Our Staff

Meet Our Providers:

Choosing a doctor is an important decision. You want someone you can trust someone who is compassionate and someone who cares about you and your family. You also want someone who is near by in time of need.

Our physicians are Board Certified by the American Board of Family Practice. Family Practice is the one medical specialty that ensures professional medical care for all members of the family, from newborns to seniors.

Jason A. Cooper M.D.

Jason Cooper lives with his wife and son in Maryland. He graduated with honors, Phi Beta Kappa from Brandeis University in 1991, and received his medical degree with honors, Alpha Omega Alpha, from the University of Maryland School of Medicine in 1995. He completed his residency at Fairfax Family Practice Center in Fairfax, Virginia, where he served as Academic Chief Resident in 1998. He has a special interest in complementary and alternative medicine, and pediatrics. Outside of work activities include golf, meditation, and chasing his son.

Natasha C. Hofberg N.P.

Natasha C. Hofberg grew up in North Carolina and received her BSN from the University of North Carolina in Wilmington. She graduated with honors, Signa Theta Tau, from the collaborative George Mason University/George Washington University program with an MS, with concentration as a Family Nurse Practitioner. Natasha has a special interest in family medicine. She enjoys spending time at the beach, the ballet, theater, jogging, and yoga.Natasha resides in Northern Virginia with her husband.

Deborah I. Leavens M.D.

Deborah Leavens grew up in Mclean and received her B.A. with distinction from the University of Virginia and her M.D. from the Medical College of Virginia. After completing her Family Practice Residency training at Fairfax Family Practice, she joined the Army in 1986. In addition to family medicine, Dr. Leavens enjoys providing obstetrical care for her patients and she is certified in geriatrics. In her free time she enjoys reading, gardening, cycling, traveling, and is active in her church.

Marc Plescia M.D.

Marc Plescia, a native of New Jersey, attended Duke University, graduating with honors. He received his medical education at Rutgers Medical School, and completed his residency with the Fairfax Family Practice Center in 1986. Certified by the American Board of Family Practice, Dr. Plescia has been named to one of the "Best Doctors in America" and Washingtonian's "Top 100 Doctors". A member of the varsity baseball team while at Duke, he once had a try out with the Philadelphia Phillies, and now enjoys golf and snow skiing. Dr. Plescia has special interests in preventative medicine and pediatrics. He resides in Northern Virginia with his wife and three daughters.

Read the article from TheWashingtonPost.com about how Dr. Plecia helped a patient get properly diagnosed for a brain disorder with symptoms often confused with depression. The disease, frontotemporal dementia (FTP, aka Pick's disease), is progressive and unfortunately, irreversible.

Janice E. Ragland M.D.

Janice E. Ragland, a native Virginian, earned her BA Cum Laude from Old Dominion University and her MD from the Medical College of Virginia. She completed her residency in Family Medicine at Riverside Family Practice Center in Newport News, VA. She is Board Certified in Family Medicine and recognized as a Fellow of the American Academy of Family Physicians. Dr. Ragland also serves as First Vice President of the Virginia Academy of Family Physicians, where she is active in supporting legislative actions protecting the health care rights of Virginians. Dr. Ragland has also been honored as one of “America’s Top Family Doctors.” Medical areas of interest include preventive care, adolescents and pediatrics. A sports enthusiast, Dr. Ragland enjoys both watching and participating in sports in her free time, as well as traveling and spending time with family and friends.

Anita G. Rentz M.D.

Dr. Rentz lives with her husband and daughter in Northern Virginia. She graduated from the University of Maryland in 1988 with a B.S. in Biology and then obtained her MD from the medical college of Virginia in 1992. She completed her Family Practice residency training in 1992 at Carolinas Medical Center in Charlotte, North Carolina. Dr. Rentz is board certified in Family Practice, and has a special interest in Pediatrics and Adolescents. In her leisure time, Dr. Rentz enjoys spending time with her family, horseback riding, traveling and is active in her church.

Michael A. Silverstein M.D.

Michael A. Silverstein grew up in Falls Church, and earned his B.A. with Distinction from the University of Virginia in 1978, and his M.D. from the Medical College of Virginia in 1982. He completed his family practice residency training at the University of Vermont Medical Center in 1985. He lives with his wife and two children and has been practicing at Herndon Family Medicine since it opened in 1986. A fellow of the American Board of Family Physicians, Dr. Silverstein is the former Chairmen of the Department of Family Practice at Reston Hospital. Leisure time pursuits include sports.

Kevin M. Weaver M.D.

Kevin Weaver grew up in Silver Spring, Maryland and received his B.S. with honors from the University of Maryland in 1979 and his M.D. from the University of Maryland in 1983. He completed his family practice training at Fairfax Family Practice in 1986 and became Board Certified later that year. Within the realm of family practice he has a special interest in sports medicine and pediatrics. He lives with his wife and three children in the area, and enjoys sports, dance and theater.

Cynthia Horner M.D.

Cynthia Horner, born in Illinois and raised in Massachusetts, graduated Cum Laude from Duke University. She received her medical degree from the Medical College of Virginia, graduating with the Department of Family Practice Award for Academic Excellence in 1994. She completed her Family Practice Residency at Fairfax Family Practice, where she served as Chief Resident in 1997. She is Board Certified in Family Practice and her special interests include pediatrics, preventative medicine and women's health. Dr. Horner is married with two daughters, enjoys running and gourmet cooking, and is active through her church in medical mission work to Sierra Leone.

Tosha Luchtefeld, N.P.

Tosha Luchtefeld, grew up in Indiana and received her BSN with Distinction, Sigma Theta Tau, from Indiana University. She graduated with Honors, first in her class, from Georgetown University with an MS, concentration as a Family Nurse Pracititioner. Tosha enjoys traveling, yoga, running, and spending time with her family. She resides in MD with her husband and their two sons.

Kathryn Reber, N.P.

Kathryn Reber, grew up in Ohio and received a BA in biology, theater and anthropology from Colby College. She received her nursing degree from Johns Hopkins University. Then she continued her nursing education at Georgetown University where she received her Masters in the Science of Nursing, with a concentration as a Family Nurse Practitioner. Katie is on the board of the local chapter of the Virginia Council of Nurse Practitioners. She is certified by the ANCC. Katie enjoys travel, photography, reading as well as watching Big 10 football!