"at the doctoral level" is correct and usable in written English.
You can use it when referring to something that is specific to doctoral programs or doctoral studies. For example, "In this study, we assess student performance at the doctoral level."
At the doctoral level, he teaches a course on Networks.
At the doctoral level, international students may be eligible to receive funding from their academic department.
The McNair Scholars Program prepares selected underrepresented or low-income UC Berkeley undergraduates for graduate study at the doctoral level.
He is the author or coauthor of three textbooks at the doctoral level and two at the MBA level.
At the doctoral level his rigorous supervision fostered a school of researchers in both Jewish and Roman law.
At the doctoral level, graduate education at Cornell occurs in fields of study, which span individual colleges and departments.
If you want to be a veterinarian and work in a zoo, you will need to continue your degree to the doctoral level at a school of veterinary medicine.
Stanford advanced clinical trainees and postdoctoral scholars are considered trainees in residence at Stanford University pursuing advanced studies beyond the doctoral level in preparation for an independent career.
Postdoctoral scholars are trainees in residence at Stanford University pursuing advanced studies beyond the doctoral level in preparation for an independent career.
to develop graduate training programs at both the master's and the doctoral levels that best serve the interests of Duke faculty and prospective graduate students.
The Cullen lab employs a diverse group of scientists, primarily at the post-doctoral level, performing high impact research in the field of molecular virology.
