POWER OF ATTORNEY
      Know all by these presents, that the undersigned hereby
constitutes and appoints each of BJORN B. THALER, MATTHEW B. HEMINGTON,
LISA A. MANGO and IVY TSENG, signing individually, the undersigned's true
and lawful attorneys-in fact and agents to:
(1)	execute for and on behalf of the undersigned, in the
undersigned's capacity as an officer, director or beneficial
owner of more than 10% of a registered class of securities of
1Life Healthcare, Inc. (the "Company"), Forms 3, 4 and 5
(including any amendments thereto) in accordance with Section
16(a) of the Securities Exchange Act of 1934, as amended (the
"Exchange Act") and the rules thereunder and a Form ID, Uniform
Application for Access Codes to File on EDGAR;
(2)	do and perform any and all acts for and on behalf of the
undersigned that may be necessary or desirable to execute such
Forms 3, 4 or 5 or Form ID (including any amendments thereto)
and timely file such forms with the United States Securities and
Exchange Commission and any stock exchange or similar authority;
and
(3)	take any other action of any nature whatsoever in
connection with the foregoing which, in the opinion of such
attorney-in-fact, may be of benefit, in the best interest of, or
legally required by, the undersigned, it being understood that
the documents executed by such attorney-in-fact on behalf of the
undersigned pursuant to this Power of Attorney shall be in such
form and shall contain such terms and conditions as such
attorney-in-fact may approve in such attorney-in-fact's
discretion.
      The undersigned hereby grants to each such attorney-in-fact full
power and authority to do and perform any and every act and thing
whatsoever requisite, necessary or proper to be done in the exercise
of any of the rights and powers herein granted, as fully to all
intents and purposes as the undersigned might or could do if
personally present, with full power of substitution or revocation,
hereby ratifying and confirming all that such attorney-in-fact, or
such attorney-in-fact's substitute or substitutes, shall lawfully do
or cause to be done by virtue of this power of attorney and the
rights and powers herein granted.  The undersigned acknowledges that
the foregoing attorneys-in-fact, in serving in such capacity at the
request of the undersigned, are not assuming, nor is the Company
assuming, any of the undersigned's responsibilities to comply with
Section 16 of the Exchange Act.
      This Power of Attorney shall remain in full force and effect
until the earliest to occur of (a) the undersigned is no longer
required to file Forms 3, 4 and 5 with respect to the undersigned's
holdings of and transactions in securities issued by the Company, (b)
revocation by the undersigned in a signed writing delivered to the
foregoing attorneys-in-fact or (c) as to any attorney-in-fact
individually, until such attorney-in-fact is no longer employed by
the Company or Cooley LLP.  The undersigned hereby acknowledges that
this Power of Attorney supersedes, revokes and terminates any power
of attorney executed by the undersigned prior to the date hereof for
the purposes listed above.
      IN WITNESS WHEREOF, the undersigned has caused this Power of
Attorney to be executed as of Date: September 1 2021.

/s/ Mary Ann Tocio