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Dr. Niemann works in Prince Frederick, MD and specializes in Dentistry and Endodontics.


Explains conditions and treatments
Takes time to answer my questions
Provides follow-up as needed

Based on patient feedback.


Dr. Niemann's Rating
Patient Perspective
5.0 Explains conditions and treatments
5.0 Takes time to answer my questions
5.0 Provides follow-up as needed
Office Rating
Showing ratings for:
272 Merrimac Ct, Prince Frederick, MD, 20678
n/a Average office wait time
2.0 Office cleanliness
3.0 Courteous staff
2.0 Scheduling flexibility
Nieman Ralph Walter Office
272 Merrimac Ct
Prince Frederick, MD, 20678
Showing 1-2 of 2 reviews
"The worst customer experience I’ve had for as long as I can remember, especially in the health industry. Until a few days ago, I didn’t even know places with zero customer ethics like that even existed. Brenda called me to verify my insurance information on January 3, a day prior to my appointment. I didn’t have all the details right away, but there was no need to be so extremely rude about it, speaking in such a condescending and demanding way. When I called back with the insurance details, Julia picked up the phone. I tried to clarify with her whether what happened with Brenda was an anomaly and if I could still expect to be treated in a humane way when I come to my appointment. The response was: “Well, what do you want?!” - “To understand whether you guys can provide a reasonably comfortable experience or if I should choose another provider” - “That would be your personal preference” (all that I got from her). Seeing no effort whatsoever on Julia’s part to put my client experience ...
and trust back on track, I made the last attempt at helping them make it right by asking to speak with Brenda’s manager. Julia said she was Brenda’s manager, which was very surprising for me to hear because a manager takes responsibility for the team and makes at least some effort to keep the client, none of which was done by Julia. Therefore, it looked more like one colleague covering for another than anything else. If the office managers in this clinic have so little interest in their patients' well-being and it’s so easy for them to mistreat clients, can I trust the doctor to be any different? Would I put my health and my safety (and my money) in their hands? No. I canceled my appointment and went with another provider (granted, there are many great local options) who not only had a friendly, helpful, and caring team but also was able to see me in a matter of a couple of days and already did what I needed to get done. "
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  • January 5, 2023
"Really unfortunate experience with Dr. Niemann in our family. My husband went to a consultation to fix a procedure from many years ago. He suggested a small procedure. We were getting married shortly after this first appointment, so my husband made it clear that he would not be scheduling this appointment for a few weeks. Apparently, an appointment was put on the books? No confirmation call was given, nothing. We received a bill in the mail a few weeks later for $150 due to a missed surgery appointment. He called and the very rude front desk girl told him that "it was on the books." We will never be going back there and it's unfortunate that their business practices are this bad."
  • April 13, 2021


Nieman Ralph Walter Office
272 Merrimac Ct
Prince Frederick, MD, 20678
21534 Great Mills Rd
Lexington Park, MD, 20653
3050 Crain Hwy Ste 303
Waldorf, MD, 20601
4 Industrial Park Dr Ste 4C
Waldorf, MD, 20602


This dentist accepts the following plans. This may include dental insurance as well as dental savings plans, an affordable alternative to dental insurance. With a dental savings plan, members can save 10-60% at the dentist. Click here to learn more.


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