David Bullock, MPT, CLT, LMT, CMTPT, CHT


David received his Master of Physical Therapy in 2003 from Howard University.  Since then, he has practiced in more than 18 venues of rehabilitation delivering care to our soldiers in the intensive care and orthopedic units of Walter Reed Army Medical Hospital to patients in post-rehabilitation programs in a specially designed gym for Good Samaritan Hospital in Baltimore.  Where else?   David has delivered therapy at National Rehabilitation Hospital, Doctor’s Community Hospital, Laurel Regional Hospital, Maryland General Hospital, a number of skilled nursing facilities and in patient’s homes for post-hospitalization transition.  David’s choice to be in private practice was driven by the increasing demand from patients and physicians to catch musculoskeletal and neuromuscular issues before they exacerbate into greater problems requiring pharmaceutical, injection or surgical intervention.

David is the current Director of Reimbursement for the Maryland Chapter of the American Physical Therapy Association.  David is also a CHT, Certified Hand Therapist, graduating from the Drexel University’s Certificate of Advanced Practice in Hand and Upper Quarter Rehabilitation. He is certified through the HTCC, Hand Therapy Certification Commission.

Prior to his education in physical therapy, David received a Bachelor of Business Management (1995) and Bachelor of Health Sciences (2000).  His professional background, character and commitment to serve are structured by his education and experiences in hospitality management, R.O.T.C, and fitness endeavors.  His interest to pursue a profession in physical therapy and rehabilitation was driven by assisting a dear friend through the recovery of a multiple level spinal fracture suffered from a motor vehicle accident; a lesson in the value of your body, for David, learned the easy way.

David is certified in the management of myofascial pain and the skill of Dry Needling, a skill unique to a handful of physical therapists in the United States and an incredible adjunct to traditional interventions of physical therapy.  He is also a certified Lymphedema Specialist by the Klose group.  Prior to his licensing as a physical therapist, David has held licenses in massage therapy in Maryland and Washington DC.  His particular clinical interests are conditions of the shoulder, spine and hip that require mobilization and manipulation of joint, nerve and muscle tissue.  If you are scheduled to be evaluated and treated by David, expect a customized program of hands-on, manual therapy and a methodical exercise program.


Dr. Jung studied Exercise Science and earned Doctorate Degree in Physical Therapy from University at Buffalo, State University of New York. Dr. Jung also completed Manual Therapy Fellowship Program from Regis University and holds a fellow status from the American Academy of Orthopedic Manual Physical Therapists. Dr. Jung utilizes evidence-based medicine in the management of musculoskeletal and vestibular disorders to provide best quality of individualized care. Dr. Jung is one of few primary practitioners in the local medical community to provide in-office Benign Paroxysmal Positional Vertigo Maneuvers and Vestibular Rehabilitation. He also offers golf performance program including video swing analysis for various level of golfers in the area.

Dr. Jung is an Orthopedic Clinical Specialist in Physical Therapy credentialed by American Board of Physical Therapy Specialties. He is a Certified McKenzie Method Provider of Mechanical Diagnosis & Therapy from McKenzie Institute USA and a Certified Orthopedic Manual Therapist from Maitland-Australian Physiotherapy Seminars. He then became a Certified Manual Trigger Points Release and Dry Needling Provider through the Janet G Travell Seminars. Dr. Jung is also an active member of the American Physical Therapy Association and the American Academy of Orthopedic Manual Physical Therapists.

Dr. Jung co-authored few articles and received an award for best poster presentation from APTA combined section meeting. He frequently presents clinical case studies at professional conferences. He continuously performs clinical research regarding cervicogenic headache and dizziness, utilization of subgroup classification favoring lateral principle for non-specific low back pain, dry needling approach in orthopedic practice, and regional interdependence approach for golfers with mechanical low back pain.

Dr. Jung is happily married with wife, a daughter, and two dogs. In his free time, Dr. Jung enjoys hiking and playing soccer. He is an avid golfer and a martial artist in both Kumdo and TaeKwonDo. He also enjoys mentoring regional physical therapy graduate students and clinicians. Dr. Jung currently holds an adjunct faculty position in University of Maryland School of Medicine and Korea University.

Lambros Georgallas, DPT, CMTPT

Director of Rehabilitation

Dr. Georgallas joined the White Oak Physical Therapy and Pain Management family in May 2011. He is originally from New York where he worked as the Clinical Director of a well-known orthopedic, sports and surgical rehabilitation clinic. He was a part of the faculty and fellowship educators for the Mastery Certification in Manual Therapy (MCMT) provided by Hands-On Seminars. Currently Dr. Georgallas holds the position of Director of Rehabilitation for White Oak Physical Therapy and Pain Management since September 2013.

Dr. Georgallas has a Doctorate of Physical Therapy (DPT) and graduated in 2008 from Stony Brook University in New York. His expertise of physical therapy practice includes Orthopedic Conditions and Sport Injuries affecting the general, working and athletic population using the latest specialized manual and exercise therapy techniques. Dr. Georgallas’ clinical skills expand to the rehabilitation of balance problems and vestibular disorders, and Parkinson’s Disease.

Dr. Georgallas is a Certified Manual Trigger Point Therapist (CMTPT) and Dry Needling provider through Myopain Seminars. He also is a Functional Capacity Evaluator (FCE) to objectively measure a person’s physical capability to perform at their highest potential for their jobs and careers. Dr. Georgallas is known for improving his patients’ condition by assessing the most effective combination of Trigger Point Therapy, Intramuscular Therapy, Myofascial Release Therapy, Muscle Energy Techniques, Manual Manipulation of the Spine and Joints, Interval Exercise Training, Therapeutic Stretching and personalized home exercise programs. Each patient is considered individually for their plan of care and therapeutic goals.

Sherin Mathew, DPT, CMTPT

Dr. Mathew earned her Bachelor of Science degree in Kinesiology from the University of Maryland, College Park in 2009.  She then earned her Doctorate degree in Physical Therapy from Temple University in 2012, where she completed her final thesis on the effects of orthosis vs. functional electrical stimulation in post-stroke patients.

After completing her degree, she presented a poster at the American Physical Therapy Association (APTA) combined section meeting on cervicogenic dizziness.

Dr. Mathew makes it a priority to be updated on current research studies to provide effective treatment and quality care to all her patients.
She has worked with a diverse population including orthopedic, neurologic, geriatric, and pediatric patients.  In addition, Dr. Mathew is a member of the APTA and is aslo certified in Dry Needling.

Michael Robinson, PT, DPT, OCS, CMTPT

Dr. Robinson received his Bachelor of Science from Howard University in 2010. In 2013, he earned his Doctorate of Physical Therapy degree from Emory University in Atlanta, Georgia. Dr. Robinson is also a residency-trained physical therapist via the Orthopedic Residency Program at the University of North Carolina, Chapel Hill.

A board-certified orthopedic specialist (OCS), Dr. Robinson is credentialed by the American Board of Physical Therapy Specialties (ABPTS) and is an orthopedic section member of the American Physical Therapy Association (APTA).

Dr. Robinson has co-authored a published journal article pertaining to the management of lower extremity injuries in active adults. He also has interests in dry needling, muscle energy, mechanical diagnosis and treatment (MDT), and post surgical rehabilitation.

Michael is a White Oak native. He attended Springbrook High School in the mid-2000′s and he looks forward to giving back to the community he hails from.