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

ALLEN SEBASTIAN MATHEW, MD

NEPHROLOGY

Medical school: UNIVERSITY OF MISSOURI, COLUMBIA SCHOOL OF MEDICINE

Graduated: 1982

Also: INTERNAL MEDICINE

Offers telehealth

NPI: 1417053075

Practice Locations (2)

2316 HARRISON AVE

EUREKA, CA 955013217

7074442534

2765 TIMBER RIDGE LN

EUREKA, CA 955034885

7074442534

Source: CMS National Downloadable File, September 2026.