About Us

Your smile is a priority to our entire team.

We are committed to serving our clients in a gentle, understanding, and informative way. Northwood Dental is a trained and professional office that takes pride in getting to know our clients and providing personalized dental care. Our staff strives to best serve our clients by staying up-to-date with the latest training, education, products, techniques, and equipment. We offer general, cosmetic, and restorative dentistry. We also offer implants, crowns, bridges, dentures, and partials.

Our mission is to serve you with care.

We are a flexible dental practice that allows guests to easily schedule their appointments. We strive to provide exceptional service and focus on determining the needs and wants of our guests. All treatment plans are discussed with guests so they are informed and comfortable with their decision. We use quality products and our prices are competitive.

Meet the Team

Dr. Penfold

Dr. David Penfold

Dr. Penfold was born and raised in Osage, Iowa. He graduated from Osage Community High School in 2000.  Dr. Penfold attended the University of Iowa and obtained a Bachelor of Arts Degree in Psychology with a minor in Chemistry in 2005.  Following his undergraduate degree, he attended the University of Iowa School of Dentistry and graduated in 2009.  Upon graduation he worked as an associate dentist in Mason City and Nora Springs. In February 2010 Dr. Penfold purchased Northwood Dental and has since moved to his practice to its current updated location. Dr. Penfold attends several major dental continuing education courses every year in order to provide the most up-to-date dental treatment, and remain informed about the ever changing landscape of dental materials. He has been certified in implants, periodontal surgeries, orthodontics, botulin toxin, dermal fillers, sleep appliances, and migraine therapy.

Dr. Penfold married his wife Melinda in 2005. Together they have two sons, Ronan and Saxon. When he is not in the office he enjoys coaching youth sports, golfing, watching sports, and spending time with family.

JoAnn, RDH

JoAnn, RDH

Joann graduated from the dental hygiene program at Hawkeye Community College in 2011 and became a member of the team in April 2013. She knew at a young age that dental hygiene was the career path for her. She takes pride in putting patients at ease, providing quality care and helping her patients maintain a healthy smile for a lifetime. Joann is married to Bryce, and they have three sons, Sawyer, Clayton, and Walker. In her free time, she enjoys crocheting, gardening, cheering for the Iowa State Cyclones and the Green Bay Packers.

Lisa, RDH

Lisa, RDA

Lisa joined the team in April 2020 and brought with her several years of experience. She graduated from Minnesota State Mankato in 1995. Lisa remembers being interested in a dental career from when she had orthodontics as a teenager. Lisa enjoys the variety of patients, getting to know them, and educating them to improve their dental health. Lisa is married to Barry and has a daughter Erika. In her free time, Lisa enjoys golfing, boating, traveling, and spending time with friends and family.

Autumn, RDA

Autumn, Assistant

Autumn graduated high school in 2013 and is currently working on her associate’s degree. Autumn joined the team in June 2020. She is new to the field of dentistry but has found it to be very educational and rewarding. Autumn has two children, Aria and Grayson and they currently live in Northwood, IA. In Autumn’s free time, she enjoys reading, knitting, baking, and watching movies.

Nichole, RDA

Nichole, RDA

Nichole graduated from Hawkeye Community College dental assisting program in 2010 and became a member of the team in November 2019. The dental field was the career choice for her starting at a young age. She enjoys giving the best care to patients, getting to know them personally and the variety a day at the dental office can bring. She currently resides on an acreage near Northwood, IA, where she enjoys gardening, farming, and spending time outdoors. Go Hawks!

Cheryl, Office Manager

Cheryl, Office Manager

Cheryl has been with Northwood Dental since 1999. She graduated from Ellsworth Community College and has enjoyed working with patients and getting to know them since day one. She tries to make the patients’ experience as stress-free as possible from beginning to end with an emphasis on open communication between our office, our patients and specialists’ offices. Cheryl is married to her husband, Monte, and they have two children, Paige and Ross. Outside of the office, she also enjoys traveling, sporting events, and spending time with family and friends.