Staff Directory

Contact Us

We are always available to answer any questions or address your concerns. Please contact us through our phone number or e-mail address during regular office hours . After hours, you may call our answering service.

We are especially interested in making all our patients feel right at home! We put your needs first to achieve efficient and comprehensive treatment. Our staff is trained and skilled, and we strive to provide energetic and fun-loving service to each patient. Each member of our treatment team is a registered assistant, and our office staff has years of experience in treating patients with the highest level of care. We strive to stay abreast of the latest in technological advances by regularly attending continuing education courses and seminars.



I started my dental career as a dental assistant in June of 1972. During my 40 years in the dental field, I acquired administrative duties and vast experience in scheduling, submitting insurance claims and billing. I have been working with Dr. Perez and Crooked Oak Dental Associates since 1995. I am semi-retired and currently working part-time as the Financial Coordinator. I will always comfort you with a smile and my goal is to always assist you with any insurance claim or billing concerns.

I have been married for 27 years to John Hazipetros and we have two sons, Yianis, who is living in New Haven, Connecticut and Andros, who is a student at the Temple School of Pharmacology in Philadelphia.



I joined the Crooked Oak Dental team with over 20 years of dental experience. I was hired in December of 2012 and am the Office Coordinator. I have experience in all positions of the office as well as experience working with dental insurance companies. Having worked in the insurance field, my goal is to assist patients in understanding their insurance plan and how to maximize their benefits.

My interests are reading and crocheting and I am involved with several programs and activities focused on improving the lives of special needs children and adults.



I started my career in health care as an LPN and switched to the dental field over 20 years ago. I moved to Lancaster from Williamsport, PA., and started working with Dr. Perez at Crooked Oak Dental Associates as a dental assistant in 2001. With my extensive dental experience, I have learned to appreciate a bright, white smile and will be here to assist you in achieving yours with our proven "at home whitening system" using custom trays and the #1 used whitening product in the country. In June, 2015, I decided to retire after a long and rewarding dental career. I will be assisting on a temporary basis, so I look forward to continue serving our family of patients.

My husband's name is Rick, and we have a daughter, a son and four grandchildren … priceless!



My career in the dental field started as a dental assistant after graduating from the Willow Street Dental Assistant Program. I continued pursuing my interest in dentistry by attending the Temple University School of Dental Hygiene where I received the Margaret A. Bailey Leadership Award. I have been working with Dr. Perez and Crooked Oak Dental as a dental hygienist since 1995. I am a lifetime member of the ADHA as well as local and state hygiene associations. I strongly believe in continuing education and strive to provide you with a comfortable dental experience at Crooked Oak Dental Associates, and educate you and assist you in achieving optimum dental hygiene and health.

I am married and enjoy the outdoors, fishing and am involved with my local church.



I began my dental career as a dental assistant in 2002, and graduated from the Harrisburg Area Community College dental hygiene program in 2008. In September of 2008, I started working with Dr. Perez at Crooked Oak Dental Associates as a Dental Hygienist. After over a decade in the dental field, I have had the wonderful opportunity of improving many smiles. It's a very rewarding feeling to know you can help build someone's confidence by improving their smile.



I started my dental career in 1989, and have been working as a Dental Assistant with Dr. Perez since November of 2007. I assist in all areas of dentistry and have Expanded Function experience. I am responsible for the proper maintenance of the sterilization equipment; ensuring your safety. With many years of experience, I have been cross-trained in administrative duties and can work the front desk of the practice as well.


Irina Z

Hey y'all! I'm Irina and the newest member at Dr. Perez's office. I graduated as a dental assistant from Greenville, S.C. Technical College in August 2016. I moved from South Carolina and began working with the Crooked Oak team in June of 2017. As well as assisting, I am being cross-trained to work at the front desk. This is my second year in the dental field and I love it! I realized how passionate I was about dentistry when I started my dental assisting program. I haven't stopped learning and I really enjoy seeing people smile when they leave the office.

I was born in Russia and I moved around a bit in America. I made Lancaster my home in April, 2017 when I married Boris. I have two brothers, two sisters and two amazing parents. I enjoy hiking, spending time with family, cooking and baking.