Overview
- 113 inspections across 93 sites are on record.
- 202 Form 483 observations are attributed to this investigator.
- Most recent recorded activity is 2024-02-01.
At a glance
Inspections
113
Sites
93
Observations
202
Career since
Jan 2008
Recent inspections
Most recent inspections in the published record.
| Site | Date | Category | Form 483 |
|---|---|---|---|
| SPI Pharma, Inc. | 1 Feb 2024 | Human Drugs | |
| US Specialty Formulations LLC | 23 Jul 2019 | Human Drugs | View 483 → |
| Wyeth Pharmaceuticals Llc | 29 Aug 2017 | Human Drugs | |
| US Specialty Formulations LLC | 29 Aug 2017 | Human Drugs | View 483 → |
| Frito Lay, Inc. | 28 Sep 2016 | Foods & Cosmetics |
Sites inspected
SPI Pharma, Inc.Lewes, United States1 insp.
US Specialty Formulations LLCAllentown, United States2 insp.
Wyeth Pharmaceuticals LlcCollegeville, United States1 insp.
Frito Lay, Inc.York, United States1 insp.
Co-investigators
Investigators who share inspections with this person.
Brandi L Garbutt32 shared
Brandon J Brookens12 shared
Susan E Polifko11 shared
Margaret E Digennaro9 shared
Michael J Mero8 shared
Jason M Sluzynski7 shared
Bradley E Benasutti6 shared
Lauren N Shade6 shared
James M Mason5 shared
Kimberly A Dux3 shared
Full investigator report
Get the verbatim findings behind John M Mastalski's 202 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