1. Desert Cardiothoracic Surgeons
     Mesa, AZ
     Dudley Hudspeth, M.D.
     480-844-2020

 2. Arizona Heart Institute
     Phoenix, AZ
     Venkatesh Ramaiah, M.D.
     602-266-2200

 3. Univ. of California, San Francisco
     San Francisco, CA
     Darren Schneider, M.D.
     415-353-4366

 4. Stanford Univ. Hospital
     Stanford, CA
     Dan Sze, M.D.
     650-725-5202

 5. Swedish Hospital
     Englewood, CO
     David Porter, M.D.
     720-493-3406

 6. Univ. of Florda
     Gainesville, FL
     Anthony Lee, M.D.
     352-265-0605

 7. Mayo Clinic
     Jacksonville, FL
     Albert Hakaim, M.D.
     904-953-2077

 8. Emory Univ. Hospital
     Atlanta, GA
     Ross Milner, M.D.
     404-778-5451

 9. Northwestern Memorial Hospital
     Chicago, IL
     Mark Eskandari, M.D.
     312-695-4857

10. St. Vincent Hospital
     Indianapolis, IN
     Katharine Krol, M.D.
     317-583-7600

11. Ochsner Clinic
     New Orleans, LA
     Sam Money, M.D.
     504-842-4053

12. Union Memorial Hospital
     Baltimore, MD
     Frank Criado, M.D.
     410-235-6565

13. Univ. of Maryland Medical Center
     Baltimore, MD
     David Neschis, M.D.
     410-328-5840

14. Massachusetts General Hospital
     Boston, MA
     Richard Cambria, M.D.
     617-726-8278

15. Univ. of Michigan
     Ann Arbor, MI
     David Williams, M.D.
     734-763-0250

16. Barnes-Jewish Hospital
     St. Louis, MO
     Luis Sanchez, M.D.
     314-362-7408

17. Dartmouth Hitchcock Med. Center
     Lebanon, NH
     Mark Fillinger, M.D.
     603-650-8677

18. Newark Beth Israel Medical Center
     Newark, NJ
     Bruce Brener, M.D.
     973-926-7330

19. Albany Medical Center
     Albany, NY
     Manish Mehta, M.D.
     518-262-8720

20. Lenox Hill Hospital
     New York, NY
     Richard Green, M.D.
     212-434-3400

21. New York Presbyterian Hospital
     New York, NY
     James McKinsey, M.D.
     212-342-3255

22. New York Univ. Medical Center
     New York, NY
     Neal Cayne, M.D.
     212-263-7311

23. Strong Memorial Hospital
     Rochester, NY
     Karl Illig, M.D.
     585-275-7741

24. Univ. of North Carolina Hospital
     Chapel Hill, NC
     Mark Farber, M.D.
     919-966-3391

25. Meritcare Hospital
     Fargo, ND
     Corey Teigen, M.D.
     701-234-6236

26. Cleveland Clinic
     Cleveland, OH
     Sean Lyden, M.D.
     216-444-3581

27. Ohio State Univ.
     Columbus, OH
     Patrick Vaccaro, M.D.
     614-293-8536

28. Riverside Methodist Hospital
     Columbus, OH
     Gary Ansel, M.D.
     614-263-1011

29. Hospital of Univ. of Pennsylvania
     Philadelphia, PA
     Ronald Fairman, M.D.
     215-614-0243

30. Thomas Jefferson Univ. Hospital
     Philadelphia, PA
     Joseph Lombardi, M.D.
     215-955-8304

31. Univ. of Pittsburgh Medical Center
     Pittsburgh, PA
     Michel Makaroun, M.D.
     412-802-3028

32. St. Lukes Hospital
     Houston, TX
     Joseph Coselli, M.D.
     832-355-9929

33. Univ. of Virginia
     Charlottesville, VA
     Alan Matsumoto, M.D.
     434-924-9279

34. Sentara Norfolk General Hospital
     Norfolk, VA
     Noel Parent, M.D.
     757-622-2649

35. Washington Hospital Center
     Washington, DC
     John Laird, M.D.
     202-877-2191

36. Peter Lougheed Center
     Calgary, Canada
     Randy Moore, M.D.
     403-943-5467

37. Vancouver Hospital
     Vancouver, Canada
     Michael Martin, M.D.
     604-822-7076

38. Duke Univ. Medical Center
     Durham, NC
     Richard McCann, M.D.
     919-684-620