Exhibit 3.187

CERTIFICATE OF INCORPORATION

OF

GATOR ACQUISITION SUBSIDIARY, INC.

The undersigned, a natural person (the “Sole Incorporator”), for the purpose of organizing a corporation to conduct business and promote the purposes hereinafter stated, under the provisions and subject to the requirements of the laws of the State of Delaware hereby certifies that:

I.

The name of this corporation is Gator Acquisition Subsidiary, Inc.

II.

The address of the registered office of the corporation in the State of Delaware is 1209 Orange Street, City of Wilmington, County of New Castle, and the name of the registered agent of the corporation in the State of Delaware at such address is The Corporation Trust Company.

III.

The purpose of this corporation is to engage in any lawful act or activity for which a corporation may be organized under the DGCL.

IV.

This corporation is authorized to issue only one class of stock, to be designated Common Stock.  The total number of shares of Common Stock presently authorized is one thousand (1,000), each having a par value of $0.0001.

V.

A.The management of the business and the conduct of the affairs of the corporation shall be vested in its Board of Directors.  The number of directors that shall constitute the whole Board of Directors shall be fixed by the Board of Directors in the manner provided in the Bylaws.

B.The Board of Directors is expressly empowered to adopt, amend or repeal the Bylaws of the corporation.  The stockholders shall also have power to adopt, amend or repeal the Bylaws of the corporation; provided, however, that, in addition to any vote of the holders of any class or series of stock of the corporation required by law or by this Certificate of Incorporation,

the affirmative vote of the holders of at least a majority of the voting power of all of the then-outstanding shares of the capital stock of the corporation entitled to vote generally in the election of directors, voting together as a single class, shall be required to adopt, amend or repeal any provision of the Bylaws of the corporation.

VI.

A.The liability of the directors for monetary damages shall be eliminated to the fullest extent under applicable law.  If the DGCL is amended to authorize corporate action further eliminating or limiting the personal liability of directors, then the liability of a director of the corporation shall be eliminated or limited to the fullest extent permitted by the DGCL, as so amended.

B.Any repeal or modification of this Article VI shall be prospective and shall not affect the rights under this Article VI in effect at the time of the alleged occurrence of any act or omission to act giving rise to liability or indemnification.

VII.

The corporation reserves the right to amend, alter, change or repeal any provision contained in this Certificate of Incorporation, in the manner now or hereafter prescribed by statute, and all rights conferred upon the stockholders herein are granted subject to this reservation.

VIII.

The name and mailing address of the Sole Incorporator is as follows:

Megan Wesley
Holme Roberts & Owen LLP
1700 Lincoln Street, Ste.  4100
Denver, CO 80203

In Witness Whereof, this Certificate has been subscribed this 19th day of December, 2006 by the undersigned who affirms that the statements made herein are true and correct.

/s/ Megan Wesley

Megan Wesley, Sole Incorporator

2

CERTIFICATE OF AMENDMENT

OF

CERTIFICATE OF INCORPORATION

OF

GATOR ACQUISITION SUBSIDIARY, INC.

Pursuant to §241 of the Delaware General Corporations Law, the undersigned, being the Sole Incorporator of Gator Acquisition Subsidiary, Inc., hereby adopts the following Certificate of Amendment to the Certificate of Incorporation of Gator Acquisition Subsidiary, Inc. (the “Corporation”);

1.The name of the Corporation is: Gator Acquisition Subsidiary, Inc.

2.Article I of the Certificate of Incorporation is hereby amended to read as follows:

The name of the corporation is Nevada Red Rock Ambulance, Inc.

3.This amendment to the Certificate of Incorporation was adopted on the 1st of April, 2007, as provided in §241 of Delaware General Corporations Law by the sole incorporator of the Corporation.  No approval of the amendment to the Certificate of Incorporation by any person or entity other than the sole incorporator is required.

4.The Corporation has not received payment for any of its stock.

5.This amendment to the Certificate of Incorporation shall be effective upon acceptance for filing by the Delaware Secretary of State.

IN WITNESS WHEREOF, this certificate has been subscribed this 4th day of April, 2007, by the undersigned who affirms that the statements made herein are true and correct.

By:	/s/ Megan Wesley
Name:  Megan Wesley
Title:  Sole Incorporator

CERTIFICATE OF CHANGE OF LOCATION OF REGISTERED OFFICE

AND OF REGISTERED AGENT

OF

NEVADA RED ROCK AMBULANCE, INC.

It is hereby certified that:

1.The name of the corporation (hereinafter called the “corporation”) is:

NEVADA RED ROCK AMBULANCE, INC.

2.The registered office of the corporation within the State of Delaware is hereby changed to 2711 Centerville Road, Suite 400, City of Wilmington 19808, County of New Castle.

3.The registered agent of the corporation within the State of Delaware is hereby changed to Corporation Service Company, the business office of which is identical with the registered office of the corporation as hereby changed.

4.The corporation has authorized the changes hereinbefore set forth by resolution of its Board of Directors.

Signed on 10/11, 2007

/s/ William P. Sanger

Name: WILLIAM P. SANGER

Title:   CEO