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

LEX R CHEN, MD

HOSPITALIST

Medical school: NORTHWESTERN UNIVERSITY FEINBERG MEDICAL SCHOOL

Graduated: 2008

Also: INTERNAL MEDICINE

NPI: 1265607956

Practice Locations (4)

SOUTHERN CALIFORNIA PERMANENTE MEDICAL GROUP

5475 E LA PALMA AVE

ANAHEIM, CA 928072075

7142796088

SOUTHERN CALIFORNIA PERMANENTE MEDICAL GROUP

6640 ALTON PKWY

IRVINE, CA 926183734

9499325000

SOUTHERN CALIFORNIA PERMANENTE MEDICAL GROUP

6650 ALTON PKWY

IRVINE, CA 926183734

9499325000

SOUTHERN CALIFORNIA PERMANENTE MEDICAL GROUP

6670 ALTON PKWY

IRVINE, CA 926183734

9499325000

Source: CMS National Downloadable File, September 2026.

LEX CHEN, MD | HealthCareAtlasUSA