Meet the Staff

At Rockville Concierge Doctors, our staff is an integral part of our practice. As our patient, you will quickly realize that they indeed help make our practice truly special. Always compassionate, cheerful, and knowledgeable, they will happily assist you with your needs. They will get to know you on a first-name basis and go above and beyond to help make every visit a welcoming and pleasant experience.  

Becky Zik, Office Manager

Becky and her twin sister were born in Chicago, where she lived until graduating from Deerfield High School in 1980. Becky attended Drake University in Des Moines, Iowa, where she majored in advertising and minored in public relations and English. She graduated with a degree in journalism in 1984.

After college, Becky held managerial positions with Lancôme Cosmetics and several management and sales training companies before staying home to raise her two sons. She joined Rockville Concierge Doctors in 2013 as our office manager. She enjoys personal contact with patients and staff.

Becky has had many interests throughout the years including rebuilding antique automobiles, ceramics and pottery, and gardening. She is also an excellent Mah Jongg player and she is learning to play bridge. Becky has traveled extensively, having been to 42 of the 50 states, Canada, Mexico, and many European countries. She also enjoys weekend road trips.

Tiffany Squirewell, Receptionist and Medical Assistant

Tiffany grew up in Wheaton, Maryland, and now lives in Hagerstown. She has been working with Dr. Seidman since November 2002, prior to the establishment of Rockville Concierge Doctors.

Tiffany prides herself on being efficient and friendly, and enjoys being a part of our patients’ lives. She loves how supportive and friendly the staff and patients are. “It’s like having a second family,” she says.

Tiffany has four children and a cat named Emelia. She loves festive holidays and the excuse they provide for making homemade decorations with the kids.

Kelly Estrada, Medical Assistant

Kelly was born in Nicaragua but has lived in Silver Spring, Maryland, her entire life. She has worked in internal medicine since graduating from TESST College of Technology in 2010. She is now taking nursing classes at Howard Community College.

Kelly started working at Rockville Concierge Doctors in 2013. She enjoys working with Drs. Seidman and Possner, the rest of the staff, and our patients, all of whom are very friendly. If you ever need blood drawn, Kelly is an expert at making it as painless and quick as possible.

Kelly is married and has three boys and a German Shepherd named Bubbles. She enjoys playing video games with her boys and having movie nights every Friday. Kelly is a huge Baltimore Ravens fan and also enjoys watching her own boys play football.

Mallela Aguilar, Medical Assistant

MallelaMallela was born in Peru and now lives in Beltsville, Maryland, with her husband, two adorable daughters, and two dogs.

Mallela has been a medical assistant since 2010, joining Rockville Concierge Doctors in September 2017. Kind and caring, she has a soft touch when drawing blood. She enjoys working with the staff and doctors at Rockville Concierge Doctors and especially likes getting to know the patients.

When not at work, Mallela enjoys spending time with her family, including taking her girls to playdates with friends.

Want to meet the staff in person? Call (301) 545-1811 to schedule a complimentary meet-and-greet with them and Dr. Possner or simply fill out the form on this page.

Meet the Staff of Rockville Concierge Doctors-Primary Care Physicians Rockville Maryland

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