About Us:


Dr. Elhajj is a graduate of the University of Houston and St. George's University School of Medicine. A strong advocate for patient education, Dr. Elhajj works closely with his patients so they have a clear understanding of their care. He enjoys treating a wide variety of age groups and delving into medical problems from the most simple to the most complex. He is involved in several civic organizations in Magnolia and The Woodlands. Dr. Elhajj is board certified in family medicine.

Feras Elhajj, M.D.

Dr. Christian Dyhianto (dee-yawn-toe) is board certified in Family Medicine. He completed his residency program through Baylor College of Medicine at the Texas Medical Center. He obtained his medical degree from the University of the Philippines. Dr. Dyhianto believes in the value of prevention and empowering his patients through advocacy, education and communication. He enjoys seeing patients from all age range, and managing a wide spectrum medical problems.

Christian Dyhianto, M.D.

Kelci Evans is a board certified physician assistant who earned her master's degree from Duquesne University in Pittsburgh, Pennsylvania. Kelci exhibits a passion for patient education and understanding with particular interest in women's health and mental health.

Kelci Evans, P.A.

Dr. Kathleen Paz, certified in family medicine, completed her undergraduate studies at Houston Baptist University, and obtained her medical degree from the University of Texas Medical Branch in Galveston. Dr. Paz completed her training in the Conroe Family Medicine Residency Program, with an emphasis in the treatment of broad spectrum of diseases in children, youths, and adults. Her special interests include preventive medicine and women’s health. A native Houstonian, Dr. Paz resides in the Woodlands and enjoys serving as a pianist in her church where she is an active member.

Kathleen Paz, MD

Dr. Richter is a graduate of Logan University where, in addition to his Doctoral studies, he received a Master's in Sports Science and Rehabilitation. Specializing in rapid recovery from soft tissue and athletic injuries Dr. Richter has had the opportunity to treat patients ranging from little leaguers to professional athletes as well as working with the athletic programs at the University of Missouri and Dixie State University. While Dr. Richter is most passionate about spending time with his family, helping patients return to doing what they love is a close second.


Kaylee Ruff is a board certified physician assistant who completed a Bachelor's degree in Nutritional Sciences from Texas Tech University before earning her master's degree from Texas Tech University Health Sciences Center. Kaylee enjoys treating a wide variety of patients with a particular interest in nutrition and women's health. A Texas native, she has resided all across the state prior to beginning her career in the Houston area.

Kaylee Ruff, P.A.

We designed the office with a lot of care to welcome you into a friendly and caring environment. We want to you to feel comfortable in our office. Our practice is built from families starting with newborns to great grandparents. We strive for your comfort in our office because we believe that it is an integral part of caring for every patient. Please share with us your experience in the remarks/survey section so we can continue to improve our services.

Waiting Areas:

Adult Waiting Room

Childrens Waiting Room

Patient Rooms:

Nurse Station & Procedure Room:

Nure Station

Procedure Room

Reception Area:

Reception Area


Office Building:

Office Building Exterior



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