Photo of Dr. William Lang

Dr. William Lang, MD

Concierge Family Medicine physician and Chief Medical Officer of WorldClinic, Leesburg, VA

WorldClinic
5.0 (10 reviews)

Dr. William Lang is Chief Medical Officer of WorldClinic, a concierge telehealth practice founded in 1998.

161 Fort Evans Road Northeast, Leesburg, VA 20176
At a glance
Practice model
Concierge telehealth practice
Membership fee
WorldClinic Silver from $4,000 a year, priced by age

Facts on this page last checked October 2026. How we check doctors

About Dr. Lang

Dr. Lang is Chief Medical Officer of WorldClinic. WorldClinic is a private, URAC accredited concierge telehealth practice founded in 1998. His current work focuses on running the Medical Director on Demand program, which supports organizations with risk assessment, health communications and business continuity.

Dr. Lang is a retired Colonel in the US Army. He is a former Director of the White House Medical Unit and a former Associate Chief Medical Officer of the US Department of Homeland Security.

Membership and fees

WorldClinic's Silver annual membership starts at $4,000 and is priced by age. It includes unlimited 24/7 immediate physician access while traveling, treatment of injuries and illnesses while traveling, and a personal prescription medical kit.

The Gold annual membership starts at $8,000 and is priced by age. It includes unlimited 24/7/365 immediate physician access at home and away.

WorldClinic's services are not covered by insurance.

Licenses and credentials

Degree
MD, MHA
NPI
1508863622

Hospital and practice affiliations

Chief Medical Officer, WorldClinic
Leads WorldClinic's Medical Director on Demand program
Former Director of the White House Medical Unit
Former Associate Chief Medical Officer, US Department of Homeland Security

Location

161 Fort Evans Road Northeast, Leesburg, VA 20176
WorldClinic practice page
Directions

Recognition and research

Media and books

Named on PBS NewsHour in October 2020 as a former deputy White House physician under Presidents Bill Clinton and George W. Bush and as Chief Medical Officer of WorldClinic

Patient reviews

5.0
10 reviews
5 star10
4 star0
3 star0
2 star0
1 star0
Write a review
Rated 5 out of 5

Great!

"Very professional care and consult."

FMDD UserApr 2024
Rated 5 out of 5

Awesome!

"Guided me in choosing the best treatment option."

FMDD UserMar 2024
Rated 5 out of 5

Amazing!

"Enlightened me about my condition."

FMDD UserFeb 2024

Questions patients ask

What does Dr. Lang do at WorldClinic?

Dr. Lang is Chief Medical Officer of WorldClinic. He leads the Medical Director on Demand program.

Does WorldClinic take insurance, or offer a membership?

WorldClinic is a concierge medical practice with annual memberships. Its services are not covered by insurance.

How much does a membership at WorldClinic cost?

The Silver annual membership starts at $4,000 and the Gold annual membership starts at $8,000. Both are priced by age.

Does WorldClinic offer telehealth?

The practice delivers care anytime and anywhere through its telemedicine app.

Are you Dr. Lang? Claim this profile for free. Report a correction.

Ready to contact WorldClinic?