Federally-Listed PSOs

Below is a list of PSOs that are currently listed by AHRQ. A health care provider can only obtain the confidentiality and privilege protections of the Patient Safety Act by working with a Federally-listed PSO.

Use the categories on the left to filter the list of PSOs or search a PSO name.

Note: AHRQ updates the PSO information contained within the directories weekly, as needed; changes are made when there are newly listed PSOs and/or when existing information requires revision. Changes that would otherwise be effective on a weekend day or holiday will be effective on the next business day. Information contained in the directories is based on attestations that the PSOs provide. To update PSO contact information, please use the Change of Listing Information form; to update profile information, please go to the PSO PPC Web site.

There are 82 total PSOs listed by AHRQ.

Center for the Assessment of Radiological Sciences PSO - P0149
Component of Parent Org(s):
  • Center for the Assessment of Radiological Sciences
Effective Date and Time of Initial Listing: August 28, 2013 12:01 AM ET
Street Address: 4913 Waukesha Street, Madison, Wisconsin 53705
PSO Phone Number: (608) 345-5795
Point of Contact: Bruce Thomadsen
Point of Contact Phone: (608) 345-5795
Point of Contact Email: brthomad@cars-pso.org (link is external)
Next biennial attestation for Two Contracts due between 08/28/2019 and 08/27/2021
Disclosures & Finding: None
Subject to FDA-Regulated Reporting Entity Guidance: No
Clarity PSO - P0015
Component of Parent Org(s):
  • Clarity Group, Inc.
Effective Date and Time of Initial Listing: November 19, 2008 12:01 AM ET
Street Address: 8725 W Higgins Road, Suite 810, Chicago, Illinois 60631
PSO Phone Number: (773) 867-8066
Point of Contact: Thomas F. Piotrowski
Point of Contact Phone: (773) 867-8066
Point of Contact Email: tpiotrowski@claritypso.com (link is external)
Next biennial attestation for Two Contracts due between 11/19/2018 and 11/18/2020
Disclosures & Finding: None
Subject to FDA-Regulated Reporting Entity Guidance: No
Pascal Metrics Inc - P0047
Effective Date and Time of Initial Listing: February 11, 2009 12:01 AM ET
Street Address: 1025 Thomas Jefferson Street NW, Suite 420 East, Washington, District of Columbia 20007
PSO Phone Number: (202) 333-9090
Point of Contact: Alejandra Alvarez
Point of Contact Phone: (202) 333-9090
Point of Contact Email: alejandra.alvarez07@pascalmetrics.com (link is external)
Next biennial attestation for Two Contracts due between 02/11/2019 and 02/10/2021
Disclosures & Finding: None
Vizient™ PSO - P0007
Component of Parent Org(s):
  • Vizient Inc
  • Vizient™ Data Services, LLC
Effective Date and Time of Initial Listing: November 5, 2008 12:01 AM ET
Street Address: 155 North Wacker Drive, 40th floor, Chicago, Illinois 60606
PSO Phone Number: 312-775-4100
Point of Contact: Ellen M. Flynn RN, MBA, JD
Point of Contact Phone: (312) 775-4292
Point of Contact Email: Ellen.Flynn@vizientinc.com (link is external)
Next biennial attestation for Two Contracts due between 11/05/2020 and 11/04/2022
Disclosures & Finding: None
Subject to FDA-Regulated Reporting Entity Guidance: No