Gastroenterology · Lancaster, PA
Mark JohnstonMD
Gastroenterology provider in Lancaster, PA affiliated with ambulatory surgery centers.
Mark Johnston at a glance
- Provider
- Mark Johnston
- Credential
- MD
- Specialty
- Gastroenterology
- Location
- Lancaster, PA
- NPI registered
- 2005
- NPI
- 1003898131
Ambulatory surgery centers
ASCs this provider is associated with in claims and affiliation records.
Reference profile compiled from public provider registries (NPPES) and CMS data. Identity, specialty, and affiliations change over time. This is not an endorsement, and not clinical, billing, or legal advice. Providers may request corrections at founders@datalilyai.com.