Credentials
Is a nurse practitioner a doctor?
A nurse practitioner is **not** an MD or DO physician. A nurse practitioner holds an advanced-practice nursing license, which is legally different from a physician license and is issued by a nursing board, not a medical board.[2][5][17][3] Some nurse practitioners complete a Doctor of Nursing Practice (DNP) degree, which is a doctoral nursing degree, and may use the title Dr. to reflect that degree without being licensed as a physician.[7][17] In every state nurse practitioners can prescribe medications, but their scope of practice and whether they need physician collaboration, as in Texas, is set by each state’s licensing board.[5][17][9]
Nurse practitioner license vs physician license
Nurse practitioners are advanced practice registered nurses who must first be licensed as registered nurses and then obtain a separate advanced-practice nursing license from a state board of nursing.[2][5][17][3] MD and DO physicians hold a different kind of license issued under medical practice acts and overseen by state medical boards, which the Federation of State Medical Boards describes as responsible for licensing physicians and regulating medical practice.[5][17][7][12][2][3][0] This means a nurse practitioner’s authority comes from nursing statutes and nursing boards, not from a physician (MD or DO) medical license.[5][17][18][7][2]
DNP degree and use of the title Dr.
The Doctor of Nursing Practice (DNP) is a doctoral-level nursing degree, similar in academic level to other professional doctorates but focused on advanced clinical nursing practice.[7][17][2] A nurse practitioner who completes a DNP program has earned a doctoral degree and may use the title Dr. to reflect that degree, yet still holds an advanced-practice nursing license rather than a physician license.[7][17][5][3] A doctoral degree and a license to practice medicine are separate: the title Dr. comes from the degree, while the legal authority to practice medicine as a physician comes from an MD or DO license issued by a medical board.[7][12][5][0]
State practice authority and prescribing
According to the American Association of Nurse Practitioners state practice environment map, about 30 states plus the District of Columbia grant nurse practitioners full practice authority under their own license.[9] In these jurisdictions nurse practitioners practice and prescribe independently under the board of nursing, without a required collaboration agreement with a physician.[5][9][17] The remaining states, including Texas, treat nurse practitioner practice as reduced or restricted and require a formal physician collaboration or supervision agreement for at least some services.[5][9][3] Nurse practitioners can prescribe medications in every state, but the details of what they may prescribe, and whether supervision is required, are set in each state’s laws and rules for advanced-practice nursing licensure.[5][9][16][3]
Scope of practice and who sets the rules
Scope of practice describes the services a licensed professional is allowed to provide, such as diagnosing, treating, or prescribing, and is defined in state law and board rules.[5][18][17] For nurse practitioners, those rules are adopted and enforced by the state board of nursing that issues the advanced-practice license, such as the California Board of Registered Nursing or the New York State Education Department’s nursing office.[1][8][14][10] For physicians, scope is set by medical practice acts and enforced by medical boards that license physicians, as described in consumer resources from the Federation of State Medical Boards.[0][12] Credentials like NP certification or a DNP degree do not by themselves set scope of practice; the state board that issues the license does.[5][2][17]
How to confirm a nurse practitioner’s license and credentials
To understand whether a clinician is a nurse practitioner or a physician, patients can check license information through state board lookup tools or national registries.[5][3][0] The National Plan and Provider Enumeration System (NPPES) assigns NPI numbers and its public registry shows each provider’s taxonomy and credential listing, such as nurse practitioner, nurse practitioner specialties, or physician types.[2][3][0] State nursing boards and state medical boards separately list license status for nurse practitioners and physicians, which helps confirm whether someone holds an advanced-practice nursing license, an MD or DO physician license, or both.[5][0][14]