FDA Investigator

Hasan A Irier

Latest inspection on record: Durham, United States, January 2024 · records back to 2016

Human Drugs

FDA inspection record · Last updated July 12, 2026

Overview

  • 29 inspections across 28 sites are on record.
  • 12 Form 483 observations are attributed to this investigator.
  • Most recent recorded activity is 2024-01-24.

At a glance

Inspections

29

Sites

28

Observations

12

Career since

Jun 2016

Recent inspections

Most recent inspections in the published record.

SiteDateCategoryForm 483
OpAns, LLC24 Jan 2024Human Drugs
DEVA HOLDING A S-KARTEPE URETIM TESISLERI6 Dec 2023Human Drugs
Rafarm S.A.19 May 2023Human Drugs
Raptim Research Pvt. Ltd.28 Apr 2023Human DrugsOn file
Texas Biolabs Private Limited21 Apr 2023Human Drugs

Sites inspected

OpAns, LLCDurham, United States1 insp.
Rafarm S.A.Paiania, Greece1 insp.
Raptim Research Pvt. Ltd.Navi Mumbai, India1 insp.

Co-investigators

Investigators who share inspections with this person.

Young M Choi5 shared
Mei Ou2 shared
Li-Hong Yeh2 shared
Amanda Lewin2 shared
Mohsen Rajabi Abhari2 shared

Full investigator report

Get the verbatim findings behind Hasan A Irier's 12 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