Statement of Changes in Beneficial Ownership (4)

FORM 4 [ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response... 0.5
	Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

1. Name and Address of Reporting Person * Clark Joseph T	2. Issuer Name and Ticker or Trading Symbol Surgical Care Affiliates, Inc. [ SCAI ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director                      _____ 10% Owner __ X __ Officer (give title below)      _____ Other (specify below) Chief Development Officer
(Last)          (First)          (Middle) C/O SURGICAL CARE AFFILIATES, INC., 510 LAKE COOK ROAD, SUITE 400	3. Date of Earliest Transaction (MM/DD/YYYY) 3/2/2017
(Street) DEERFIELD, IL 60015 (City)        (State)        (Zip)	4. If Amendment, Date Original Filed (MM/DD/YYYY)	6. Individual or Joint/Group Filing (Check Applicable Line) _ X _ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security (Instr. 3)	2. Trans. Date	2A. Deemed Execution Date, if any	3. Trans. Code (Instr. 8)		4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	3/2/2017		F		1246   (1)	D	$56.64	51876	D
Common Stock	3/2/2017		A		9710   (2)	A	$0	61586   (3)	D

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	4. Trans. Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Options to Purchase Common Stock	$13.94							(4)	3/6/2022	Common Stock	6098		6098	D
Options to Purchase Common Stock	$11.48							(5)	3/6/2022	Common Stock	18292		18292	D
Options to Purchase Common Stock	$12.41							(6)	5/6/2023	Common Stock	53658		53658	D
Options to Purchase Common Stock	$29.02							(7)	9/17/2024	Common Stock	30152		30152	D
Options to Purchase Common Stock	$38.35							(8)	6/4/2025	Common Stock	22692		22692	D
Options to Purchase Common Stock	$41.25							(9)	3/2/2026	Common Stock	17237		17237	D
Options to Purchase Common Stock	$56.64	3/2/2017		A   (10)		11516		(11)	3/2/2027	Common Stock	11516	$0	11516	D

Explanation of Responses:
( 1)	Represents shares of Common Stock withheld by the issuer to satisfy tax withholding obligations incident to the vesting and settlement on March 2, 2017 of restricted stock units of the issuer previously issued in accordance with Rule 16b-3 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). Such deemed disposition is exempt from Section 16(b) of the Exchange Act pursuant to Rule 16b-3(e).
( 2)	Grant of restricted stock units of the issuer, vesting ratably in equal annual installments over a period of four years from March 2, 2017, pursuant to the Surgical Care Affiliates, Inc. 2016 Omnibus Long-Term Incentive Plan (the "Plan"), which is exempt under Rule 16b-3(d) of the Exchange Act.
( 3)	Includes 43,618 shares of Common Stock underlying restricted stock units ("RSUs") of the issuer, all of which are subject to time-based vesting. The RSUs vest on the following schedule and are settled on each applicable vesting date: 4,237 RSUs vesting on June 4, 2017, 5,599 RSUs vesting on September 17, 2017, 5,761 RSUs vesting on March 2, 2018, 4,237 RSUs vesting on June 4, 2018, 5,599 RSUs vesting on September 17, 2018, 5,761 RSUs vesting on March 2, 2019, 4,237 RSUs vesting on June 4, 2019, 5,760 RSUs vesting on March 2, 2020 and 2,427 RSUs vesting on March 2, 2021.
( 4)	All of the options are time-based options which, as of March 6, 2013, were fully vested.
( 5)	All of the options are time-based options which, as of March 6, 2016, were fully vested.
( 6)	The option provides for vesting in equal annual installments on May 6, 2014, May 6, 2015, May 6, 2016 and May 6, 2017.
( 7)	The option provides for vesting in equal annual installments on September 17, 2015, September 17, 2016, September 17, 2017 and September 17, 2018.
( 8)	The option provides for vesting in equal annual installments on June 4, 2016, June 4, 2017, June 4, 2018 and June 4, 2019.
( 9)	The option provides for vesting in equal annual installments on March 2, 2017, March 2, 2018, March 2, 2019 and March 2, 2020.
( 10)	Grant of options to purchase shares of Common Stock of the issuer pursuant to the Plan, which is exempt under Rule 16b-3(d) of the Exchange Act.
( 11)	The option provides for vesting in equal annual installments on March 2, 2018, March 2, 2019, March 2, 2020 and March 2, 2021.

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Clark Joseph T C/O SURGICAL CARE AFFILIATES, INC. 510 LAKE COOK ROAD, SUITE 400 DEERFIELD, IL 60015			Chief Development Officer

Signatures
/s/ Richard L. Sharff, Jr., by power of attorney		3/6/2017
** Signature of Reporting Person		Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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