TJ Parker

On June 28, 2018, Amazon announced that it would acquire the online pharmacy PillPack; the announcement identified Parker as PillPack’s co-founder and CEO.⁠[1]

About 11 months after the deal, CNBCCNBCCNBC is an American business and financial news cable channel launched by NBC in 1989; it merged with its rival FNN in 1991 and since January 2026 has been part of Versant Media Group, spun off from Comcast.Open the full entry described him as a pharmacist turned internet entrepreneur who still held the title of PillPack CEO; PillPack’s other co-founder was Elliot Cohen.⁠[2]

In December 2021, AxiosAxiosAxios is a US digital news media company founded in 2016 by former Politico executives Jim VandeHei, Mike Allen, and Roy Schwartz and launched in January 2017. It is known for short news items and industry newsletters in the “Smart Brevity” style, especially for its Washington political coverage, and publishes local news newsletters in cities across the United States through Axios Local. Since 2022 it has been owned by Cox Enterprises.Open the full entry reported that Parker and Cohen had been moved into consultant roles at Amazon Pharmacy; an Amazon spokesperson responded that the change was not a demotion and that both would continue to help with the company’s healthcare efforts. According to his personal website, he remained at Amazon through 2022.⁠[3][4]

General Medicine’s website says the company was founded in 2023 by TJ Parker, Elliot Cohen, and Ashwin Muralidharan and is based in San Francisco, with offices in Boston.⁠[5]

According to his personal website, he was previously a general partner at MatrixMatrix PartnersMatrix Partners, now branded Matrix, is a US early-stage venture capital firm with roots in Hellman, Ferri Investment Associates, established in 1977. Matrix was founded in 1982 and invests in technology companies from the idea stage through Series A.Open the full entry, where he led General Medicine’s early funding rounds and helped start, invest in, and advise healthcare and consumer companies.⁠[4]

On May 22, 2025, General Medicine announced its nationwide launch and disclosed $32 million in venture funding; the announcement described Parker as a partner at Matrix and the company’s lead investor, while co-founder Ashwin Muralidharan was CEO at the time.⁠[6]

On October 6, 2026, General Medicine announced a $120 million Series B led by Andreessen HorowitzAndreessen HorowitzAndreessen Horowitz (a16z) is a venture capital firm founded in 2009 by Marc Andreessen and Ben Horowitz. It invests from the seed stage through the growth stage and provides operational support to its portfolio companies.Open the full entry, bringing its total funding to $152 million; the announcement said Parker had joined full time as CEO that month, had served on the board since the company’s founding, and continues as a venture partner at Matrix, while founding CEO Muralidharan moved into the role of chief product officer.⁠[7]

Matrix’s team page lists him among its investors, with a focus on health tech and consumer, and associated companies including General Medicine, Headlight, and Mevo.⁠[8]

Matrix: Official website: https://www.matrix.vc/ (opens in a new window)⁠[8]

General Medicine: Official website: https://generalmedicine.co/ (opens in a new window)⁠[5]

Personal website: Public link: https://tjparker.com/ (opens in a new window)⁠[8]

X: Public account: https://x.com/tjparker (opens in a new window)⁠[4][8]

LinkedInLinkedInLinkedIn is a social networking platform for professionals. It was founded in 2002 by Reid Hoffman and others, launched in 2003, and listed on the New York Stock Exchange in 2011; after Microsoft acquired it for approximately $26.2 billion in 2016, it became a wholly owned Microsoft subsidiary. Its revenue comes from membership subscriptions, advertising, and recruitment solutions.Open the full entry: Public profile: https://www.linkedin.com/in/tjparker1/ (opens in a new window)⁠[8]