Hours & Information
Immediate Care, Walk In - No appointment necessary:
Open seven days a week
Monday-Friday 8:00 a.m. - 8:00 p.m.
Saturday-Sunday 9:00 a.m. - 5:00 p.m.
Primary Care - by appointment:
Monday-Friday 8:00 a.m. - 6:00 p.m.
Open from 9:00 a.m. - 5:00 p.m. on:
Easter Sunday, July 4th, Labor Day
Open from 9:00 a.m. - 5:00 p.m. on:
Memorial Day
Closed on:
Christmas Day, Thanksgiving Day
For Information Call :
Office Number : 703- 450-1125
Fax Number : 703-450-1145
Providers & Staff

Providers :

Jeffrey MartinDr. Jeffrey Martin
Board Certified Family Physician

Dr. Martin is a board-certified family medicine doctor. He grew up in Annandale, Virginia where he attended Thomas Jefferson High School for Science and Technology. He received a bachelor of science degree in mechanical engineering at the University of Virginia, and he completed medical school at the Medical College of Virginia. Dr. Martin did his residency at the University of Virginia Family Medicine Program. Following residency, he worked as a volunteer doctor in Nepal for one year at a rural mission hospital. After Nepal, Dr. Martin moved back to Charlottesville, Virginia where he worked at First Med Urgent Care Center and as the Medical Director for the Albemarle Charlottesville Regional Jail. During his time in Charlottesville, he also completed a Faculty Development Fellowship at the University of Virginia Family Medicine Program. Dr. Martin joined LMG as Lead Physician of the Primary and Immediate Care Center in July 2008.


Ralph LeonDr. Ralph Leon
Board Certified Family Physician

Dr. Ralph Leon has joined the Loudoun Medical Group Primary & Immediate Care Center!  A Board-Certified Family Medicine physician, Dr. Leon has practiced in the Loudoun community with Loudoun Medical Group for 9 years, most recently with Sterling Family Practice.  Upon earning his medical degree at the University of South Florida College of Medicine, Dr. Leon completed his Family Medicine residency at Franklin Square Hospital in Baltimore.  Dr. Leon, who previously practiced in Florida for over 10 years before moving to Virginia, is fluent in Spanish and maintains a professional interest in natural family planning.  We welcome Dr. Leon to our team, and he looks forward to serving you.


Laurel BlymyerLaurel Blymyer
Board Certified Family Nurse Practitioner

Laurel Blymyer graduated from James Madison University in 2000 with a Bachelor of Science in Nursing. In 2003 she was commissioned into the U.S. Navy Nurse Corps and served four years active duty at the former National Naval Medical Center. After this she spent some time overseas volunteering in Nepal and Uganda. Subsequently Laurel worked in a variety of hospital settings as a registered nurse before graduating with honors in 2010 from Marymount University with a Master of Science in Nursing and a Family Nurse Practitioner concentration. She received her Family Nurse Practitioner Certification from the American Academy of Nurse Practitioners (AANP) and is licensed by the Board of Nursing to practice in Virginia. Laurel joined our practice in August, 2017. She looks forward to establishing new primary care relationships with the community and serving patients of all ages with acute care issues through our immediate care center.


Rhonda MartinDr. Rhonda Martin
Board Certified Family Medicine Physician

Dr. Rhonda Martin is a board-certified family medicine physician. After growing up in Fairfax County, she attended the University of Virginia for her undergraduate education and majored in biochemistry. She graduated from medical school at the Medical College of Virginia and then completed a residency in family medicine at Chesterfield Family Practice in Richmond, Virginia. Following residency she worked in various positions, including as an urgent care doctor at First Med in Charlottesville, as a staff physician with United Mission to Nepal, and as international medical advisor for Interserve USA. She also served as a volunteer doctor for the Loudoun Free Clinic. Dr. Rhonda Martin joined LMG’s Primary and Immediate Care Center in 2017. In addition to practicing medicine, she enjoys coaching field hockey.


Mallory GuffeyMallory Guffey
Board Certified Family Nurse Practitioner

Bio to follow.


Maite’ J. Corbin, FNPMaite’ J. Corbin
Physician Assistant, Certified

Bio to follow.


Our Staff :

Laila Azizi
Medical Assistant

Amandeep Bhogal
Medical Assistant

Wendy Solier Cueto
Medical Assistant

Mansi Gandhi
Patient Service Representative

Patricia Alcala-Garcia
Patient Service Representative

Carla Irribarren
Patient Service Representative

Edith Nohloth
Medical Assistant

Melissa Penniington
Patient Service Representative

Madelyn Portillo
Medical Assistant

Christina Salgado
Patient Service Representative

AJ Samsor
Clinical Nurse Supervisor

Sherry Walters
Office Manager