# FDA Warning Letter: Maggie Jeffries, M.D. / Avanti Anesthesiology, LLC
> 2023-03-14 · Center for Drug Evaluation and Research | CDER · `70ebd13bab268622`
## Letter
- **Company:** Maggie Jeffries, M.D. / Avanti Anesthesiology, LLC
- **Posted Date:** 2023-03-14
- **Letter Issue Date:** 2023-03-03
- **Issuing Office:** Center for Drug Evaluation and Research | CDER
## Subject
Clinical Investigator
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*Source: [FDA Warning Letters](https://www.fda.gov/inspections-compliance-enforcement-and-criminal-investigations/compliance-actions-and-activities/warning-letters) · AI Analytics · CC0 1.0*