Practicing physicians, governing.
PPA is led by nine board members who run their own physician-led practices. The decisions that shape the alliance are made by the people who live the model every day.

Jordan Shlain, MD
Board MemberFounder, Private Medical
San Francisco, CA
Founder of Private Medical, one of the country's longest-running concierge practices. An originator of the model and a long-running voice on physician-led practice economics.
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Matt Priddy, MD
Board MemberFounder, Priority Physicians
Indianapolis, IN
Board-certified family medicine physician at Priority Physicians and a decade-plus advocate for direct primary care. Past President of the American Academy of Private Physicians.
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Cari Dawson, MD
Board MemberFounder, Colorado Center of Medical Excellence
Denver, CO
Board-certified internist at the Colorado Center of Medical Excellence in Denver, practicing internal medicine since 2001. Clinical faculty at UCHSC and a 5280 Magazine Top Internal Medicine Doctor (2021, 2023, 2024), focused on preventative, cardiovascular, and women's health.
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Radley Griffin, MD
Board ChairFounder, Griffin Concierge Medical
Tampa, FL
Founder and CEO of Griffin Concierge Medical in Tampa. Board-certified family medicine physician, Castle Connolly Top Doctor, and chair of the PPA Board.
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James Pinckney II, MD
Board MemberFounder, Diamond Health
Dallas, TX
Founder of Diamond Physicians (2012) and CEO of parent company Diamond Health. Board-certified family physician, US patent holder, and medical host on Chasing the Cure Live.
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Jordan Lipton, MD
Board MemberFounder, Signature Healthcare
Charlotte, NC
Co-founder of Signature Healthcare (2003). Board-certified in emergency and ambulatory medicine; now focused on administrative leadership and business development.
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Callie Hollenshead, MD
Board MemberFounder, Harley Street Health
Dallas, TX
Board-certified family medicine physician practicing concierge medicine in Dallas. Founder of Harley Street Health; previously affiliated with the Methodist Premier Wellness concierge program.
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Jeannemarie Bozza, RN
Board MemberFounder, Commodore Concierge Nurse Management
New York, NY
CEO and founder of Commodore Concierge Nurse Management. Brings the nurse-led operational perspective on high-touch home nursing and patient advocacy.
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Barry Rotman, MD
Board MemberFounder, Banner Peak Health
Walnut Creek, CA
Founder of Banner Peak Health (2007) and chair of the PPA Technology and Innovation Committee. Trained at UCSF, with an Internal Medicine residency at UC Davis and fellowship training at Stanford and the Palo Alto VA.
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PPA membership is open to physician-led concierge, DPC, and hybrid practice owners. We review every application personally.