A Department of First Texas Hospital
Now Accepting All Insurance

Locations » Houston Area » Sienna Plantation

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First Choice Emergency Room

Sienna Plantation LOCATION


8927 Hwy 6

Missouri City, TX 77459


Open 24 Hours


(281) 778-8240


First Choice Emergency Room, a department of First Texas Hospital, is the nation’s leading freestanding emergency room system; it is both largest and the oldest. First Choice Emergency Room facilities are innovative, freestanding, and fully equipped emergency rooms with state of the art diagnostic technology (CT Scanners, Ultrasound, Digital X-ray) and on-site labs. All First Choice Emergency Room locations are exclusively staffed with board-certified emergency physicians and emergency trained registered nurses.

Our Sienna Plantation ER is located on Highway 6 at the corner of Sienna Parkway in Missouri City, TX.

We accept all insurance including Medicare, Medicaid, and Tricare.


Douglas J. Harrison, D.O.

Dr. Harrison received his undergraduate degree from The University of Texas at El Paso and his medical degree from The University of North Texas Health Science Center College of Osteopathic Medicine. He completed his residency in emergency medicine at Michigan State University. Prior to joining First Choice Emergency Room, Dr. Harrison served as the Emergency Department Medical Director at Memorial Hermann Southwest Hospital in Houston Texas. Dr. Harrison is board-certified in Emergency Medicine and has over 10 years of experience practicing emergency medicine. He also currently serves as the Facility Medical Director of First Choice Emergency Room- Missouri City Lakes.