Dr. Marvin Berger, DDS, periodontist, brought his extensive knowledge, experience and expertise to Cleveland L. Null, DDS, PC, in 2007.  A graduate of Tulane University, Dr. Berger attained his DDS from Columbia University Dental School in 1969, and received his Certificate in Periodontology from the Boston University School of Graduate Dentistry in 1973.

Starting his career as a General Dentist in the United States Air Force in 1969, Dr. Berger moved to a private practice in Camp Hill, Pennsylvania in 1973. For more than 30 years, Dr. Berger has educated dental students as an Associate Professor of Periodontics at the University of Maryland, Visiting Professor of Periodontics at the University of Maryland, and Clinical Instructor of the Harrisburg Area Community College Dental Hygiene School.

Dr. Berger is the former president of both the Pennsylvania Society of Periodontists and the Harrisburg Area Dental Society, belongs to numerous national and international dental organizations, and is a frequent speaker and lecturer for the American Academy of Periodontology, University of Nebraska Dental School, and the Speakers Forum for Orapharma Pharmaceuticals.