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

MATTHEW K NIENABER, DO

INTERNAL MEDICINE

Graduated: 2014

Offers telehealth

NPI: 1033535182

Practice Locations (2)

SVMHS CLINICS

355 ABBOTT ST, SUITE 100

SALINAS, CA 939014484

8317517070

PROVIDENCE SAINT JOHNS MEDICAL FOUNDATION

1821 WILSHIRE BLVD, SUITE 100

SANTA MONICA, CA 904035627

3105753100

Source: CMS National Downloadable File, September 2026.

MATTHEW NIENABER, DO | HealthCareAtlasUSA