HealthCareAtlasUSA

This site republishes official CMS/Medicare Care Compare data. It is not medical advice and does not recommend any specific hospital or treatment — for medical decisions, talk to a doctor.

Doctors / CA

CHRISTEN LEE, PA

PHYSICIAN ASSISTANT

Graduated: 2008

NPI: 1710280383

Practice Locations (3)

KEITH MARK GROSS MD INC

655 S 7TH AVE

BARSTOW, CA 923113001

7602553376

KEITH MARK GROSS MD INC

1113 ALTA AVE, SUITE 200

UPLAND, CA 917862803

9099851948

KEITH MARK GROSS MD INC

12550 HESPERIA RD, SUITE 218

VICTORVILLE, CA 923955873

7609519895

Source: CMS National Downloadable File, September 2026.