The licence comes from a state agency
Illinois doctors’ licences come from the Department of Financial and Professional Regulation, called IDFPR.
The State Medical Board advises that agency; it is not a separate licence issuer.
Source AA nurse practitioner has a defined role
A nurse practitioner is a nurse with extra training to assess health problems and provide treatment.
Full practice authority means permission to treat patients without a written agreement with a doctor, under Illinois rules in September 2026.
Illinois nurse practitioners can gain that permission after meeting the state’s experience, training and filing rules, as of September 2026.
Special limits on some controlled drugs still apply, as of September 2026.
Controlled drugs are medicines tracked under extra rules because they can be misused.
Source BA physician assistant may have prescribing authority
A physician assistant, or PA, is a licensed health professional who can take part in assessment and treatment.
In Illinois office care, a PA needs a written agreement with a doctor, who decides whether to allow prescribing, as of September 2026.
Hospitals and certain other care centres can give a PA permission to practise there without that written doctor agreement, as of September 2026.
If there is no written doctor agreement, ask who approved the PA’s role there and who is involved in decisions about your medicine.
Source CA licence is a starting check
A clear public licence record does not rate how good a clinician is.
Ask what experience they have with your health concern. Ask how they explain a decision to treat or to leave a treatment aside.
Source DNotes behind the answers
- Source A — Illinois law: The agency and its medical boardIllinois medical-law definitionsIllinois Medical Board lawBack to answer A
- Source B — Illinois law: Nurse practitioner authorityIllinois nurse practice authorityIllinois nurse agreement rulesBack to answer B
- Source C — Illinois law: Physician assistant agreementsIllinois physician assistant rulesBack to answer C
- Source D — Medical boards: What public records showMedical boards’ consumer explanationBack to answer D