George C.K. Liu, MD
Jonathan Chang, MD
Bing Lu, MD
Ching-Yin Lam, MD
Alan Yao, MD
Alice Lau, MD
Bingjing Roberts, MD
HuiFang Xiao, MD
Pauline Lau, MD
Pei Gao, MD
Qiong Wu, MD
Rex H. Wu, MD
Stanley Ng, MD
Wenhong Zhou, MD
Zhao Hui Wang, MD
James Chang, MD
Man-Ling Ngai, MD
Shuk-Yi Lee, MD
Sun-Hoo Foo, MD
Thomas K. Chan, MD


President & CEO​ - Dr. George Liu

George C. K. Liu, MD, PhD​

President & CEO​

Dr. George Liu serves as the President, CEO, and CMO of the Chinese-American IPA Inc., d/b/a Coalition of Asian- American IPA (CAIPA), and as Chairman of the Asian-American Accountable Care Organization (AAACO) boards. As an internist and endocrinologist, Dr. Liu has been continuously providing quality care to his patients and contributing to the well-being of the Asian-American communities he has been serving since 1985. In addition to his private practices, he has been an attending physician at various hospitals, such as New York-Presbyterian Lower Manhattan Hospital, Mount Sinai Beth Israel, and NYU Langone Medical Center.

Dr. Liu has received numerous distinctions and honors, including an award from the American Diabetes Association. Top Doctors: New York Metro Area” list by Castle Connolly every year for the last 15 years, and the “Best Doctor” by New York Magazine. Dr. Liu is also recognized and received multiple citations from New York State Assembly, New York City Council, and Commendation from City of New York Office of the Controller. Over the years, he has had various research articles published in collaboration with other distinguished physicians.

Chief Operating Officer​ - Peggy Sheng

Peggy Sheng

Chief Operating Officer​

Peggy Sheng currently serves as the Chief Operating Officer of CAIPA. She joined the physician-member organization in 1995. During her tenure of over 20 years, CAIPA has flourished into a strong organization with over 1,000 providers serving ​more than a half-million Asian-American residents in the greater New York area. Peggy oversees all contract negotiations, quality, ​utilization management, and network development functions.

In addition to building CAIPA into a model IPA​, Peggy was instrumental in establishing the CAMS-CAIPA Community Service Fund to encourage the development and improvement of existing, culturally competent, community-oriented service programs as well as research and educational projects that benefit the Asian-American communities of New York. Furthermore, Peggy spearheaded the establishment of ​CAIPA Foundation, Inc. which is funded by donations from our physician​-members with the mission of offering older adults a holistic approach to improve and maintain a healthy and independent lifestyle. CAIPA Foundation ​promotes the physical, mental, and emotional wellbeing of seniors at its​ social daycare centers. ​CAIPA’s social daycare centers (SDCs) help older adults maximize their quality of life. Our SDCs are located in ​Sunset Park and Bensonhurst, the Chinese neighborhoods of Brooklyn.

Chief Medical Officer - Dr. Eliza Ng

Eliza Ng, MD, MPH

Chief Medical Officer​

Dr. Eliza Ng serves as the Chief Medical Officer of CAIPA. She is a Board-Certified Obstetrician and Gynecologist with extensive leadership experience in both payers and provider sectors. Prior to joining CAIPA, she was the Chief Medical officer of Population Health at RWJ Barnabas Health System. Her area of expertise includes population health and leading provider organizations to manage total cost of care. She is passionate about creating a system of care that supports high quality care and patients and providers quality of well-being.

Vice President, Health Economy & Data Analytics - Jing Shui

Jing Shui, MPH


Jing Shui joined CAIPA in 2019. Jing built a new Data Analytics unit and expanded the analytical capabilities at CAIPA to help the organization meet the challenges in the healthcare marketplace. Jing brings nearly 30 years of experience in health care and health insurance analytics. Jing started his professional career with the United Hospital Fund of New York, where he spent six years analyzing the financial and operational performances for the city’s voluntary and municipal hospital systems. Jing later moved into the health insurance industry and worked for NYLCare Health Plans as a member of its corporate Healthcare Analytics team.

Chief Technology Officer​ - Sam Pang- Sam Pang

Sam Pang, MS

Chief Technology Officer​

Sam Pang has more than 30 years of Information Technology and Software Development experience. He also had more than 10 years Healthcare IT experience. In 2008, Sam worked at Health and Hospitals Corporation and he built a Wristband Patient Tracking System. Four years later, Sam joined an EMR company as CTO. He led a 10 members team to redesign the EMR. After 2 years, this EMR company became profitable. In 2015, Sam joined CAIPA and he brought extensive IT and Healthcare knowledge. His team has designed and developed a suite of secured and automated systems – SFTP System, Workflow System, Provider Roster System and Point of Care System. Using AWS and other cloud service providers, Sam also redesigned CAIPA infrastructure to move to cloud.

Chief Administrative Officer​ - Karen Jung

Karen Jung

Chief Administrative Officer​

Karen Jung has over 10 years of experience in operations and organizational management. She manages the daily operations and office administration of all the CAIPA offices. In addition, she supports the hiring, new employee on-boarding and employee performance processes. Prior to joining CAIPA, Karen worked for various companies, including Technimetrics, idEXEC and OneSource Information Services. For these organizations, she assisted in the implementation of marketing programs and development of new product functionality and design.

Compliance Officer - Annie Chu

Annie Chu, MS, MHA

Compliance Officer

Annie Chu is responsible for leading the internal processes to promote and ensure compliance efforts with Federal and State laws, regulations and company policies as well as to oversee compliance activities that impact CAIPA and CAIPA provider members. She also works closely with CAIPA doctors and their employees to advocate and implement compliance programs, HIPAA compliance, and healthcare compliance education. Annie gained years of experience in different areas of the healthcare system, including academia, hospital and small practice.

Executive Vice President ​- Susan Lau

Susan Lau, MPH

Executive Vice President​

Susan Lau brings over 35 years of experience in the healthcare field to CAIPA. As Executive Vice President, Susan works closely with the Board and Executive Team to implement CAIPA’s vision, mission and strategic plans in managed care contracts, quality and utilization review, providers engagement, collaborations with hospitals, other healthcare organizations, and city, state, and federal governmental agencies. Susan also serves as the Chief Operating Officer of the Asian American Accountable Care Organization (AAACO) and administers the Medicare Shared Savings Program contract with the Center for Medicare and Medicaid Services (CMS), a federal government agency. The AAACO is an affiliated entity of CAIPA formed with the Korean-American Physician IPA (KAPIPA) and the Charles B. Wang Community Health Center. Susan also serves as the Executive Director of the CAIPA Foundation.

CAIPA Team Member - Derek Lam



Derek Lam currently serves as the Vice President of Network Management, Provider Relations and Credentialing and brings over 15 years of experience in the healthcare industry. Prior to joining CAIPA, he worked at Healthfirst, the largest managed care organization in Downstate New York. While at Healthfirst, he negotiated complex value-based and fee-for-service contracts and helped many of New York’s most prestigious hospitals and health systems manage their financial performance in Total Cost of Care risk arrangements.

Derek also worked at companies, like Bristol-Myers Squibb, AstraZeneca and Novartis, where he built relationships with many of CAIPA’s doctors. This sparked his interest in the complexities of healthcare delivery, especially the challenges of private practice.

Financial Controller​ - Kelly Kwok

Kelly Kwok, CPA


Kelly Kwok had worked at public accounting firms for more than 15 years and had been providing accounting services to CAIPA since 2005. Kelly joined Prager and Fenton LLP In February of 2001, and began her career as an accounting associate, providing financial and accounting services, including performing audits, preparation of financial statements and tax returns. She obtained her CPA license in 2003 and specialized in financial and professional services, construction, retail and not-for-profit organizations. She managed a broad array of client services, from preparation of audit and other attest financial statements, preparation of projections, bookkeeping assistance and consulting on complex transactions to day-to-day operations. She also has experience in tax planning and handling federal and multi-state tax filings for corporations, partnerships and high-net-worth individuals.

Senior Director Of Marketing & Communications - Cindy Lai

Cindy Lai


Cindy Lai joined CAIPA in 2018 with over 25 years of experience across strategic sales, marketing, member communications and provider relationships in both managed care and hospital settings in the tri-state areas (NY, NJ, PA). At CAIPA, Cindy oversees all aspects of provider communications across the organization to keep our provider members abreast of business operations, potential partnership opportunities, new business models and information technology to help maximize revenue and optimize quality performance in various valued-based care arrangements. Cindy is also accountable for supporting the membership growth of business partners as well as community outreach and engagement via different health initiatives to build brand equity in the healthcare arena for CAIPA.

Medical Director​ - Richard Ng

Richard Ng, DO

Medical Director​

As the Medical Director of CAIPA, Dr. Richard Ng leads the entire CAIPA Care Team. The Care Team involves care coordination at the IPA level. Currently, we are active in Transitional Care Management to reduce avoidable 30-day readmissions for patients with ambulatory sensitive conditions. Dr. Ng is interested in population health, medical-economics, end-of-life care, and best practices according to established guidelines. He obtained his medical degree from the New York College of Osteopathic Medicine in Long Island, New York. He finished a rotating internship at the Methodist Hospital in Brooklyn, and completed his medical residency in The Brooklyn Hospital Medical Center.

Executive Team: Sandra Mitchell

Sandra M. Mitchell, RN


Sandra M. Mitchell has been a Registered Nurse for 26 years. Prior to CAIPA MSO, she was the Vice President of Medical Management for a Management Service Organization. As VP, she worked with her team to consistently meet and exceed required Key Performance Indicators while ensuring the efficient delivery of patient-centered care.

Throughout her career thus far, Sandra has gained experience spanning both provider and payor environments with 20+ years in the Managed Care sector. Her primary focus includes Care and Utilization Management. She is also a proven transformational leader, showcasing outcome driven qualities by building synergistic teams and sustaining results for quality care.

Director Of Contract And Provider Relations - Irene Yu

Irene Yu


Irene Yu joined CAIPA as Director of Contract and Provider Relations in 2017. She has over a decade of experience from the New York City Healthcare system. In her current role, Irene is responsible for all aspects of contracting. Irene works closely with CAIPA providers and health plans to help resolve various issues that providers face on a daily basis. Prior to joining CAIPA, Irene worked at Healthfirst for 6 years where she gained experience in operations, physician contracting, claims adjudication, financial performance and quality programs. Irene also gained experience in building a physician network as well as managed contracts of large groups during her tenure at Northwell Health.

Director Of Operation- Amy Kwan

Amy Sheng


Amy Sheng currently serves as the Director of Operations at CAIPA, where she oversees the daily operations and the Asian Contact Center. Prior to joining CAIPA, Amy has 26 years of Call Center experiences with Walt Disney World. She had experience in resort reservations, payment operations, system security access, and product operations. Moved from Orlando to New York, Amy transition into Healthcare management.

Director Of Government Program - Cathy Wang

Cathy Wang, MS


Cathy Wang currently serves as the Director of Government Program for CAIPA. Cathy works closely with CAIPA providers to advocate and implement government initiatives, including the Quality Payment Program, Patient-Centered Medical Home (PCMH) and NY Medicaid EHR Incentive Program. Cathy also manages the Accountable Care Organization (ACO) Quality reporting and Promoting Interoperability (PI) reporting.

Director Of Diabetic Disease Management - Vivien Hui

Vivien Hui, MS, RD


Vivien Hui is a registered dietitian, certified diabetes care and education specialist certified in insulin pump management as well as a certified coder. As an experienced clinical professional, Vivien joined and served for four years in the Asian Diabetes Center as Assistant Director who governed the administrative operations and provision of Medical Nutrition Therapy/Diabetes Self-Management Services. Vivien also served as the faculty member of the Nursing Diabetes Champion Program and led diabetes projects at New York-Presbyterian Lower Manhattan Hospital. She will assist in the development and implementation of CAIPA's Disease Management programs in diabetes care and help CAIPA achieve CMS DSME certification. Vivien earned her Master’s degree in Business Management and Leadership at City University of New York School of Professional Studies and Bachelor of Science in Clinical Nutrition and Dietetics at North Dakota State University.

Executive Team

Shirley Huang

Director of Public Relations

Shirley Huang joined CAIPA in 2019 and currently serves as the Director of Public Relations. She has over two decades of experience from the New York City healthcare system, covering sales, marketing, branding, special projects and events, home care and urgent care center management. She also has a track record of executing high profile public, government and media relations programs. Shirley works closely with the Board and Executive Team to generate greater awareness about CAIPA - its mission and key programs - and to develop external relationships to position the IPA as the industry leader.