Because the scope of modern medical knowledge is vast, most medical school graduates take additional training before entering clinical practice. Those choosing to become specialists take at least three years of residency training during which they are designated as PGY 1 (postgraduate-year-one resident), PGY 2 (postgraduate-year-two resident), and so on.
The recognized standard-setting organization is the American Board of Medical Specialties (ABMS), which is composed of 24 primary medical specialty boards and six associate members:
The American Hospital Association
The American Medical Association
The Association of American Medical Colleges
The Council of Medical Specialty Societies
The Federation of State Medical Boards of the United States, and
The National Board of Medical Examiners.
The American Osteopathic Association (AOA) sets standards for osteopathic physicians (DOs) who undergo residency training at osteopathic institutions.
Medical specialty boards require high standards of training and performance and ensure them by rigid examinations. Successful applicants receive diplomas and are considered "board-certified." The number of ABMS-approved credentials has risen sharply during the past ten years. Certificates are now available for 37 specialties and about 75 subspecialties. Most certificates expire within seven or ten years and require reexamination for renewal.
Physicians who complete all requirements for certification except the examination may be identified as "board-eligible." Although the American Board of Medical Specialties has officially abandoned this term, it is still in common use.
Personally I would go with the "Board Certified", but that's just me. I hope this helps and I hope that you have complete success with your procedure. Good Luck and God Bless.