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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This was a friendly and professional staff and I was treated like a star!!!
Kay Nell
I have been going to Green Lake Dental for about five years and have never had a negative experience. The assistants are thorough and professional and Kevin always is very... read more up front about my dental health, explains the options carefully, but never pushes the most expensive option. I completely trust everyone at Green Lake Dental has my best dental interests at the fore and highly recommend them!!
Laird DeCramer
FINALLY! I have had the worst luck finding an amazing dentist and competent staff sine relocating from out of state. The search is now over! Let’s start at... read more the front office. Becky. I’ve worked in patient care and client relations for more than 30 years. Becky nails it! From my very first contact via telephone, Becky actually made me WANT to go to the dentist just to meet her! It was time for my bi-annual cleaning…past due actually because it takes MONTHS to get in most places. Nope. I had an appointment with the Hygienist within two weeks. Becky clearly has the front office handled! Thank you, Becky. Hygienist, Sarah. Equally amazing! She was very gentle and more thorough than any Hygienist has ever been. I’m confident that she polished every single surface of all my teeth! I truly enjoyed Sarah as she is light hearted, easy to talk to and very knowledgeable. Dr. Castleberry. Incredible. Most importantly, he validated issues that I have been having for quite some time instead of brushing off my concerns. He immediately had a conservative plan and approach ready for every single issue. I need a little work and figured it would be this Fall before I could get in. Nope. I’m on the schedule for next week! I hope to continue with Dr. Castleberry’s practice for the remainder of my lifetime dental needs. AND they have a nice, squishy little pillow for your head and neck in the chair and just like when I was a kid, they have many different polish flavors available!! Thank you, Green Lake Dental! You’re doing great!
Sarah Van Den Hout
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I was impressed the minute I stepped in the door and spoke with the receptionist. The waiting area is nice and modern and said this place has it together. Jenna... read more was very pleasant and accommodating as she cleaned my teeth. And I found the Dr. very personable.
Nancy Hoover
Everyone was professional and pleasant right from making the initial appointment. Jenna was very nice and we actually had a lot in common. She explained everything. Dr Castleberry was... read more very upfront about what needed to be done but did not push and left it totally up to me. It was a great experience.
Susan Schultz
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
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
Quick and easy! Very kind individuals! They do great work on top of that aswell!
Ryan Betlejeski
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As a first time patient with Green Lake Dental, I appreciated the ease of transferring my dental records and X-Rays over to Green Lake Dental from my previous dentistry, the... read more process was extremely simple and they took care most of the heavy lifting. Staff are friendly, professional, and personable making my dentistry visit to Green Lake Dental a comfortable one. I also appreciated the honesty of Dr. Castleberry as he shares his professional opinion with his patients but leaves the option up to the patients. Overall, I look forward to making Green Lake Dental my new dentistry moving forward!
Ryan
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.
I felt at home as soon as I walked in. Great people and atmosphere. They have accommodated me in every way that they could. The doctor is a fantastic dentist... read more with a great bedside manner, a gental touch, and a great staff. If you go anywhere else, you're not getting the best.
Michael
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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
I hadn't seen a dentist in several years due to a bad experience. Dr Castleberry and his staff made me feel welcome and comfortable. After my first appointment for x-rays,... read more thorough cleaning (Carissa had her work cut out for her !) and discussions, I am confidently going forward with other necessary work to improve my smile. Thank you to all !
Susan Hill
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
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.
Serving Patients from Surrounding Communities in Green Lake County & Beyond:
Green Lake Dental is located in the heart of Green Lake County, and we’re proud to serve families across the surrounding areas—Marquette, Waushara, Fond du Lac, and Dodge counties included. Whether you’re 5 minutes away or 35, we’re here to make your visit worth the drive.
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.



