Contact Us

For all patient inquiries, please contact your practice location. For all HR, accounting and admin inquiries, please contact us using the link below:

UHA Headquarters
7999 Gateway Blvd., Suite 200 Newark, CA 94560


Accountable Care Organization

ACO Public Reporting

ACO Name & Location
7979 Gateway Blvd.
Suite 120
Newark, CA 94560

ACO Primary Contact
Primary Contact Name:  Soumya Mamidala
Primary Contact Phone Number:  510-662-5811
Primary Contact Email Address:  SMamidala@stanfordhealthcare.org

ACO Participants
University HealthCare Alliance
ACO Participant in Joint Venture:  No

ACO Governing Body
Member Last Name Member First Name Member Title/
Member (%) Voting Power Membership Type Legal Business Name/DBA
Bohman Bryan Board Chair (MD) 30% ACO Participant Representative University Healthcare Alliance
Krna Catherine Member 30% ACO Participant Representative University Healthcare Alliance
Sankary Richard Member (MD) 30% ACO Participant Representative University Healthcare Alliance
Woods George Medicare Beneficiary (MD)


10% Medicare Beneficiary N/A
Key ACO Clinical and Administrative Leadership
David Overton ACO Executive
Michael Kim, MD Medical Director
Monica Chu, JD Compliance Officer
Stephan Schwarzwaelder, RN Quality Assurance/Improvement Officer


Associated Committees and Committee Leadership
Committee Name Committee Leader Name and Position
Quality Assurance and
Utilization Management
Michael Kim, MD 
David Overton, RN 
Finance and Cost Analysis Michael Weatherford 


Types of ACO participants, or combinations of participants, that formed the ACO
ACO Professionals in group practice arrangements

Shared Savings & Losses

Amount of Shared Savings/Losses

  • First Agreement Period
    • Performance Year 2019 – $1,918,033

Shared Savings Distribution

  • First Agreement Period
    • Performance Year 2019
      • Proportion invested in infrastructure: 50%
      • Proportion invested in redesigned care processes/resources: 50%
      • Proportion of distribution to ACO participants: 0%

Quality Performance Results

Our ACO did not participate in Shared Savings Program in the 2018 performance year, therefore this section is not applicable at this time.

For previous years’ financial and quality performance results, please visit data.cms.gov.

Payment Rule Waivers

  • Skilled Nursing Facility (SNF) 3-day Rule Waiver:
    –Yes, our ACO uses the SNF 3-Day Rule Waiver, pursuant to 42 CFR 425.612.
  • Waiver for Payment for Telehealth Services:
    –No, our ACO clinicians do not provide telehealth services using the flexibilities under 42 CFR 425.612(f) and 42 CFR 425.613.

Beneficiary Information Notice
Click here to print your Beneficiary Information Notice.

If you are a beneficiary and would like information about MSSP, please call:

  • 1-800-MEDICARE (1-800-633-4227)
  • Teletypewriter users, please call 1-877-486-2048