# WILLIAM CALLAHAN, DO
> **FAMILY PRACTICE** · PHILADELPHIA, PA · Offers telehealth
## Provider
- **NPI:** 1386907434
- **Credential:** DO
- **Primary specialty:** FAMILY PRACTICE
- **Gender:** Male
- **Medical school:** PHILADELPHIA COLLEGE OF OSTEOPATHIC MEDICINE
- **Graduation year:** 2012
## Practice
- **Address:** 101 E OLNEY AVE, PHILADELPHIA, PA 191202470
- **Phone:** 2159271937
- **Accepts Medicare assignment:** Yes (individual)
- **Telehealth:** Yes
## Source
- [NPI Registry](https://npiregistry.cms.hhs.gov/provider-view/1386907434)
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