Yes. Physician assistants can prescribe medication in all 50 states and the District of Columbia, and that authority covers both everyday prescriptions and, in most states, controlled substances in Schedules II through V. The details vary by state, and any PA who prescribes controlled substances also has to hold a separate federal registration with the Drug Enforcement Administration.
What a PA Can Actually Prescribe
For most prescriptions a patient needs, a PA has the same practical authority as a physician. Antibiotics, blood pressure medications, antidepressants, diabetes drugs, statins, inhalers, and most pain relievers all sit within a PA’s standard prescribing scope. These non-controlled medications make up the bulk of outpatient prescriptions, and PAs write them routinely in every state.
Controlled substances are where the rules get more specific. The federal government sorts these drugs into five schedules based on their potential for misuse. Schedule I substances, like heroin and LSD, have no accepted medical use and cannot be prescribed by anyone. Schedule II covers powerful opioids such as oxycodone and fentanyl along with stimulants like amphetamine-based ADHD medications. Schedules III through V cover progressively lower-risk drugs, down to certain cough syrups containing small amounts of codeine.
Most states allow PAs to prescribe across Schedules II through V. A small number restrict or prohibit PA prescribing of Schedule II drugs specifically, and some cap the supply a PA can write for certain controlled substances. A common pattern limits an initial Schedule II prescription to a 72-hour supply, requires the PA to notify the supervising physician within 24 hours, and requires physician approval before the medication continues. Review intervals are often extended for chronic or terminally ill patients.
How State Law Changes the Answer
State law is where the real differences show up. Every state grants PAs some level of prescriptive authority, but the schedules covered, the paperwork required, and the degree of physician oversight are not uniform.1NCSL. Physician Assistant Practice and Prescriptive Authority
Kentucky has historically restricted PAs from prescribing legend drugs (prescription medications generally), though recent legislative proposals aim to expand PA authority there. At the other end, six states (Iowa, Montana, New Hampshire, North Dakota, Utah, and Wyoming) allow PAs to practice and prescribe without a mandated supervisory relationship as of late 2024, though PAs in those states are still expected to consult with other clinicians as appropriate. Most states fall between those poles, using a supervised or collaborative model that ties the PA to a named physician through a written agreement spelling out which medications the PA can prescribe and when the physician must review prescriptions.
The landscape shifts frequently, so a PA moving between states, or a patient trying to confirm what their PA can prescribe, should check the current rules with that state’s medical board.
DEA Registration and the MATE Act Training
Before prescribing any controlled substance, a PA has to register with the Drug Enforcement Administration and obtain a DEA number. This is a federal requirement that applies in every state, and it is separate from the PA’s state medical license. The DEA classifies PAs as “mid-level practitioners,” and the application requires proof of a valid, active state license along with any supervisory documentation the state mandates.2DEA Diversion Control Division. DEA Registration Applications – General Instructions An application submitted without valid state credentials is rejected without a refund.
Registration runs on a three-year cycle. The most recently proposed fee for practitioners and mid-level practitioners is $888 per three-year period, though the DEA adjusts this from time to time.3Federal Register. Registration and Reregistration Fees for Controlled Substance and List I Chemical Registrants
Since June 2023, every practitioner applying for a new DEA registration or renewing an existing one has to complete a one-time, eight-hour training course on treating patients with opioid and other substance use disorders. This requirement came from the MATE Act (Medication Access and Training Expansion Act) and applies to all DEA-registered prescribers except veterinarians.4Diversion Control Division. Medication Assisted Treatment PAs who graduated from an accredited program within five years of June 27, 2023, and whose curriculum already included at least eight hours of substance use disorder training, are considered to have satisfied the requirement automatically.5Diversion Control Division. Opioid Use Disorder – MATE Act Q&A
Telehealth Prescribing
PAs who treat patients over telehealth can prescribe controlled substances without an in-person examination under temporary federal flexibilities that started during the COVID-19 pandemic. The DEA and the Department of Health and Human Services have extended these rules through December 31, 2026.6Federal Register. Fourth Temporary Extension of COVID-19 Telemedicine Flexibilities for Prescription of Controlled Substances Under those rules, a DEA-registered PA can prescribe Schedule II through V controlled substances to a patient seen only via video or audio, if certain conditions are met.7Telehealth.HHS.gov. Prescribing Controlled Substances via Telehealth
This is a temporary policy. The DEA has been working toward a permanent framework, and whatever replaces the current rules could reinstate some form of in-person evaluation requirement. State telehealth laws may also add requirements beyond the federal baseline.
Prescription Monitoring Program Checks
Nearly every state now requires prescribers, including PAs, to check the state’s Prescription Drug Monitoring Program before writing a controlled substance prescription. PDMPs are electronic databases that track controlled substance dispensing in real time, so a prescriber can see whether a patient is already receiving similar medications from other providers. The goal is to catch potential misuse or dangerous drug interactions before another prescription is added.
Rules vary. Some states require a PDMP check before every controlled substance prescription; others require checks only for initial prescriptions or when prescribing above certain thresholds. Skipping a required check can expose a PA to discipline from the state medical board.
What Happens if a PA Prescribes Outside Scope
Prescribing a medication that falls outside the PA’s authorized scope carries serious consequences. That could mean a controlled substance the state doesn’t permit, a drug category excluded by a practice agreement, or a prescription written without required physician approval. State medical boards can suspend or revoke the PA’s license, and discipline often extends to the supervising physician as well, especially in states where a formal practice agreement defines the PA’s authority.
Federal consequences are possible too. Prescribing controlled substances without a valid DEA registration, or in violation of its terms, can lead to criminal prosecution under federal drug laws, and a PA’s DEA registration can be revoked if the underlying state license is disciplined.8Office of the Law Revision Counsel. 21 USC 823 – Registration Requirements
A Note on the Title Change
The profession is in the early stages of a title change from “physician assistant” to “physician associate.” Oregon, Maine, and New Hampshire have enacted legislation adopting the new title so far. The change does not affect scope of practice or prescribing authority in any state that has adopted it. If your PA introduces themselves as a physician associate, the answer to what they can prescribe is the same.
If you’re unsure whether your PA can prescribe a specific medication, ask. They’ll know their own scope in your state, and for most medications the answer is yes.