Our leadership

Michael White
interim chief executive officer

Michael White

Michael White joined Providence Health and Services Oregon in 1992 and has served as Providence Health Plan’s Chief Financial Officer for the last nine years. Over his nearly 30-year career, he has held numerous roles within the Medical Group and Hospitals. His diversity of experience provides him unique insights of how the health plan can collaborate and integrate with health systems to improve the health and wellbeing of members. In addition to traditional finance functions, Michael oversees service operations, information services, actuarial services and clinical/financial analytics.

Prior to joining Providence, Michael worked 10 years at the internationally recognized public accounting firm Arthur Andersen and Company. He advanced to an experienced manager role and led the provision of services for several high-profile healthcare companies in the Pacific Northwest. He obtained his CPA license.

Michael graduated from University of Washington with a BA in Business with an emphasis in Accounting. He earned his MBA from the University of Oregon and holds a CPA license.

Aaron Bals
Chief compliance & Risk Officer

Aaron Bals

Aaron Bals is Providence Health Plan’s Chief Compliance and Risk Officer and leads regulatory compliance, risk management, and government affairs functions. He joined the company in 2014 to manage compliance for its commercial lines of business, as well as regulatory and government affairs. His responsibilities grew to include the privacy program, various contracting functions, and risk management advising.

Aaron’s experience in the early implementation of the Affordable Care Act both in management and as outside counsel helped Providence Health Plan become a leader in Oregon’s ACA markets. He now works to ensure compliance with applicable law across lines of business and geographies, provides strategic leadership in relation to enterprise risk, and ensures appropriate advocacy for public policy that is aligned with Providence’s mission and core values.

Prior to joining Providence Health Plan, Aaron was in private law practice in Portland, Oregon. His work focused on commercial litigation, appeals, and administrative law. He represented Providence in that capacity and provided general counsel advice with respect to health plan matters. He also served as a law clerk in the litigation section of the Oregon Department of Justice.

Aaron earned his Juris Doctorate from the University of Oregon School of Law. He completed his undergraduate studies at the University of Nebraska-Lincoln, majoring in Journalism and Political Science.


Brad Garrigues
Chief Sales Officer

Brad Garrigues

Brad has served Providence for more than 20 years in various roles within sales and finance. He is responsible for strategic leadership for sales, underwriting and reinsurance programs, as well as revenue growth for the health plan’s commercial, self-insured, individual, Medicare and pharmacy benefit management (PBM) programs. Brad has helped lead the organization to unprecedented growth as Providence now serves more than 600,000 members, making it one of the largest carriers in the Pacific Northwest.

Prior to his current role, Brad served as Senior Director of Sales & Account Services, where he was responsible for sales, member retention and service of insured and self-insured groups. Brad also managed the health plan’s underwriting department for 10 years, playing a significant role in the health plan’s financial success and membership growth. Prior to his time at Providence, Brad worked for ODS Health Plans (now Moda Health), as well as a property and casualty insurance company.

Brad graduated with distinction from Cornell University’s S.C. Johnson Graduate School of Management, earning an MBA. Brad also holds an MBA from Queen’s University in Kingston, Ontario and completed his undergraduate studies at Linfield University, graduating summa cum laude with a Bachelor of Science in Business-Economics. Brad is a veteran of the U.S. Army, receiving a Meritorious Service Medal for his service during Operation Desert Storm.

Robert Gluckman
Chief Medical Officer

Robert Gluckman MD, MACP

Robert Gluckman joined Providence Health and Services in 1992 and has served as Chief Medical Officer for Providence Health Plan since 2010. Dr. Gluckman brings a strong background in evidence-based practice, quality improvement and health care policy. He leads the Plan’s quality, care management and utilization management programs and oversees pharmacy benefit administration, provider contracting/relations and coding compliance.

Prior to joining Providence Health Plan, Dr. Gluckman served as Chief Medical Officer for the medial education clinics at Providence Medical Group and was on the faculty at the Internal Medicine Residency at Providence St. Vincent Medical Center. In his academic career, Dr. Gluckman focused on applying medical evidence to clinical practice with an emphasis on increasing the value of care delivered to patients. Dr. Gluckman is a distinguished leader in the internal medicine community, serving as Treasurer and member of the Board of Regents of the American College of Physicians (ACP), the country’s largest medical specialty society. While serving on the ACP Board, he chaired the Medical Practice and Quality Committee, Finance Committee and the ACP Services Political Action Committee. He has received numerous awards, including the ACP Oregon Chapter’s Laureate Award. He currently serves on the Board of the Oregon Medical Association and the Leadership Advisory Committee of the Oregon Data Collaborative.

Dr. Gluckman graduated summa cum laude in 1978 from the University of Illinois and earned his medical degree in 1982 from the University of Chicago. He completed his residency at Michael Reese Hospital in Chicago and is board certified in internal medicine.

Siv Larsen
Vice President of Program Integration

Siv Larsen

Siv Larsen joined Providence Health Plan in 2016 and currently holds the position of Associate Vice President of Program Integration. In this role, Siv has responsibility for the strategic direction, business development, and implementation of the management services organization arm of the organization which includes mergers and acquisition and strategic partnerships. Siv also leads transformational activities through the business process improvement and strategic initiatives.

Prior to joining Providence, Siv was Director of Data Strategy and Analytics with Health Republic Insurance and has more than 15 years’ experience in the health care sector, leading programs and initiatives in a variety of roles including analytics, business intelligence, operations, human resources, legal and finance. In addition to her health care experience, Siv has held roles in the airline, retail, manufacturing, and technology industries.

Siv holds an MBA from Marylhurst University, as well as Bachelor’s Degree in Human Resources from Evergreen State College. She currently sits on the board of Performance Health Technology and serves on several local community boards.

Nate Perrizo
Chief Information Officer

Nate Perrizo

Nate Perrizo joined Providence Health Plan as Chief Information Officer in October 2019. With over 20 years’ experience in delivering technology and administrative services in the health plan space, Nate provides leadership to the information services department aligning it with organizational vision and strategy. Nate also serves as the Chief Executive Officer of PH TECH, a wholly owned subsidiary of Providence Plan Partners, which delivers services to health plans as a Management Services Organization.

At PH TECH, Nate developed a full core operating system for health plans allowing PH TECH to collaboratively process claims, deliver customer service and manage the care of its customers’ members. Under his leadership, PH TECH grew from a pre-revenue company to the dominant health plan administrator in Medicaid managed care in the Pacific Northwest. Since its inception, PH TECH systems have processed over 84 million claims, $40 billion in billed charges and $10 billion in net payments.

Nate studied Computer Science at Western Oregon University while being a founding member of the PH TECH team.


Dan Ryan Interim CFO
interim chief financial officer

Dan Ryan

Dan Ryan joined the Finance team at Providence Health Plan in 2015, and was named Interim CFO in 2020. In the Interim CFO role, Dan provides leadership over the Plan’s Informatics, Actuarial, Accounting and Service Operations areas.

Prior to joining Providence Health Plan, Dan spent 25 years in the property casualty insurance industry, primarily with Liberty Mutual. Dan held multiple financial roles at Liberty in different business units and geographies, with the last being AVP and Financial Officer for Liberty’s largest business unit.

Dan also was the Vice President, Finance for a national insurance aggregator. Dan holds a Bachelor of Business Administration, Accounting degree from Portland State University, an MBA from Concordia University and he is a Certified Public Accountant.

Caresse Sakagawa
Vice President of Product Development, Marketing & Providence MCO

Caresse Sakagawa

Caresse is accountable for product strategy and execution across all lines of business as well as market expansions and line extensions; this is inclusive of individual, small group, large group fully insured, administrative services only and Medicare lines of business. Product development also consists of the health plan’s digital product portfolio that serves members, employer purchasers, producers, consumer prospects as well as providers. Additionally, Caresse is accountable for developing and executing marketing strategy inclusive of digital, social, all regulatory required member materials as well as corporate strategic communications. Most recently, the Providence MCO – a state of Oregon certified workers compensation program – was transitioned to Caresse’s oversight.

Caresse has over 20 years of product and marketing leadership experience and is classically trained in packaged goods with twelve years of health care experience. Prior to joining Providence, Caresse developed and led marketing strategies and teams at several different organizations including Regence BlueCross & BlueShield, Pacific Sun Industries and Johnson & Johnson. Caresse is an experienced marketing strategist, skilled at developing and leading product strategy and positioning, product launch and brand management. She has proven sales and revenue generation experience and is adept at leading and inspiring cross-functional teams to achieve corporate goals, adding value in many different environments from privately held start-ups to large publicly traded corporations.

Caresse earned her MBA from the NYU Leonard N. Stern School of Business, specializing in Statistics. She was also awarded the Graduate Teaching Fellow position for New Product Marketing and Marketing Strategies courses. Additionally, Caresse was the research analyst for the NYU marketing department where she applied statistical tools, marketing models and data analysis techniques for the purposes of market segmentation, user profiling and product positioning strategies. Caresse earned her undergraduate degree in Economics from Southern Oregon University.

Caresse is an Oregon native, with family roots in Hawaii. She enjoys being a mother, volunteering, golfing, snowboarding, backpacking and most of all spending time with family.

Dustin Yazell
Director of Strategic Planning

Dustin Yazell

Dustin Yazell serves as Providence Health Plan’s Director of Strategic Planning. With eight years’ experience in the payer and provider industries, Dustin is responsible for all components of short, intermediate and long-term planning. He is also involved in business development, market expansion and merger and acquisition activities across the organization.

He completed his undergrad studies at the University of Louisville and his MBA program at Syracuse University.

Outside of work, Dustin enjoys spending time with his daughter and rooting for the Portland Trailblazers.

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