Overview
- 204 inspections across 180 sites are on record.
- 416 Form 483 observations are attributed to this investigator.
- Most recent recorded activity is 2026-03-23.
At a glance
Inspections
204
Sites
180
Observations
416
Career since
Oct 2014
Recent inspections
Most recent inspections in the published record.
| Site | Date | Category | Form 483 |
|---|---|---|---|
| CSA Medical, Inc. | 23 Mar 2026 | Medical Devices & Rad Health | View 483 → |
| Antron Engineering & Machine Co., Inc. | 13 Mar 2026 | Medical Devices & Rad Health | |
| SUMMA THERAPEUTICS, LLC | 26 Feb 2026 | Medical Devices & Rad Health | View 483 → |
| KSB Foods Co., Ltd | 18 Dec 2025 | Foods & Cosmetics | View 483 → |
| DAERYEOK, INC. | 10 Dec 2025 | Foods & Cosmetics |
Sites inspected
CSA Medical, Inc.Lexington, United States1 insp.
Antron Engineering & Machine Co., Inc.Bellingham, United States1 insp.
SUMMA THERAPEUTICS, LLCAllston, United States1 insp.
KSB Foods Co., LtdHwasung-Si, Korea (the Republic of)1 insp.
DAERYEOK, INC.Gimhae, Korea (the Republic of)1 insp.
Co-investigators
Investigators who share inspections with this person.
Nichole B Murphy8 shared
Nasser Yazdani7 shared
Asha Dwarka7 shared
Gena M Mckahan6 shared
Rosa M Santiago5 shared
Brian R Yaun5 shared
Rupa Pradhan5 shared
Emily J Schramm5 shared
Diantha M Bleau4 shared
John P Shelton4 shared
Full investigator report
Get the verbatim findings behind Thomas Siebertz's 416 observations
Source 483 PDFs, verbatim observations, and how each site responded, so your team knows what they cite before they arrive.
- New inspections and Form 483s, mapped to the CFR citation
- Warning letter outcomes, and the citation patterns they repeat
- Their co-investigators, so no surprises about who shows up on site