The Federation ACO, LLC is a physician-led partnership of Michigan providers working together to provide better care for patients, better health for populations and lower overall health care costs.

What’s an ACO?

Accountable Care Organizations (ACOs) are groups of doctors, hospitals, and other health care providers, who come together voluntarily to give coordinated high quality care to their Medicare patients. The goal of coordinated care is to ensure that patients, especially the chronically ill, get the right care at the right time, while avoiding unnecessary duplication of services and preventing medical errors. When an ACO succeeds both in delivering high-quality care and spending health care dollars more wisely, it will share in the savings it achieves for the Medicare program.

Medicare Shared Savings Program ACOs

For general questions or additional information about Accountable Care Organizations, please visit, read Frequently Asked Questions, or call 1-800-MEDICARE (1-800-633-4227). TTY users should call 1-877-486-2048.

Federation ACO, LLC
950 Trade Centre Way, Suite 200
Portage, MI 49002
Phone: 1-877-232-3614

ACO Primary Contact
Bill Mayer, MD, MPH
President and CEO
Phone: 269-552-4245

TIN Legal Business Name

Aaron M. VanWagnen, MD, PLLC
Advanced Dermatology, PLLC
Ali Orandi, MD, PLC
Alimenti Family Medicine
Allan L. Tompkins, MD, PC
Allergy & Asthma Specialists Of Lansing Pllc
Alli Med Pllc
Alliance Obstetrics & Gynecology, Pllc
Andrew M Lafleur Md Plc
Anesthesia And Pain Management
Araceli C Mesiona-Brucal Md Pllc
Arshad Aqil Md Pllc
Arthur R Vendola Md Pc
Ashok K Gupta Md Plc
Asthma & Allergy Centers Of Central Michigan, Plc
B. P. Rajesh, MD, PLLC
Beals Institute, PC
Berrien Regional Associates in Neurology, PLLC
Beverly Jarema
Bosworth Urgent Care Pc
Brad E Kremer Pllc
Brent J Raap Do Pc
Bronson Battle Creek Hospital
Bronson Lakeview Hospital
Bronson Methodist Hospital
Capital Cardiology, PC
Cardiology Group Of Lansing Pc
Cascades Urology P.C.
Cedar Street Family Medicine, PC
Center for Family Health
Charles J Taunt Jr Do Pc
Charlotte Yang
Cheryl A Colletti Do Pllc
Cornerstone Family Practice, PLC
Covenant Medical Center, Inc
Daniel Coffey
Daniel P Freeman, MD PC
David Halsey
David Prough
Dominador Laynes
Donald Brooks
Donald C. Jones, MD, PC
Donna M O’Neill, MD, PC
Doris Cataquiz
Dr Janet Sprague Do Pc
Dr Martins Foot And Ankle Clinic
Dr Steven L Drayer Pllc
East Lansing Orthopedic Association P C
Edgewater Family Health PLC
Edward W. Sparrow Hospital Association
Emergency Medical Associates, Pllc
EPMG of Michigan, P.C.
Erminda Marinas
Foremost Podiatry Pc
Garland Scott, MD
Gary Farhat
Gary Lynd
Gene E. Kielhorn, DO, PC
Great Lakes Family Health Center, PC
Great Lakes Gastroenterology, PLLC
Greater Niles Cardiology, PC
Gregory Optical Co.
Harold D. Sterling, Jr. Dpm, P.C.
Hospice at Home, Inc
Imdad H. Butt, MD, PC
J Wesley Mesko Md Pc
J.A. Consultants, LLC
Jackson Cardiology & Associates
Jackson Family Medical Pllc
Jackson Orthopaedic Care & Surgery PC
Jackson Pathology Associates, PC
Jackson Radiology Consultants, PC
James Bodrie
James LaFleur, MD
Janet Sprague
Jason Cochran Do Pc
Jeffrey Potts, MD
John D. Wenzel, DO, PLLC
John Flood
John M. Stafford, Md, And Associates, P.C.
John Mesko
John N Flood Do Pc
Kathleen Anzicek, DO
Kidney and Hypertension Specialists, PLLC
Lake Lansing Family Practice, PLLC
Lake Michigan Hand Center, PC
Lake Michigan Nephrology Llc
Lakeland Community Hospital, Watervliet
Lakeland Hospital At Niles And St Joseph, Inc
Lakeland Immediate Care Center
Lakeland Medical Practices
Lakeshore Cardiothoracic & Vascular Surgery
Lakeside Healthcare Specialists, PLLC
Lansing Cardiovascular Consultants, PC
Looking Glass Foot & Ankle Pc
Lorna G. Pinson, Md Pllc
Louis F Byrne Md Pc
Lucas A. Julien, MD, PLC
Lynn VanWagnen, MD, PC
Marc Keys
Mark Leventer
Matt T. Rosenberg, PC
Matthew Campbell MD, PLC
Memorial Hospital
Michael Swords Do Pllc
Michael Vanderwalker
Michigan Continuum Care Pllc
Michigan Gastroenterology Institute
Michigan Institute Of Neurological Diseases, Pllc
Mid-Michigan Gastroenterology Consultants, PC
Minoo Khetarpal Md Pllc
Moses Muzquiz, Jr, MD, PC
Nadeem Ullah, MD, LLC
OBHG Michigan, PC
Okemos Allergy Center, PC
Orthopaedic Specialist of Lansing, PLLC
Owosso Medical Associates, PC
Parminder Jaswal,Md,Plc
Patrick Noud
Patrick Wegman
Paul S. Kenyon, MD, PC
Philip Barker
Phillip Frantzis
Physician Anesthesia Service Pc
Pinson Urology Center, PC
Plasencia Family Medicine Pllc
Preecha Supanwanid, Md Pc
Pulmonary And Critical Care Consultants, Pllc
Pulmonary Clinics Of Southern Michigan
R M Beredo Md Pllc
Radiology Associates of Berrien County, PC
Rakesh Chokshi Md Plc
Robert Israel
Robert M Doane Md Pc
Ronald L Gonzales Md Pllc
Rose City Family Practice, PC
Ruth Yoon
Saginaw Valley Medical Care, PLC
Sajeda Nusrat Md Family Medicine Pllc
Scott E Beasecker, MD, PLLC
Sheryl Hasegawa Arthur Do Pllc
South Shore Women’s Health Care, PC
Southern Michigan Pain Consultants, PC
Southwest Michigan Center For Orthopaedic And Sports Medicine P
Sparrow Carson Hospital
Sparrow Clinton Hospital
Sparrow Ionia Hospital
Springcrest Family Physicians, PC
St. Johns Internal Medicine, PC
Steven H Edmondson Do, Therese Rouse Do & Frank L Schmid Do Pc
Subbarao Chavali
Summit Podiatry Group, PC
Surgical Specialists of St. Joseph, PC
Sutinderpal S. Judge, MD, PC
The Podiatric Surgeon, P.C.
Thomas A. Kelly, DO, PC
Tony Palmer, MD, PLLC
Total Family Health Care Plus Pllc
Total Family Healthcare P.C.
Tricity Internists
University Medical Specialties PC
W. A. Foote Memorial Hospital, Inc
Walter Korytowsky
Member First Name Member Last Name Member Title Position Member’s Voting Power Membership Type ACO Participant TIN Legal Business Name/DBA, if Applicable
Ronald Gonzales Chairman 1 ACO Participant Representative Ronald L. Gonzales Md Pllc
Kenneth O’Neill Secretary 1 ACO Participant Representative Lakeland Medical Practices
Doug Edema Treasurer 1 ACO Participant Representative Edward W. Sparrow Hospital Association
Sharon Deskins Voting Member 1 ACO Participant Representative Lakeside Health Care Specialists, PLLC
Scott Larson Voting Member 1 ACO Participant Representative Bronson Methodist Hospital
Courtland Keteyian Voting Member 1 ACO Participant Representative Jackson Family Medical PLLC
Kevin Albosta Voting Member 1 ACO Participant Representative Covenant Medical Center
Nancy Vannest Voting Member 1 ACO Participant Representative Bronson Methodist Hospital
David Halsey Voting Member 1 ACO Participant Representative David Halsey, MD
Mike Tobin Voting Member 1 ACO Participant Representative Edward W. Sparrow Hospital Association
Jerry Booth Voting Member 1 Medicare Beneficiary Representative  N/A
William Mayer, MD – ACO Executive
Kenneth O’Neill, MD – Medical Director
Ray King, MD – Compliance Contact
Ashutosh Goel, MD – Quality Assurance/Improvement Officer
Committee Name Committee Leader Name and Position
Clinical Transformation Committee Dr. Ken O’Neill
Communications & Education Committee Mr. Larry Daly, Chair
Information Technology & Business Intelligence Dr. Pankaj Jandwani, Chair
  • Networks of individual practices of ACO professionals
  • Partnerships or joint venture arrangements between hospitals and ACO professionals
  • Hospital employing ACO professionals
Amount of Shared Savings/Losses

– First Agreement Period

  • Performance Year 2018, $17,416,779
  • Performance Year 2017, $7,664,465

Shared Savings Distribution

– First Agreement Period

  • Performance Year 2018
    – Proportion invested in infrastructure: 13%
    – Proportion invested in redesigned care processes/resources: 12%
    – Proportion of distribution to ACO participants: 75%
  • Performance Year 2017
    – Proportion invested in infrastructure: 13%
    – Proportion invested in redesigned care processes/resources: 12%
    – Proportion of distribution to ACO participants: 75%
ACO# Measure Name Rate ACO Mean
ACO-1 CAHPS: Getting Timely Care, Appointments, and Information 84.63 86.14
ACO-2 CAHPS: How Well Your Providers Communicate 91.69 93.93
ACO-3 CAHPS: Patients’ Rating of Provider 90.85 92.45
ACO-4 CAHPS: Access to Specialists 78.99 81.50
ACO-5 CAHPS: Health Promotion and Education 59.51 59.26
ACO-6 CAHPS: Shared Decision Making 61.72 61.94
ACO-7 CAHPS: Health Status/Functional Status 73.26 73.35
ACO-34 CAHPS: Stewardship of Patient Resources 24.54 26.26
ACO-8 Risk-Standardized, All Condition Readmission 15.03 14.98
ACO-35 Skilled Nursing Facility 30-Day All-Cause Readmission Measure (SNFRM) 18.20 18.59
ACO-36 All-Cause Unplanned Admissions for Patients with Diabetes 38.90 37.01
ACO-37 All-Cause Unplanned Admissions for Patients with Heart Failure 78.22 76.75
ACO-38 All-Cause Unplanned Admissions for Patients with Multiple Chronic Conditions 59.41 59.00
ACO-43 Ambulatory Sensitive Condition Acute Composite (AHRQ Prevention Quality Indicator (PQI #91)) 1.69 1.98
ACO-11 Use of Certified EHR Technology 99.62 98.20
ACO-12 Medication Reconciliation Post-Discharge 96.73 85.91
ACO-13 Falls: Screening for Future Fall Risk 84.92 79.73
ACO-44 Use of Imaging Studies for Low Back Pain 66.81 64.36
ACO-14 Preventive Care and Screening: Influenza Immunization 69.82 72.71
ACO-15 Pneumonia Vaccination Status for Older Adults 80.39 75.97
ACO-16 Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow Up 93.17 76.83
ACO-17 Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention 46.15 72.81
ACO-18 Preventive Care and Screening: Screening for Clinical Depression and Follow-up Plan 50.00 66.74
ACO-19 Colorectal Cancer Screening 71.89 68.27
ACO-20 Breast Cancer Screening 75.10 71.96
ACO-42 Statin Therapy for the Prevention and Treatment of Cardiovascular Disease 81.86 81.47
ACO-27 Diabetes Mellitus: Hemoglobin A1c Poor Control 16.13 15.51
ACO-41 Diabetes: Eye Exam 58.47 52.42
ACO-28 Hypertension (HTN): Controlling High Blood Pressure 68.15 73.10
ACO-30 Ischemic Vascular Disease (IVD): Use of Aspirin or Another Antiplatelet 94.07 88.92

Please note, the ACO-40 Depression Remission at 12 months quality measure is not included in public reporting due to low samples.

Note: In the Quality Performance Results file(s) above, search for “Federation ACO, LLC” to view the quality performance results. This ACO can also be found by using the ACO ID A24538 in the public use files on

Payment Rule Waivers

Our ACO does not utilize the SNF 3-Day Rule Waiver.

950 Trade Centre Way
Portage, MI 49002