601 13th St. NW, Ste. 900 South, Washington, DC, 20005, 
202-253-5455
601 13th St. NW, Ste. 900 South, Washington, DC, 20005, 
601 13th St. NW, Ste. 900 South, Washington, DC, 20005, 
975 F St NW, Suite 550, Washington, DC, 20004, 
3) BLUE CROSS BLUE SHIELD OF MASSACHUSETTS
5) CAMBIA HEALTH SOLUTIONS (FORMERLY KNOWN AS THE REGENCE GROUP)
6) CAREFIRST BLUECROSS BLUESHIELD
7) CHAPTER
8) CHILDREN'S HOSPITAL ASSOCIATION F/K/A NAT'L ASSOCIATION OF CHILDREN'S HOSPITALS
9) DAVITA INC.
10) FOUNTAIN HOUSE
11) GE HEALTHCARE
975 F St NW, Suite 550, Washington, DC, 20004, 
1) AMERICAN HOSPITAL ASSOCIATION
4) BLUE CROSS BLUE SHIELD OF MASSACHUSETTS
6) CAMBIA HEALTH SOLUTIONS (FORMERLY KNOWN AS THE REGENCE GROUP)
7) CAREFIRST BLUECROSS BLUESHIELD
8) CHAPTER
9) CHILDREN'S HOSPITAL ASSOCIATION F/K/A NAT'L ASSOCIATION OF CHILDREN'S HOSPITALS
10) DAVITA INC.
11) FOUNTAIN HOUSE
202-258-9381
975 F St NW, Suite 550, Washington, DC, 20004, 
975 F St NW, Suite 550, Washington, DC, 20004, 
975 F St NW, Suite 550, Washington, DC, 20004, 
3) BLUE CROSS BLUE SHIELD OF MASSACHUSETTS
5) CAMBIA HEALTH SOLUTIONS (FORMERLY KNOWN AS THE REGENCE GROUP)
6) CAREFIRST BLUECROSS BLUESHIELD
7) CHAPTER
8) CHILDREN'S HOSPITAL ASSOCIATION F/K/A NAT'L ASSOCIATION OF CHILDREN'S HOSPITALS
9) DAVITA INC.
10) FOUNTAIN HOUSE
11) GE HEALTHCARE