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Prince William Family Medicine - Manassas

We provide comprehensive preventive care from an award-winning team of board-certified physicians, nurse practitioners, and physician assistants – many of whom live right here in our community.

Primary Care: 703-257-8090

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Our Services

  • Primary Care
  • Newborn/Pediatric Care
  • Adolescent Care
  • Sleep Disorders
  • Women's Health/Gynecology
  • Office Procedures/Surgery
  • Physical Therapy
  • Sports Medicine
  • Nutrition Services
  • Video Visits

With a philosophy centered on compassion and partnerships, we treat each patient as an individual, not just a case, ensuring care that prioritizes your wellbeing. At Prince William Family Medicine, we’re more than healthcare providers; we’re your partners in building healthier, happier lives.

Prince William Family Medicine – Manassas is a founding member of Fairfax Family Practice Centers, a trusted healthcare partner for communities across Northern Virginia since 1972. We deliver high-quality, holistic care tailored to each patient’s needs, supporting every family member from newborns to seniors.

Learn more about our services.

Practice Hours

Monday – Friday:
7:45 AM – 5 PM

Saturday – Sunday:
CLOSED

Physical Therapy Hours

Monday – Thursday:
7:30 AM – 5 PM

Friday – Sunday:
CLOSED

Address

8100 Ashton Ave, #101
Manassas, VA 20109
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Primary Care

703-257-8090

Fax

703-257-7822

Our Providers

Zena Carter - Manassas

Zena R. Carter, MPH, MSHS, PA-C

Specialty: Physician Assistant
Clinical Interests: Primary Care
Years of Experience: 15+

Zena R. Carter is a board-certified physician assistant specializing in adolescent/adult medicine. She has been practicing since 2010.

Outside of the office, Ms. Carter likes to travel, read, volunteer at community events and spend time with her family/friends.

Accreditations/Memberships

  • Member, American Academy of Physician Assistants
  • Member, National Commission on Certification of Physician Assistants

 

Professional Education

  • The George Washington University- MSHS, Physician Assistant Studies
  • VCU School of Medicine- MPH, Generalist Track, Public Health
Aman Gill2

Aman Gill, MD

Specialty: Family Medicine
Years of Experience: 25+

Dr. Aman Gill is a primary care physician board certified in family medicine. She has been practicing since 2000. She has a special interest in preventive and lifestyle medicine, chronic disease management and weight loss.

Outside of work, Dr. Gill enjoys spending time with family and friends, cooking, gardening, and relaxing.

Medical School: Medical College Patiala

Internships: Government Medical College, 5/5/2000 – 5/5/2001. Virginia Commonwealth University. Training Specialty: Pediatrics, 7/1/2002 – 6/30/2003 

Residency: Fairfax Family Practice. Training Specialty: Family Practice, 7/01/2003 – 6/30/2006.

Marianne Briones - Manassas

Marianne B. Manubag, FNP-BC

Specialty: Family Nurse Practitioner
Clinical Interests: Primary Care, Women’s Health
Years of Experience: 10+

Marianne Manubag is a board-certified family nurse practitioner who graduated from Virginia Commonwealth University. She has been practicing as a registered nurse since 2012. She has special interest in preventive medicine, women’s health and management of chronic diseases.

Outside of work, she likes to travel and loves to spend time with family and friends. 

Professional Education: University of Santo Tomas, BSN and Virginia Commonwealth University, MSN

 

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Catherine M. Matkowski, ANP

Specialty: Nurse Practitioner
Clinical Interests: Primary Care
Years of Experience: 10+

Catherine Matkowski is an adult nurse practitioner who graduated from George Mason University. She has been practicing since 2011 as a registered nurse and since 2021 as a nurse practitioner.

She was previously a traveling infusion nurse all over the country, specializing in oncology and blood disorders for 11 years. She has participated in the Manassas MAP Clinics to help underserved populations in Northern Virginia.

In her free time, she remains very active with her children and dogs. She is a big Washington, DC sports fan and loves to support local organizations in Prince William County.

Professional Education: George Mason University, MSN

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Joanna E. Michaelangelo, PA

Specialty: Physician Assistant
Clinical Interests: General Medicine, Primary Care
Years of Experience: 15+

Joanna Michaelangelo is a board-certified physician assistant specializing in family medicine. She has been practicing since 2006.

Outside of work, Joanna likes to exercise, travel, read, and spend time with family and friends.

Accreditations/Memberships

  • Member, American Academy of Physician Assistants
  • Member, National Commission on Certification of Physician Assistants


Professional Education: Saint Francis University, MPAS

Nitu Pandit - Manassas

Nitu Pandit, PT

Years of Experience: 25+

Nitu Pandit is a licensed physical therapist and has been practicing since 1999.

Nitu has focused on outpatient physical therapy, treating a wide range of patient populations with various sports injuries, acute and chronic orthopedic problems, as well as pre- and postsurgical patients. Nitu believes in educating her patients in preventive, conservative care and teaching patients to take control of their health to lead a healthy life. She is fluent in Hindi.

Outside the office, Nitu enjoys the outdoors, spending time with family, traveling, hiking and gardening.

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Kristen Richárd, MD

Specialty: Family Medicine, Sports Medicine
Years of Experience: 5+

Dr. Kristen Richárd is a board-certified Family and Sports Medicine physician. She completed fellowship training in Primary Care Sports Medicine at Fairfax Family Practice. Dr. Richárd is committed to providing comprehensive, evidence-based care for patients of all activity levels, with a particular focus on the prevention, diagnosis, and management of sports-related injuries. She also has a strong clinical interest in lifestyle medicine, supporting patients in optimizing their health through sustainable approaches to nutrition, exercise, and wellness.

Outside of her medical practice, Dr. Richárd enjoys exploring the outdoors and pursuing culinary endeavors.  

Medical School: University of Medicine and Health Sciences

Residency: Hilo Benioff Medical Center. Training Specialty: Family Medicine 

Fellowship: Inova Fairfax Hospital. Training Specialty: Sports Medicine

Dena Shaba - Manassas

Dena Shaban, RDN

Specialty: Family Medicine, Sports Medicine
Years of Experience: 5+

Dena Shaban is a board-certified Registered Dietitian Nutritionist with over seven years of experience in providing individualized nutrition counseling. She specializes in weight management, diabetes care, heart health, or digestive wellness and is dedicated to helping patients build healthier lifestyles through practical, evidence-based guidance.

Outside of work, Dena enjoys cooking new recipes, traveling, playing soccer and spending time with family and friends.

Professional Memberships: Academy of Nutrition and Dietetics

Education:  Oklahoma State University – Bachelor of Science in Nutrition and Dietetics 

BrittneyVanwinkler2

Brittany L. VanWickler, PA

Specialty: Physician Assistant
Clinical Interests: Primary Care
Years of Experience: 15+

Brittany VanWickler is a board-certified physician assistant specializing in family medicine. She has been practicing since 2008.

Outside of the office, Brittany likes spending her free time with her husband and two boys. They love doing outside activities, playing sports, and taking care of their chickens.

Professional Education: Shenandoah University, MS

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Thuy Phuong T. Vo, MD

Specialty: Sports Medicine, Family Medicine, Women’s health
Clinical Interests: Diagnosis and non-surgical management of musculoskeletal injuries, acute injuries, overuse injuries, osteoarthritis, concussion, nutrition, sports injuries, lifestyle medicine, and primary care
Years of Experience: 5+

Dr. Thuy Phuong Vo is a board-certified primary care physician specializing in family medicine and primary care sports medicine since 2016. Her passion for sports and musculoskeletal health led her to focus on non-operative sports medicine. She also practices lifestyle medicine, believing healthy habits and nutrition can prevent and treat chronic diseases. 

Dr. Vo completed a sports medicine fellowship with VCU School of Medicine-Fairfax Family Practice. Outside work, she enjoys hiking in the Shenandoah National Park, exploring other parks, playing volleyball, cycling, and spending time with friends and family.

MollyWhite2

Molly J. White, MD

Specialty: Family Medicine
Years of Experience: 15+

Dr. Molly White is a primary care physician board certified in family medicine. She has been practicing since 2007.

Outside of work, Dr. White enjoys cooking, music and spending time with her husband and children.

Accreditations/Memberships

  • Member, American Academy of Family Physicians 
  • Member, Prince William County Medical Society


Medical School: Saint Louis University School of Medicine

Residency: Virginia Commonwealth University Health System. Training Specialty: Family Medicine, 7/01/2007 – 6/30/2010.

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Steven Williams, PA

Specialty: Physician Assistant
Clinical Interests: Family Medicine
Years of Experience: 35+

Professional Education: Hahnemann Medical College, Physician Associate Program (now Drexel University) 

Undergraduate Training:  UNC Chapel Hill, NC

Accreditations: Board Certified (NCCPA)

US Army Veteran

ChiYoung2

Chi G. Young, MD

Specialty: Family Medicine
Clinical Interests: General Medicine, Preventive Disease Care, Primary Care
Years of Experience: 15+

Dr. Chi Young is a primary care physician board certified in family medicine.

Dr. Young is from Manassas. Outside of work, he likes sports. His favorite teams are the Kentucky Wildcats, St. Louis Cardinals, Washington Commanders, and Boston Celtics.

Medical School: Saint Louis University School of Medicine

Internship: The Western Pennsylvania Hospital

Residency: Virginia Commonwealth University/Valley Health 

Shenandoah Valley Family Practice, Residency, 2008-2011

Memberships: Medical Society of Virginia, Prince William County Medical Society President, 2015

Patient Resources

Forms and Policies

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Starting October 1, due to changes in federal legislation, Medicare, Medicare Advantage, Tricare, and Medicaid may no longer cover telehealth services. If you are on a Medicare Advantage plan, please check with your plan or your office to confirm coverage. Our staff may contact you if your upcoming telehealth appointment needs to shift to in-person. Our practice still accepts these health plans and will continue offering telehealth, but some services may not be paid for by your insurance. Congress is still considering telehealth coverage, and we will update you as we learn more.