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 / DC

MATTHIAS HOLDHOFF, MD

MEDICAL ONCOLOGY

Graduated: 2003

Also: INTERNAL MEDICINE

Offers telehealth

NPI: 1386709046

Practice Locations (3)

JOHNS HOPKINS UNIVERSITY

5255 LOUGHBORO RD NW

WASHINGTON, DC 200162633

2025374000

JOHNS HOPKINS UNIVERSITY

600 N WOLF ST

BALTIMORE, MD 212870005

4109555000

JOHNS HOPKINS UNIVERSITY

8600 OLD GEORGETOWN RD

BETHESDA, MD 208141422

3018963100

Source: CMS National Downloadable File, September 2026.

MATTHIAS HOLDHOFF, MD | HealthCareAtlasUSA