Inova Primary Care - Fair Oaks
3650 Joseph Siewick Dr Ste 400 Fairfax, VA 22033
Get Directions
Phone: 703-391-2020
Fax: 703-391-1211
Sun Closed
Mon 8:00AM-5:00PM
Tue 8:00AM-5:00PM
Wed 8:00AM-5:00PM
Thu 8:00AM-5:00PM
Fri 8:00AM-5:00PM
Sat 8:00AM-12:00PM

Whether you need a routine check-up, have a specific health concern, or are seeking guidance on maintaining a healthy lifestyle, we are here to support you. Our team works closely in coordination with Inova's extensive network of hospitals and outpatient facilities.

Extended Scheduling Hours by Phone - Evenings and Weekends

Prefer to schedule your appointment by phone? We have extended our call-in scheduling hours, and our team members are ready to assist you:

  • Monday - Friday, 7 a.m. to 6:30 p.m.
  • Saturday, 8 a.m. to 4:30 p.m.

Inova Primary Care – Fair Oaks has proudly served the Northern Virginia community since 1971, providing trusted, high-quality healthcare for individuals and families at every stage of life.

Our team of board-certified physicians and advanced practice providers is dedicated to delivering personalized care tailored to your unique needs. Whether you're coming in for a routine check-up, managing a chronic condition, or exploring specialized services, we’re here to support your health journey with expertise, compassion, and a commitment to excellence.

Vishwas Patel, DO
Vishwas C. Patel, DO

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Sports Medicine, Family Medicine
Clinical Interests
Ankle Problems/Surgery and Treatments, Arthritis, Back Pain, Concussion, Elbow Problems/Surgery and Treatments
Years of Experience
8
Aubrey Massmann, DO
Aubrey Massmann, DO

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Family Medicine
Years of Experience
5
Gracia North, DNP, FNP
Gracia N. North, DNP, FNP

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Family Nurse Practitioner
Clinical Interests
Primary Care
Caitlyn Mulcahy, FNP
Caitlyn E. Mulcahy, FNP

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Family Nurse Practitioner
Clinical Interests
Primary Care
Kathrin Wilkowski, MD
Kathrin S. Wilkowski, MD

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Family Medicine
Years of Experience
9
Marc Childress, MD
Marc A. Childress, MD

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Family Medicine, Sports Medicine
Years of Experience
24
Daniel Merenstein, MD
Daniel J. Merenstein, MD

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Family Medicine
Years of Experience
29
Heba Elzawahry, MD
Heba K. Elzawahry, MD

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Family Medicine, Geriatric Medicine
Years of Experience
21
Allison Jiongo, FNP
Allison M. Jiongo, FNP

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Family Nurse Practitioner
Timothy Yu, MD
Timothy J. Yu, MD

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Sports Medicine, Family Medicine
Years of Experience
15
Thomas Ehrlich, MD
Thomas P. Ehrlich, MD

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Family Medicine
Years of Experience
36
Evangelia Tsapos, DO
Evangelia E. Tsapos, DO

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Family Medicine, Family Medicine
Years of Experience
9
Suzan Shibla, DNP, FNP
Suzan E. Shibla, DNP, FNP

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Nurse Practitioner
Clinical Interests
Primary Care
Rose Alldredge-Brown, PA
Rose A. Alldredge-Brown, PA

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Physician Assistant
Clinical Interests
Primary Care
Andrew Bazemore, MD
Andrew W. Bazemore, MD

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Family Medicine
Years of Experience
29
Katya De La Torre, DO
Katya K. De La Torre, DO

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Family Medicine
Years of Experience
6
Susan Burroughs, MD
Susan H. Burroughs, MD

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Family Medicine
Clinical Interests
Concussion, General Medicine, General Pediatrics, Primary Care, Women's Health
Years of Experience
41
Mark Franke, MD
Mark E. Franke, MD

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Emergency Medicine
Years of Experience
33
Victoria Merkel, MD
Victoria L. Merkel, MD

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Family Medicine
Years of Experience
45
Kendall Hancock, MD
Kendall S. Hancock, MD

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Family Medicine
Years of Experience
9
Marjorie Hermes, MD
Marjorie A. Hermes, MD

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Family Medicine
Years of Experience
38
Nana Apedoe, DNP, NP
Nana E. Apedoe, DNP, NP

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Nurse Practitioner
Clinical Interests
Primary Care
Amy Nobu, MD
Amy Y. Nobu, MD

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Family Medicine
Years of Experience
40
Janet Stopa, FNP
Janet C. Stopa, FNP

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Family Nurse Practitioner
Lee Blecher, MD
Lee I. Blecher, MD

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Family Medicine
Clinical Interests
Women's Health
Years of Experience
28
Daniel Hermes, MD
Daniel J. Hermes, MD

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Emergency Medicine
Years of Experience
36
Alison Huffstetler, MD
Alison N. Huffstetler, MD

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Family Medicine
Years of Experience
11
Kevin Edinborough, MD
Kevin A. Edinborough, MD

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Family Medicine, Sports Medicine
Years of Experience
7
Sandra Ratterman, MD
Sandra L. Ratterman, MD

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Family Medicine
Years of Experience
33
Francis O'Connor, MD
Francis G. O'Connor, MD

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Family Medicine, Sports Medicine
Years of Experience
41
Camille Roy, MD
Camille A. Roy, MD

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Family Medicine
Years of Experience
29
Rachel Spiotto, PA
Rachel A. Spiotto, PA

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Physician Assistant
Clinical Interests
Primary Care
Maura Sughrue, MD
Maura J. Sughrue, MD

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Family Medicine
Years of Experience
47
Amanda Tran, PA
Amanda G. Tran, PA

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Physician Assistant
Christine Lee, MD
Christine H. Lee, MD

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Family Medicine
Years of Experience
23
Kathryn Hare, MD
Kathryn W. Hare, MD

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Family Medicine
Years of Experience
20

Matthew Harlan, MD
Matthew S. Harlan, MD

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Family Medicine
Years of Experience
7
Jeremy Spinks, MD
Jeremy G. Spinks, MD

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Emergency Medicine
Years of Experience
22
Kathleen Langan, MD
Kathleen M. Langan, MD

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Family Medicine
Years of Experience
15
Samuel Jones, MD
Samuel M. Jones, MD

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Family Medicine
Years of Experience
47
Alexander Krist, MD
Alexander H. Krist, MD

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Family Medicine
Years of Experience
30
Robert Phillips, MD
Robert L. Phillips, MD

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Family Medicine
Years of Experience
31
David Murray, MD
David T. Murray, MD

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Family Medicine, Hospice and Palliative Medicine
Years of Experience
6
Anna Crutchfield, MD
Anna L. Crutchfield, MD

Inova providers are Inova's premier primary care and specialty physicians and providers, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records. 
Specialty
Sports Medicine, Family Medicine
Clinical Interests
Arthritis, Children's Sports Injuries, General Pediatrics, Sports Injuries, Women's Health
Years of Experience
10