Atlas

FDA Investigator

Darcel T Bigelow

Latest inspection on record: Oklahoma City, United States, April 2018

Biologics

FDA inspection record · Last updated July 12, 2026

Overview

  • 2 inspections across 2 sites are on record.
  • 0 Form 483 observations are attributed to this investigator.
  • Most recent recorded activity is 2018-04-27.

At a glance

Inspections

2

Sites

2

Observations

0

Career since

Apr 2018

Recent inspections

Most recent inspections in the published record.

SiteDateCategoryForm 483
Cytovance Biologics, Inc.27 Apr 2018Biologics
Siwa Biotech Corp.27 Apr 2018BiologicsOn file

Sites inspected

Cytovance Biologics, Inc.Oklahoma City, United States1 insp.
Siwa Biotech Corp.Oklahoma City, United States1 insp.

Co-investigators

Investigators who share inspections with this person.

Hector A Carrero2 shared
Priscilla M Pastrana2 shared
Meihong Liu2 shared
Teresita C Mercado2 shared

Full investigator report

Get the verbatim findings behind Darcel T Bigelow's inspection record

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