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Organizations Community Improvement & Capacity Building Ambulatory Surgery Center Association

Ambulatory Surgery Center Association

Fiscal year ending 2024. Filed on November 13, 2025.

277 S Washington Street 375
Village 901
Alexandria, Virginia 22314

Ambulatory Surgery Center Association (EIN: 20-2266365), also known as Asca, has filed an IRS Form 990 since at least fiscal year 2016. In its fiscal year 2024 IRS Form 990 filing, Ambulatory Surgery Center Association, a 501(c)(6) business league, reported compensation for 10 employees. Among the employees shown here, the average compensation is $295,005. The highest compensated employee at Ambulatory Surgery Center Association is William Prentice with fiscal year 2024 compensation of $822,097.

Revenue, expenses, and employee compensation

Revenue

$6,271,989

Expenses

$5,928,747

Employee compensation

$3,096,769
Revenue, expenses, and employee compensation over time

Reported Compensated Employees

William Prentice
Chief Executive Officer
$822,097
$603,017 $201,006 $18,074
John Greenwich
Chief Financial Officer
$542,149
$303,520 $192,023 $46,606
Kara Newbury
Chief Advocacy Officer
$305,179
$266,124 $6,126 $32,929
Kay Tucker
Communications Director
$280,283
$219,113 $21,670 $39,500
Gina Throneberry Director
Education and Clinical Affairs
$226,769
$32,470 $164,317 $29,982
Kwasi D Oppong-Wadee Director
Legislative and Political Affairs
$177,081
$109,880 No related comp$67,201
Jason Hawkins Director
Information Systems
$160,634
$84,989 $53,768 $21,877
Stephen Abresch
Director, Gov'T Affairs
$147,052
$127,367 No related comp$19,685
Shawn Bryant
Director, Meetings
$145,896
$307 $122,419 $23,170
Dee Bellfield-Ross
Director, Administration
$142,907
$55,805 $58,667 $28,435

Benchmark Employee Compensation

Non-Employee Board Members

Alfonso del Granado
Director
Amanda Hawkins
Former President
David Shapiro
Director
David Weinstein
Director
Gary Richberg
Vice President
Jon van Valkenburg
Director
Julie Lewis
Director Until 04/2024
Lisa Cooper
Director
Marie Edler
Director
Mark Wainner
President
Michael Patterson Imm
PAST President Until 04/2024
Rebecca Ziegler-Otis
Director Until 04/2024

Contractors

The Mcmanus Group
Legislative Professional Fees
$248,000
Asc Data
Commission on Sales
$235,186
Capitol Counsel LLC
Legislative Professional Fees
$180,000
Ecg Management
Legislative Professional Fees
$112,950

Mission Statement

THE AMBULATORY SURGERY CENTER ASSOCIATION (ASCA) ASSISTS AMBULATORY SURGERY CENTERS (ASCS) IN DELIVERING SAFE, HIGH-QUALITY, COST-EFFECTIVE PATIENT CARE.

Revisions to this organization profile

November 13, 2025:
2024 Ambulatory Surgery Center Association 990 filed
November 13, 2024:
2023 Ambulatory Surgery Center Association 990 filed
November 16, 2023:
2022 Ambulatory Surgery Center Association 990 filed

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Other organizations also named Ambulatory Surgery Center Association

Washington Ambulatory Surgery Center Association
Bellevue, Washington
Minnesota Ambulatory Surgery Center Association
ST Paul, Minnesota
Colorado Ambulatory Surgery Center Association
Salida, Colorado
Oregon Ambulatory Surgery Center Association
Salida, Colorado
Arizona Ambulatory Surgery Center Association
Scottsdale, Arizona
Tennessee Ambulatory Surgery Center Association
Tallahassee, Florida