Dr. Popp has the coveted title of Fellow in the following organizations
- American Academy of Ophthalmology, 1983
- American Society of Ophthalmic Plastic & Reconstructive Surgery
- American Academy of Facial Plastic & Reconstructive Surgery, 1986
- American Academy of Cosmetic Surgery, 1997
- American College of Surgeons, 1988
- American College of Oral & Maxillofacial Surgeons, 1992
- American Academy of Aesthetic & Restorative Surgery, 1995
Dr. Popp is also a member in good standing in the following organizations
- American Society Of Liposuction Surgery Inc., 1987
- Associate, European Society of Ophthalmic Plastic & Reconstructive Surgery, 1989
- American Society of Cosmetic Breast Surgery, 1997
- The International Society of Cosmetic Laser Surgeons, 1996
- EyePlastics®