
What is the difference between a collaborating physician and a supervising physician?
A collaborating physician relationship is usually consultative, with the NP retaining more decision-making. A supervising relationship generally implies tighter physician involvement.
Can my employer serve as my collaborating physician?
In most states, yes, if the employer is a physician or physician-owned practice. A non-physician business entity generally cannot serve as the collaborating physician itself.
What happens if my collaborating physician’s license lapses?
Prescriptive authority tied to that agreement is typically suspended until a compliant arrangement is restored. This creates immediate risk for the NP.
How much does a collaborating physician for an NP typically cost?
Most standard arrangements run between $499 and $750 a month, based on current market data. Higher-acuity specialties and multi-clinic arrangements can run higher.
Do NP and PA collaboration requirements use the same rules?
Usually not, since NP requirements depend on the state’s nurse practitioner practice authority category. PA supervision falls under a separate statute entirely.
