Exhibit 99.1

One Medical Announces Results for Second Quarter 2020

SAN FRANCISCO – August 12, 2020 – 1Life Healthcare, Inc. (One Medical) (Nasdaq: ONEM) today announced financial results for the second quarter ended June 30, 2020.

“Our human-centered and technology-powered model is delivering longitudinal care across digital and in-person settings, delighting members with better health and better care while reducing costs,” said Amir Dan Rubin, Chair & CEO of One Medical. “We continued to show the power of our model in Q2, delivering record membership additions, supporting employers through digital health combined with in-person care and testing, expanding into new markets, and growing our partnerships with leading health networks.”

Financial Highlights for the Second Quarter 2020

All comparisons, unless otherwise noted, are to the three months ended June 30, 2019.

Financial Outlook

One Medical provides forward-looking guidance on membership count, total net revenue, care margin, and adjusted EBITDA. Care margin and adjusted EBITDA are non-GAAP measures.

For the third quarter of 2020, we expect:

For the full year of 2020, we expect:

Management has not provided net revenue, care margin, or adjusted EBITDA guidance for the full year of 2020 because of uncertainties around the duration and extent of the continued COVID-19 pandemic and related community self-isolation practices and any impact that these two items may have on the company’s financial performance for full year 2020.

Management has not reconciled forward-looking non-GAAP care margin and adjusted EBITDA to their most directly comparable GAAP measures of loss from operations and net loss, respectively. This is because we cannot predict with reasonable certainty the ultimate outcome of certain GAAP components of such reconciliations, including market-related assumptions that are not within our control, or others that may arise, without unreasonable effort. For these reasons, we are unable to assess the probable significance of the unavailable information, which could

materially impact the amount of the future directly comparable GAAP measures. See below for additional important disclosures regarding our non-GAAP financial measures.

Quarterly Conference Call Details

The company will host a conference call to review the results today, Wednesday, August 12, 2020 at 2:00 p.m. (PT) / 5:00 p.m. (ET) to discuss its financial results. A live audio webcast and a supplemental presentation will be available online at https://investor.onemedical.com. The conference call can also be accessed by dialing 1-800-258-1651 for U.S. participants, or 1-612-979-9928 for international participants, and referencing conference ID 3165554. A replay of the call will be available via webcast for on-demand listening shortly after the completion of the call, at the same web link, and will remain available for approximately 90 days.

Key Metrics and Non-GAAP Financial Measures

Members: a member is a person who has paid for membership themselves or an employee or dependent whose membership has been paid for by an enterprise client for at least one year and who has registered with us. Members help drive membership revenue, partnership revenue and patient service revenue. We may offer trial memberships to enterprise clients, particularly for new services.  We do not include these employees as members until we have an annual enterprise contract. While the COVID-19 pandemic and related governmental and community responses have negatively impacted our ability to generate revenue from our members compared to prior periods, we believe growth in the number of members remains a key indicator of the performance of our business. This depends, in part, on our ability to successfully market our services directly to consumers and to employers that are not yet enterprise clients and our activation rate within existing clients. While growth in the number of members is an important indicator of expected revenue growth, it also informs our management of the areas of our business that will require further investment to support expected future member growth. Member numbers as of the end of each period are rounded to the thousands.

Reconciliations of non-GAAP financial measures to the most directly comparable financial results as determined in accordance with GAAP are included at the end of this press release following the accompanying financial data. We believe that these non-GAAP financial measures, when taken together with the corresponding GAAP financial measures, provide meaningful supplemental information regarding our performance by excluding certain items that may not be indicative of our business, results of operations, or outlook. However, non-GAAP financial information is presented for supplemental informational purposes only, has limitations as an analytical tool and should not be considered in isolation or as a substitute for financial information presented in accordance with GAAP. In addition, other companies, including companies in our industry, may calculate similarly-titled non-GAAP measures differently or may use other measures to evaluate their performance, all of which could reduce the usefulness of our non-GAAP financial measures as tools for comparison.

Care Margin: we define care margin as loss from operations excluding depreciation and amortization, general and administrative expense and sales and marketing expense. We consider care margin to be an important measure to monitor our performance, specific to the direct costs of delivering care. We believe this margin is useful to measure whether we are controlling our direct expenses included in the provision of care sufficiently and whether we are effectively pricing our services. We have provided below a reconciliation of historical care margin to loss from operations, its most directly comparable GAAP financial measure.

Adjusted EBITDA: we define adjusted EBITDA as net loss excluding interest income, interest expense, depreciation and amortization, stock-based compensation, change in the fair value of our redeemable convertible preferred stock warrant liability and provision (benefit) for income taxes. We report adjusted EBITDA because it is an important measure upon which our management assesses and believes investors should assess our operating performance. We consider adjusted EBITDA to be an important measure because it helps illustrate underlying trends in our business and our historical operating performance on a more consistent basis. We have provided below a reconciliation of historical adjusted EBITDA to net loss, its most directly comparable GAAP financial measure.

Available Information

One Medical intends to use its Company website (including its Investor Relations website) as well as its Facebook, Twitter and LinkedIn accounts as a means of disclosing material non-public information and for complying with its disclosure obligations under Regulation FD.

Forward-Looking Statements

This press release contains forward-looking statements about us and our industry that involve substantial risks and uncertainties and are based on our beliefs and assumptions and on information currently available to us. All statements other than statements of historical facts contained in this press release, including statements regarding our future results of operations, financial condition, business strategy and plans and objectives of management for future operations, are forward-looking statements. In some cases, you can identify forward-looking statements because they contain words such as “anticipate,” “believe,” “could,” “estimate,” “expect,” “intend,” “may,” “plan,” “potential,” “predict,” “project,” “should,” “will,” or “would,” or the negative of these words or other similar terms or expressions.

Forward-looking statements involve known and unknown risks, uncertainties and other factors that may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements. Forward-looking statements represent our beliefs and assumptions only as of the date of this press release.  These statements, and related risks, uncertainties, factors and assumptions, include, but are not limited to: the strength of the One Medical brand; member satisfaction with our services and support; the effects of the COVID-19 pandemic and related self-isolation and quarantine measures on our business, revenue, future growth and results of operations; anticipated membership growth and revenue potential from our members; our ability to retain members; our ability to successfully introduce and drive adoption of new products; changes in the pricing we offer our members; our relationships with our health network partners and enterprise clients and any changes to, accommodations in or terminations of our contracts with the health network partners or enterprise clients; our ability to improve cost of care and margins, including timing and expenses of new office openings and entry into new geographic markets; changes in laws or regulations; our involvement in litigation, including medical malpractice claims and consumer class actions; any governmental investigations or inquiries into or challenges to our relationships with the One Medical PCs under the administrative services agreements; our strategic plan; our financial outlook; our focus areas for investment and our investments; and our overall business trajectory.  These risks are not exhaustive. Except as required by law, we assume no obligation to update these forward-looking statements, or to update the reasons actual results could differ materially from those anticipated in the forward-looking statements, even if new information becomes available in the future. Further information on factors that could cause actual results to differ materially from the results anticipated by our forward-looking statements is included in the reports we have filed or will file with the Securities and Exchange Commission, including our Quarterly Report on Form 10-Q for the quarter ended June 30, 2020. These filings, when available, are available on the investor relations section of our website at investor.onemedical.com and on the SEC’s website at www.sec.gov.

About One Medical

One Medical is a membership-based and technology-powered primary care platform with seamless digital health and inviting in-office care, convenient to where people work, shop, live, and click. Our vision is to delight millions of members with better health and better care while reducing costs. Our mission is to transform health care for all through our human-centered, technology-powered model.

Headquartered in San Francisco, 1Life Healthcare, Inc. is the administrative and managerial services company for the affiliated One Medical physician owned professional corporations that deliver medical services in-office and virtually. 1Life and the One Medical entities do business under the “One Medical” brand.

Investor Contacts:

Rose Salzwedel, One Medical

Director of Investor Relations

investor@onemedical.com

(206) 331-2211

Westwicke

Bob East or Asher Dewhurst

(443) 223-0500

onemedical@westwicke.com

Media Contact:

Kristina Skinner, One Medical

Director of External Communications

Press@onemedical.com

650-743-5187

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(Amounts in thousands, except share and per share amounts)

(Unaudited)

Statements of Operations Data as a Percentage of Net Revenue:

Components of Net Revenue:

*Percentages may not sum due to rounding.

CONDENSED CONSOLIDATED BALANCE SHEETS

(Amounts in thousands, except share amounts)

(Unaudited)

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Amounts in thousands)

(Unaudited)

Select Metrics (As of Period End)

RECONCILIATION OF LOSS FROM OPERATIONS TO CARE MARGIN

RECONCILIATION OF NET LOSS TO ADJUSTED EBITDA