The skilled and caring staff at Grace Family Dentistry caters to the unique needs of each patient, providing personalized, individual attention and patient centered care. You can feel confident putting your dental care, and that of your family, in our hands.

Meet Our Team

Alex McCulloch, DDS | Grace Family Dentistry, Concord, NH

Alex McCulloch, DDS

Diana Carrillo, DDS | Grace Family Dentistry, Concord, NH

Diana Carrillo, DDS

Ruth Trinidad, DDS | Grace Family Dentistry, Concord, NH

Ruth Trinidad, DDS

Dr. McCulloch

Dr. Alex McCulloch is a graduate of California State University Hayward with a BS in Biology. He went on to graduate from the Marquette School of Dentistry in 1992. He completed a residency in Advanced Education in General Dentistry in the United States Air Force after completing dental school. He was selected as Junior Dental Officer of the year for his command in the US Air Force. Dr. McCulloch met his wife while stationed at RAF Croughton in England. Before coming to Grace Family Dentistry in 2000 he ran the dental program for the Cheyenne River Sioux Tribe in South Dakota. He enjoys spending time with his wife and daughters, playing tennis, kayaking and snow skiing.

Dr. Carrillo

Dr. Diana Carrillo attended the University of Central Florida in Orlando, Florida where she completed a Bachelor’s degree in Biology. Dr. Carrillo earned her Doctorate of Dental Surgery from Creighton University (Go Jays!) in Omaha, Nebraska in 2012 and joined Grace Family Dentistry following graduation from dental school. She is a general dentist at our practice. Dr. Carrillo was born in the United States to Venezuelan parents, she grew up in Venezuela and returned to the United States when she was 16. She and her husband, Luis, have been calling New Hampshire their home since June of 2012. In February of 2014, they welcomed their first child, a little boy named Sebastian. Dr. Carrillo enjoys spending time with her husband, son and dog Bruno as well as traveling, reading, and exercising. Dr. Carrillo is fluent in Spanish and is also currently learning Italian.

Following her dental education, Dr. Carrillo has completed many hours of continuing education in all areas of dentistry and enjoys the great variety of challenges that a general dentistry practice provides.

Dr. Ruth Trinidad

Dr. Ruth Trinidad is a Delta PPO provider and sees both children and adults. She graduated Magna Cum Laude from Grove City College with a BS in Biochemistry. Dr. Ruth Trinidad then went on to graduate from Tufts University School of Dental Medicine in Boston, Magna Cum Laude as well. She completed an AEGD (Advanced Education in General Dentistry) residency at Lutheran Medical Center at the UCSF campus and has been practicing dentistry in California since graduating. Dr. Ruth Trinidad, her husband, and daughter have now returned to New England, where she grew up.


143 Airport Rd.
Concord, NH 03301


Monday 7:30 a.m. - 4:30 p.m.
Tuesday 7:30 a.m. - 4:30 p.m.
Wednesday 7:30 a.m. - 4:30 p.m.
Thursday 7:30 a.m. - 4:30 p.m.
Friday 7:30 a.m. - 2:00 p.m.