Her father has multiple dental implants and absolutely loves them. This joy led to him introducing his dentist to his daughter, Dr. Hsu, while she was still in college and in search of her career path at the University of California, San Diego. There, she achieved her Bachelor of Science in Biochemistry and Cell Biology with fields of focus in economics and Chinese while graduating Magna Cum Laude with Provost Honors. Dr. Hsu furthered her education, earning a degree in Dental Surgery from Columbia University in NYC. After completion of dental school, Dr. Hsu attended University of Washington where she obtained her specialty certificate in Periodontology and Dental Implantology whereas she defended her thesis in mucosal immunity to achieve a Master of Science in Dentistry. Dr. Hsu is an elected member of the Academy of Osseointegration, American Academy of Periodontology, and is recognized as The Top Periodontist in Bellevue Washington by Women in Medicine, July 2020.

She finished her Bachelor of Sciences degree in Biological Sciences, cum laude, at the University of the Pacific in 3 years and then went on to earn her Doctor of Dental Surgery degree with Honors at the University of the Pacific, Arthur A. Dugoni, School of Dentistry in San Francisco, California. She fell in love with periodontal surgery as she was shadowing her mother's periodontist while in dental school. Being the only applicant for periodontics residency in her class, she managed to do multiple periodontal surgeries in a dental school clinic before entering her residency.

Dr. Cha then completed an advanced specialty training program in Periodontics and Dental Implant Surgery at Oregon Health and Science University (OHSU) School of Dentistry in Portland, Oregon. She was a recipient of the Best Resident Research Award at OHSU.

Julianna P. Shamoon DMD was born and raised in Chicago, Illinois. Her parents moved to the United States nearly 50 years ago, and their dedication to achieving the American Dream allowed Dr. Shamoon to realize her own aspirations—finding a career that allows for professional and academic excellence, challenges the status quo through research and technology, and, most importantly, remains steadfast in its commitment to helping others.

Dr. Shamoon decided to pursue a career with Puget Sound Periodontics after attending a conference led by Dr. Kevin Suzuki. His message of patient-centered therapies that improved periodontal success and comfort resonated with Dr. Shamoon. Her resolve to pursue a career with PSP was further reinforced when she met Dr. Thomas Kang, whose energetic and personable nature, combined with impeccable surgical expertise, solidified her decision.