# GREGORY WAYNE GRZESIK, DO
> **HOSPITALIST** · MARSHFIELD, WI
## Provider
- **NPI:** 1316389372
- **Credential:** DO
- **Primary specialty:** HOSPITALIST
- **Gender:** Male
- **Medical school:** LAKE ERIE COLLEGE OF OSTEOPATHIC MEDICINE, ERIE
- **Graduation year:** 2013
## Practice
- **Address:** 1000 N OAK AVE, MARSHFIELD, WI 544495703
- **Phone:** 7153875511
- **Accepts Medicare assignment:** Yes (individual)
- **Telehealth:** No
## Source
- [NPI Registry](https://npiregistry.cms.hhs.gov/provider-view/1316389372)
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