Who We Are

Bob Howard,
RDH, Owner and Proprietor

BobGraduated and licensed as a Registered Dental Hygienist in 1998, Bob has been a staunch advocate for children and their battle against oral health disparities. Bob has spoken before both the Washington State Senate and House of Representative, appeared on television and has been published both nationally and locally regarding disparities in health care for children. Bob’s belief is “Regardless of circumstance, every child should have access to oral health care.”

Lori Haley,
General Manager

LoriLori has been involved with management in the health care industry for over 20 years. Always an advocate for the underserved, Lori has found her passion working at Grinovations. “Striving to break down barriers between children and oral health care can be exhausting, but I find that I wake up every morning with a smile knowing that I am going to spend my day helping children.”

Marilyn Chew,
RDH, Clinical Lead

MarilynGraduated and licensed as a Registered Dental Hygienist in 1992, Marilyn is a past president of the Oregon State Dental Hygiene Association. Marilyn’s innovation and commitment to provide better oral health care for her patients has won her several national awards.






Kathy Bertsch
RDH, Clinical Lead

Graduated from Oregon Health Sciences University in 1980, Kathy has been a Dental Hygienist for over 30 years. Kathy worked in private practice for most of her career but now loves working at Grinovations. “My coworkers are great and the kids are super! Every day is filled with surprises. I look forward to seeing and helping my young patients.”