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 * De Weerdt Tom	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 Financial Officer
(Last)          (First)          (Middle) C/O SURGICAL CARE AFFILIATES, INC., 510 LAKE COOK ROAD, SUITE 400	3. Date of Earliest Transaction (MM/DD/YYYY) 3/15/2017
(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	3/15/2017		A		105   (1)	A	$48.13	37783   (2)	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	$41.25							(3)	3/2/2026	Common Stock	13792		13792	D
Options to Purchase Common Stock	$56.64							(4)	3/2/2027	Common Stock	9214		9214	D

Explanation of Responses:
( 1)	These shares were acquired under the Surgical Care Affiliates Teammate Stock Purchase Plan in transactions that were exempt under both Rule 16b-3(d) and Rule 16b-3(c).
( 2)	Includes 30,336 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: 7,284 RSUs vesting on May 19, 2017, 4,609 RSUs vesting on March 2, 2018, 7,284 RSUs vesting on May 19, 2018, 4,609 RSUs vesting on March 2, 2019, 4,608 RSUs vesting on March 2, 2020 and 1,942 RSUs vesting on March 2, 2021.
( 3)	The option provides for vesting in equal annual installments on March 2, 2017, March 2, 2018, March 2, 2019 and March 2, 2020.
( 4)	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
De Weerdt Tom C/O SURGICAL CARE AFFILIATES, INC. 510 LAKE COOK ROAD, SUITE 400 DEERFIELD, IL 60015			Chief Financial Officer

Signatures
/s/ Richard L. Sharff, Jr., by power of attorney		3/17/2017
** 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).
Note:	File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.