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
Looking to make your first appointment with Green Lake Dental? Save time by filling out our new patient registration form below.
About Us
Here at Green Lake Dental, we want you to become a patient for life. We treat our team and patients like family and strive to provide top-quality, affordable dental services in a comfortable environment. And we mean it – our chocolate chip cookies are made fresh every day!
Dr. Kevin Castleberry is a proud Wisconsinite serving patients in Berlin and other local communities. He has extensive experience providing dental services in the areas of family dentistry, sedation dentistry, and more. Wondering if Green Lake Dental is right for you? Give us a call or stop by to meet our team!

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.
Berlin’s favorite dentist….
Specializing in family dentistry, our team treats every patient with high-quality, affordable dental care. Our full menu of dental services include yearly cleanings, teeth whitening, wisdom teeth removal, and much 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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On my first visit, I immediately felt comfortable with the wonderful staff, and Dr. Castleberry is the best. I'd recommend him to everyone. He's not just personable and... read more extremely likable, he's an excellent dentist.
Carole DeCramer
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
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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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 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
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
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For my first time experience there I would say the Dental hygienist was very good at what she does. She made my first time experience there comfortable and painless. The... read more staff and Dentist were very friendly, and I didn't have to wait very long for my appointment. I would highly recommend this to anyone else.
Terry Harvey
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
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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Dr. Castleberry is a true professional and someone you can trust to help you with your dental care. I have been to many dentists over the years and he is... read more the best! His assistants and office staff are so very nice and treat all their patients with concern and respect. Thank you Green Lake Dental...😊😊😊
Snoop Doggy
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.
Excellent job! Highly recommend.
David Mack
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I went here for the first time and from the time I walked through the door to the time I left I felt at ease.This coming from someone with major... read more anxiety when going to the dentist . Everyone is very nice and takes the time to listen to your concerns. I definitely would recommend them if you are looking for a dentist.
Rosie Gillett
Quick and easy! Very kind individuals! They do great work on top of that aswell!
Ryan Betlejeski
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
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.