Meet Our Doctors

Dentist in Hanover, PA

Joan Werleman, DDS

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Hello, I am Dr. Werleman. I was born in Holland and raised on the Dutch island of Aruba. I received my Bachelor of Science Degree in Biology with a minor in Chemistry at Loyola University in New Orleans in 1988. I then obtained my doctorate’s degree in 1992 from the University of Maryland Baltimore College of Dental Surgery, the nation’s oldest and most prestigious dental institution. After receiving my Doctor of Dental Surgery (DDS) degree, I completed a General Practice Residency at York Hospital in 1993, and founded Dr. Werleman & Associates in 1995 after 2 years of community and public health service at Southeast Lancaster Health Services.

I have also completed a mini-residency training in Dental Sleep Medicine at Tufts School of Dental Medicine in Boston, MA from October 2014 – April 2015. The curriculum covered in-depth and detailed training in all aspect of sleep medicine and cranio facial pain and TMJ as it pertains to dental sleep medicine and the role dentists can play in helping treating patients with obstructive sleep apnea. The training involved lectures from doctors and clinicians in the Boston area including Harvard School of Medicine.

My entire team and I actively attend continuing education courses on a regular basis, and we are fully up-to-date on the latest practices and technology. I am a participating member in several professional associations, including:

  • American Academy of Cosmetic Dentistry (AACD)
  • American Dental Association (ADA)
  • Pennsylvania Dental Association
  • Hanover/Gettysburg Dental Society
  • American Academy of Dental Sleep Medicine (AADSM)
  • American Academy of Craniofacial Pain
  • CEREC Doctors

I enjoy visiting and spending time with my family in Aruba. On the weekends I can be found enjoying kayaking, biking, yoga, golf and traveling. I recently became a 200hr RYT Certified Yoga Instructor and have shared with many the healing and calming effect of the yoga practice. My three dogs Bailey, Retro, and Phantom keep me very busy with flyball competitions traveling throughout USA and Canada.


Jeffrey Rajaski, DDS

Hello!  My name is Dr. Jeffrey Rajaski.

I received my Bachelors degree in Biological Sciences from the University of Maryland, Baltimore County and my Doctor of Dental Surgery degree from the University of Maryland Dental School. I completed a two year residency at the University of Maryland Medical center where I received training in anesthesiology, head & neck oncology reconstruction, implantology and facial trauma surgery. After a short time in private practice I returned to the University of Maryland Medical Center to serve as the Division Head of Hospital Dentistry and Director of the Hospital’s Dental Residency Program.

I am an active member of numerous academic groups including the American Dental Association, the Maryland and Pennsylvania State Dental Associations, the Academy of General Dentistry and the American Dental Society of Anesthesiology.  I also currently sit of on the Board of Directors for the Maryland Dental Society of Anesthesiology.

Although I have returned to private practice, I still maintain part-time associate professor and clinical instructor positions at the Dental School’s Advanced General Dentistry Residency Program providing anesthesiology services for the University’s various post-graduate residency programs. I also teach dental students in the University’s dental clinic in Baltimore, MD and satellite clinic in Frederick, MD.  I conducts research in multiple fields, but focus my attention on anesthesiology, implants and new material testing and I have published numerous articles.

I reside in South Central Pennsylvania and  have two daughters.  I enjoy to fill my free time with playing the guitar, golfing, snow skiing, fishing and water sports.


Danielle Aiken, DDS

Hi there, I am Dr. Danielle Aiken.

I am originally from the sunshine state, down in Miami Florida. I received a Bachelor’s degree in Music, as well as a Minor in Business from Florida State University. I went on to obtain a Master’s degree in Music from DePaul University, along with a Pre-Med Baccalaureate degree from Northwestern University in Chicago. Finally, arriving at the decision to pursue dentistry, I made my way to Baltimore, where I graduated with a Doctor of Dental Surgery degree from the University of Maryland School of Dentistry.

My interest in dentistry was sparked while volunteering as an assistant at a community dental clinic. Having the opportunity to interact with my community members and contribute to the improvement of their oral health inspired me to continue my journey and become a dentist.

I am a passionate and perpetual learner in the field of dentistry. I enjoy being a part of, and actively participating in numerous dental professional groups including: the Academy of General Dentistry, the American Dental Association, and the Alpha Omega International Dental Society.

I enjoy playing the trumpet and the piano, biking, exploring new hiking trails, experimenting in the kitchen, and taking time out of my busy day to relax with some yoga and exercise.


Caitlin Crouse, DDM

Hi! My name is Dr. Caitlin Crouse.

I was born and raised in the Pittsburgh area. I received my Bachelors degree in Life Science from The Pennsylvania State University in 2013. I then obtained my Doctor of Dental Medicine degree from Temple University School of Dentistry in 2019. I went on to complete an additional year of training at the Wellspan York Hospital General Practice Residency where I graduated in June 2020. I am a current member in the American Dental Association and the Pennsylvania Dental Association.

I enjoy spending my free time with my family, especially my niece and nephews. On summer weekends, you can find me outside by the beach, lake, and pool or taking long walks on nearby trails!