# DAVID J MAST, MD
> **INTERNAL MEDICINE** · DULUTH, MN
## Provider
- **NPI:** 1912958331
- **Credential:** MD
- **Primary specialty:** INTERNAL MEDICINE
- **Gender:** Male
- **Medical school:** UNIVERSITY OF MINNESOTA MEDICAL SCHOOL
- **Graduation year:** 1985
## Practice
- **Address:** 1015 E 1ST ST, DULUTH, MN 558052242
- **Phone:** 2182497860
- **Accepts Medicare assignment:** Yes (individual)
- **Telehealth:** No
## Source
- [NPI Registry](https://npiregistry.cms.hhs.gov/provider-view/1912958331)
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