Michael J. Urban DDS | Viviana P. Urban DDS
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Meet the Team

Michael J. Urban, DDS  |  Viviana P. Urban, DDS  |   Lifetime Smile™ Team 



Dr. Jennifer John is from Gaithersburg, Maryland and graduated from Gaithersburg High School. She earned her bachelor's degree from the University of Maryland Baltimore County in Biological Sciences. She went on to complete a Master's degree in Biological Sciences at Towson University. Dr. John completed her Doctor of Dental Surgery in 2014 from University of Maryland, Baltimore College of Dentistry. She moved to the Pennsylvania to complete her General Practice Dental residency at the Veterans Affairs Medical Center, Lebanon. She has gained experience in the dental management of medically compromised and geriatric patients both ambulatory and hospital based.

Dr. John is passionate about preventive dentistry and patient education. She enjoys working with kids and instilling good dental habits at an early age. Dr. John is proficient at various aspects of dentistry such as veneers, implants, endodontics and dentures. She enjoys attending continuing education courses in order to stay current with research, techniques and medical updates. She is an active member of the American Dental Association, Maryland State Dental Society and Pennsylvania Academy of General Dentistry. Dr. John holds a dental license for both Maryland and Pennsylvania.

Dr. John is also an active member in the community. She has volunteered at the Mission of Mercy in both Maryland and Pennsylvania which provides free dental care for individuals who cannot afford dental care. She was a volunteer dentist at the Veterans Affairs Medical Center in Lebanon, and provided dental care for veterans. She has also been on a mission trip to Guatemala, where she provided dental care to children at Mi Refugio. Dr. John is a member at the Church of the Redeemer and volunteers as an usher.

Dr. John loves traveling and has been backpacking through Europe, driven down Pacific Coast Highway and plans on going to Peru. She enjoys staying fit via dancing, running, biking and walking her dog Diego. Dr. John is glad to back home in Gaithersburg and is looking forward to working in Maryland.


Lori - Dental Hygienist

Hi my name is Lori, and I am a Registered Dental Hygienist.  I graduated from Allegany College of Maryland Dental Hygiene School in 1985.  I gained my experience working with a periodontist for five years and with Dr. Melvin Arnold, a general dentist, for twenty years.  Working with Dr. Arnold was very special to me since he is my father and he showed me the importance of hygiene visits, diagnosing early and treating properly to keep a healthy smile.  I also learned to have fun with patients and the team I work with.  I joined the Lifetime Smile™ team in 2006, which I am thrilled to be a part of.  Dr. Viviana and Dr. Michael are very committed to taking care of patients by reserving the proper time to evaluate, diagnose, and answer questions.  The doctors use the best materials, labs, and techniqes to provide beautiful dentistry.  I am a big Redskin fan and when I am not working I have fun with my twin girls enjoying Bethany Beach in Delaware, my home away from home.



My name is Holly and I've been part of the Lifetime Smile team since July 2016 working as the Financial Coordinator. I have worked in the dental field for the last 8 years and can truly say that working with Drs. Urban and John has been the best experience. I am proud to work with such a cohesive team. They are knowledgeable and caring individuals that I consider friends. It's an honor to work with Washingtonian Top Dentists and get to see amazing results and hear positive feedback from our patients. Outside of work I enjoy spending time with my daughter and participating in her new activities.



Hi, my name is Ari, and I have been the Patient Coordinator for Lifetime Smile since November 2015. We do our best to provide our patients with exceptional assistance by requesting coverage details from their insurance, prompt appointments and any necessary help to make their visits as comfortable as possible. Working as a front staff member, it is great to hear positive feedback from our patients complementing our doctors and team on always making them feel like part of our family. The dental care provided is remarkable and our team works diligently to provide a high level of service. On my free time, I enjoy cooking, painting, going out to eat, taking flying lessons, and spending time with my friends and family. Coming from an aviation science background, I must say it has been a wonderful experience working in the dental field for the past two years. I enjoy every moment at Lifetime Smile and always look forward to learning something new every day!



Hi, my name is Haye, and I've been a dental assistant at Lifetime Smile since February 2015. I came to the U.S. from Korea in 1995, and have lived in Maryland ever since. I have over ten years of dental experience working in both parts of the office as a front desk member and as a clinical staff member, I enjoy working with Top Dentists because I get to see amazing results every day and participate in improving our patients' smiles. Our team is extremely supportive and caring. Outside of the office, I am happily married with two children. During my free time, my husband and I enjoy arts and craft, baking cookies, painting, drawing, refinishing furniture and playing the piano with our children.


Chun-Mei - Dental Assistant

Hi, my name is Chunmei, but everyone calls me "Mei". I came to this country in 1992  from China. Currently, I live in Germantown with my husband and son. Our hobbies include taking long walks around our neighborhood. Sometimes during weekends, we travel to the countryside for hiking or simply to enjoy what nature has to offer us. I am a board certified dental assistant who has been assisting Dr. Viviana Urban for over 19 years at Lifetime Smile™. To tell you the truth, I couldn't think of a better place to work than here. We have great teamwork, and an excellent working environment because we treat every patient like a member of our own family. This is why the quality of our treatment is set to the highest standard. I enjoy my job very much and look forward to helping you.


Juana - dental assistant

Hi, my name is Juana and I have been working with Lifetime Smile since January 2013. It is a pleasure to be working with both Dr. Michael Urban and Dr. Viviana Urban because they treat each patient professionally and care about them individually. I also enjoy being part of the staff and working as an assistant. I received my expanded function dental assisting certificate in 2009 and my dental radiation certificate in 2006 from Southern Maryland Dental Society. In the future, when God permits, I would like to go back to school with a goal of being a hygienist. I grew up in New Jersey but came to this country when I was five years old from Guatemala. I moved to Maryland in 2004. I have a wonderful family, which includes my husband and two children. During my time off, I take my son to karate and on the weekends we attend church. I look forward to meeting you.



Hi, my name is Lydia and I am the Patient Care Specialist of the Lifetime Smile team. I enjoy providing excellent customer service and feel grateful to be a part of such a compassionate, considerate, and exceptional team of dental professionals. I have worked in healthcare for the past 10 years and thoroughly enjoy providing patients with excellent care. Interacting with patients is always the highlight of my day! Working for Drs. Urban and Dr. John has broadened my horizons and shown me how important dental health is to our overall well-being. My husband and I recently moved to Maryland from California and we are enjoying exploring the area. In my free time, I enjoy trips to the Smithsonian, camping with my husband, playing with our two cats, and reading novels.