meet the doctors

Dr. Gianh Nguyen Portnoy, DDS
Dr. Gianh Portnoy

Dr. Gianh Nguyen Portnoy, DDS, came to the United States with her mother and two brothers in 1980. She earned Bachelor of Science in Biology and Biopsychology from University of Michigan in 1996. She gained her Doctorate at University of Detroit Mercy School in Dentistry in 2001. 

After graduation, Dr. Portnoy began practicing dentistry in the Lansing area and she’s been proud to call Okemos home ever since.  She lives with her husband and three children.  She enjoys cooking, snowboarding, tennis, traveling, knitting & crocheting.

Dr. Bachtrac Tu, DDS
Dr. Bachtrac Tu

Dr. Bachtrac Tu, DDS, came to Michigan with her family as a child.  Upon graduating from Jackson College, she went on to earn a Bachelor of Science degree in Biomedical Science from Western Michigan University, and subsequently graduated from University of Detroit Mercy Dental School, in 2001 with a Doctorate in Dentistry Surgery.

Dr. Tu enjoys spending time with her husband and her two daughters.  She also enjoys snowboarding, photography, knitting & crocheting, scrapbooking & art.

Dr. Portnoy and Dr. Tu met when they attended dental school together at the University of Detroit-Mercy in 1997. They discovered that they had a great deal in common: A passion for helping people, dedication to professional growth and pursuit of unparalleled excellence in patient care. They strive towards excellence through their advanced dental studies at the Pankey Institute.

After some years practicing dentistry separately in the Lansing area, they were thrilled to have the opportunity to join forces at their current location in Okemos in 2005. Both doctors enjoy doing all of the procedures for general dentistry, but Dr. Portnoy has a strong interest in cosmetic dentistry and dentures while Dr. Tu loves extractions and root canal therapy.

Both doctors feel strongly about making a strong positive contribution to Meridian Township and to mid-Michigan. They are active members of several local, regional and national professional and business organizations. They are dedicated to helping our neighbors in need through a variety of local activities and charitable donations.

Members of MDA (Michigan Dental Association), ADA (American Dental Assocation), CDDS (Central District Dental Assocation), MABA (Meridian Area Business Association), Lansing Regional Chambers, Donated Dental Services, The Pankey Institute.