Santa Clarita-based U.S. HealthWorks, one of the nation’s largest operators of occupational healthcare and urgent care centers, announced the acquisition Monday of the Pacific Walk-In Clinic, located at 3928 Pacific Avenue Southeast in Lacey, Wash.

The Pacific Walk-In Clinic acquisition brings the number of U.S. HealthWorks operated medical centers in Washington to 18 and increases the number of centers and worksite locations to 174 nationwide. Terms of the transaction, effective January 19, 2012, were not disclosed.

The Pacific Walk-In Clinic is open seven days a week and has provided the Lacey community with a reliable urgent care center for over 10 years.

The clinic offers a wide range of urgent care services as well as occupational medicine, including diagnosis and treatment for injury and illness, preventive services, pre-employment and post-offer exams and screening, and return-to-work rehabilitative care.

“We are delighted to be a part of a strong and growing organization like U.S. HealthWorks,” said Patricia Sylwester, MD, the Center Medical Director for the Lacey clinic. “U.S. HealthWorks has a large presence in Washington and has a great reputation for providing excellent medical care. It’s exciting to join a company that offers many innovative approaches during these changing times in healthcare coverage.”

“We’re thrilled to increase our coverage in Washington and to welcome Dr. Sylwester and her team to U.S. HealthWorks,” said Dr. Andy Parker, Senior Vice President of Operations. “This new location offers our existing clients and patients another choice in where they can receive care.”

About U.S. HealthWorks

Headquartered in Valencia, Calif., U.S. HealthWorks was founded in 1995 and is the second-largest operator of occupational health care centers in the nation. With 174 clinics and worksites in 15 states and over 2,700 employees — including approximately 600 medical providers — U.S. HealthWorks centers serve over 11,000 patients each day throughout the country. U.S. HealthWorks centers help employers control work-related injury costs through quality medical care and effective management of claims and lost work time, specializing in early return-to-work programs, injury prevention and wellness programs.