Appointment Hours:
Monday: 7 a.m.-3 p.m.
Tuesday: 7 a.m.-3 p.m.
Wednesday: 7 a.m.-3 p.m.
Thursday: 7 a.m.-3 p.m.
Friday-Sunday: Closed
New Patients
We are currently accepting new patients. Please fill out the new patient form by clicking the button below
About Us
We are based in Green Lake, WI and we call it home! At Green Lake Dental we strive to provide top quality dental care at an affordable price. We don’t want to be your dental provider for a day or an emergency; we want to be your dental provider for life!
We offer a wide variety of services at Green Lake Dental to meet any oral health needs and family dentistry is our top priority. Every team member has a family of their own and that’s how we view our patients. Come check us out today and experience the care that other patients have come to enjoy!

Dr. Kevin Castleberry
Wife Amanda, Daughter Johnnie, Sons Elijah, Nolan & Parker
We support Green Lake & the Chamber of Commerce where Dr. Castleberry serves as the Vice President of the Chamber.
Your Full Service Local Dentist…
Our goal is to treat your family’s teeth and mouth like we would treat our family’s. We specialize in family dentistry, and offer an array of specialty services to our patients, including sedation dentistry, implants, and more.
- Root canals
- Dentures
- Emergency dentistry
- Cosmetic dentistry
- Crowns
- Bridges
- Xrays
NO INSURANCE? NO PROBLEM
What Our Patients Have To Say…
Green Lake Dental and Dr. Castleberry are the best! They work hard to make sure your visit is comfortable and they do quality work!

I am a happy Green Lake Dental patient! The staff is warm, friendly and capable, just what one looks for in a dental office.

I was so impressed with the Dental office, Dr. Castleberry, the staff and the care that I received I actually have transferred all my records from Madison to Green Lake Dental.

I’m a big fan of Dr. Castleberry! He was my dentist when I was stationed at Ft. Campbell, KY and has been my best dentist in my 8 years in the army.

Dr. Castleberry explained every procedure that that was done. Questions were answered and I felt very satisfied with his work.

I worked with Dr. Castleberry for 4 years while we were both serving in the Army as dentists. As patients can usually judge character fairly well, I am confident you will find Dr. Castleberry to be personable and trustworthy. He will would never be the type to overcharge or overtreat.

I highly recommend Dr. Castleberry! He is very knowledgeable and takes the time to explain everything in detail and to make you feel as comfortable as possible. From the moment you walk in, you can expect excellent care in a relaxed atmosphere. He truly is going to be an asset to the Green Lake community!

He is a professional, well rounded dentist. He cares about his patients and will deliver quality dental care to people in the Green Lake community.

As a dentist, one of the ultimate compliments you can receive is having a fellow dentist state that they would trust you to work on their friends and family with no reservations. I can say that Dr. Castleberry has more than earned that compliment from myself.

Dr. Castleberry is a wonderful dentist. I have been his colleague for nearly a decade and have reviewed his work first hand. I highly recommend that you visit Dr. Castleberry if you are within 60 miles (or more!) of Green Lake, Wisconsin.

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Great place to go. I made the switch from dental associates. This place makes you feel like family. Highly recommend to anyone looking for quality care.
Ryan Bamberg
Amazing! I was really impressed! The office was up to date using very updated tech, they have with a very pleasant and responsive staff and dentist Dr. Castleberry seemed topnotch.
Jennifer Knickerbocker
I highly recommend Green Lake Dental! Just had My first visit here- and Carissa was fantastic with my teeth cleaning! She was Detailed, professional, has years of experience ,... read more and by far this was The Best teeth cleaning I’ve had yet! Seriously! I am so glad I found this Dentistry! Dr. Castleberry was great! His practice is professional, clean establishment, and the staff was professional and kind!
CRTNY A.
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This dental office experience was excellent from beginning to end. The front desk person was SO friendly and helpful booking my appointment and getting paperwork needed. The hygienist and dentist... read more were both very personable and professional. It was so great to go to a business that cares about their customers/patients. Excellent customer service, excellent care with my cleaning. Thank you! Highly recommend
Abigail Ladwig
Very nice place the people are very friendly. And did a super job on our cleaning. We will go back to them for our dental care. And thanks again for... read more the great job.
Anita Tormey
Very friendly and helpful staff who explained everything they were doing. Dr. Castleberry answered all my questions and told me exactly what needed to be done and... read more why.
Nancy Habeger
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We recently moved to the area and I visited Green Lake Dental to have my teeth cleaned . The entire experience was amazing! Sara, Jackie & Dr Castleberry... read more were super helpful, knowledgeable and welcoming. I highly recommend!
maureen jorgensen
Excellent experience!
Erin Maguire
I’m a new patient at this practice and I’ve been really happy so far. Great front office (including keeping me on a list for cancelations and then fitting me in... read more really quickly), a really positive experience with the dental Hygienist for my cleaning, a really clean and modern office, and very thorough but down to earth explanations from Dr. Castleberry. Glad they could fit me in!
Caitlin Cody
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This was a friendly and professional staff and I was treated like a star!!!
Kay Nell
All of the staff and Dr. Castleberry are wonderful. They made us feel very welcome and comfortable, and it was honestly the best experience I have ever had at the... read more dentist. My 6 year old son also had an appointment and he left with a smile. Everyone was very warm, from the second we walked in the door. We were greeted warmly and assisted quickly. The entire time I felt like they genuinely care about their patients and I knew we were in good hands. I strongly recommend this dental group! They are wonderful!
Margaret Pettinger
Everyone at Green Lake Dental is very nice. They go out of there way to be helpful. Claire has cleaned my teeth for many years. She... read more always does a great job! Thorough, very kind. I feel very comfortable and relaxed. Dr Castleberry took over when Dr. Ratering retired. He fit right in and we are happy with the care he provides. 9/6/23 updated I have had many visits with Dr Castleberry since my first visit with him. Two crowns, cavities, and cleanings. The one thing that is so awesome, Dr and his staff use all the latest technology. Very knowledgeable and reassuring minimal discomfort. I know that I am receiving the very best care. If you are looking for a Dentist don't hesitate to try Green Lake Dental!
Deb Trost
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I am a new patient to Green Lake Dental. I was impressed with the facility and staff. Very personable and knowledgeable. Definitely recommend and look forward to future visits.
tim paugels
Excellent job! Highly recommend.
David Mack
What a pleasant office and experience for my first cleaning since I had to find a new dentist! Would not hesitate to recommend at this time!
Kim Zills
Request an Appointment
Fill out the form below to schedule an appointment.
Note: If you are a new patient, be sure to also fill out the New Patient Forms, by clicking here.
Contact Us
Appointment Hours
Mon-Thurs: 7 a.m.-3 p.m.
Friday, Saturday, Sunday: Closed
(Other appointments by prior arrangement)
No Insurance? No Problem.
Learn more about our cost saving Bright Smiles Program.