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 93 total PSOs listed by AHRQ.

PLEASE NOTE: To search for a PSO by State, use the 2 letter state abbreviation. Example: Kansas = KS

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
PSO Mailing Address: 4913 Waukesha Street, Madison, WI 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)
Two Bona Fide Contract Requirement: Next attestation period is 08/28/2019 through 08/27/2021
Disclosures & Finding: None
Subject to FDA-Regulated Reporting Entity Guidance: No
The PSO Advisory, LLC - P0089
Effective Date and Time of Initial Listing: May 5, 2010 12:01 AM ET
PSO Mailing Address: 30 Cargill Rd, Cumberland, RI 02864
PSO Phone Number: (401) 228-7590
Point of Contact: William P Smith RPH, MS
Point of Contact Phone: 401-228-7590
Point of Contact Email: wpsmith@thepsoadvisory.com (link is external)
Two Bona Fide Contract Requirement: Next attestation period is 05/05/2020 through 05/04/2022
Disclosures & Finding: None
USAP PSO - P0178
Component of Parent Org(s):
  • US Anesthesia Partners
Effective Date and Time of Initial Listing: June 15, 2016 12:01 AM ET
PSO Mailing Address: 12222 Merit Drive, Suite 700, Dallas, TX 75251
PSO Phone Number: 972-663-8522
Point of Contact: Ann McFarland Limbach RN, JD, CPHRM
Point of Contact Phone: 205-678-8342
Point of Contact Email: ann.limbach@usap.com (link is external)
Two Bona Fide Contract Requirement: Next attestation period is 06/15/2020 through 06/14/2022
Disclosures & Finding: The Department of Health and Human Services determined no action was required regarding the PSO's relationships with the following contracting provider(s):
  • US Anesthesia Providers of Florida
Subject to FDA-Regulated Reporting Entity Guidance: No