Contact Information


Calling the Office:



A physician or a nurse-midwife is on call 24 hours a day. If an emergency should arise after hours, please call the respective office numbers listed to the left, and the on-call physician will be paged. The nurse-midwife is on call 24 hours a day for her clients.


Non-Emergency Telephone Calls

The medical secretaries and assistants screen all incoming calls. Those requiring immediate attention will be managed appropriately after consultation with either the physician or nurse practitioner. Those calls not requiring an immediate response will be returned at random during or after office hours.

Our Departments:


Operations Manager: Claudia Thayer

As Operations Manager, Mrs. Thayer oversees all operational functions of the practice, including patient satisfaction, daily operations, compliance and purchasing. Please direct all operational inquiries, questions, and concerns directly to her. She can be reached at (703) 690-2295 extension 107, or via email at


HR Director/Front Desk Manager: Patricia Wiltse

Patricia has been with the practice since 2017. As Human Resources Director/Front Desk Manager, Patricia oversees all human resource functions of the practice, helping office managers communicate and understand the issues or concerns of patients and employees. Please direct any questions or concerns regarding human resources to her. She can be reached at (571)492-3100 or via email at


Billing Manager: Megan Colon

Megan Colon has been with the practice since 2007, she has a Business Management degree from Loras College. As Billing Manager, Mrs. Colon oversees all billing functions of the practice. Please direct all inquiries, questions, and problems regarding the billing department to the Billing Department at (703) 391-1500, extension 302.


Nurse: Shannon Kloman

Shannon Kloman is a registered nurse (RN) who has been working for Fairfax OB/GYN for over 10 years. Shannon oversees the Medical Assistant’s and LPN’s of our offices and also answers and manages the nurse’s line. Please direct all inquiries, questions, problems, or concerns regarding clinical information to one of our nurses at: Woodbridge: (703) 491-7181 ext. 101; Gainesville: (703) 753-0963 ext. 201; Fair Oaks: (703) 391-1500 ext. 301


Surgical Coordinator: Beth Lowdermilk

Our Surgical Coordinator, Beth Lowdermilk, is responsible for scheduling all surgeries, C-Sections, and inductions. Beth is responsible for making sure that all procedures are scheduled appropriately and in a timely manner. Beth will inform all surgical patients of their benefits after contacting their insurance company. All of our surgeries are scheduled at INOVA Fair Oaks Hospital, Northern Virginia Surgical Center (NVSC), and Sentera Hospital. All of our deliveries are performed at INOVA Fair Oaks Hospital. Beth can be contacted at the Gainesville office at (703) 753-0963 extension 323, or at


Disability Paperwork/Prior Authorizations

Disability Paperwork takes approximately 10-14 business days to complete. Please send all Disability Paperwork to the attention of Zeinab Issa via fax at (703) 860-1549 or via e-mail to


Maternity Benefits

Samantha Yates obtains all Maternity Benefits for our Obstetrical patients. She can be reached @ (703) 753-0963 extension 209.



Thank you for your interest in Fairfax OB/GYN Associates, P.C. As opportunities (full-time, part-time and internships) within the company become available they will be posted here. Please check back often to see what is available. Unless otherwise noted, please direct all employment inquiries to

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