Mark Johnston, MD
Gastroenterology · Lancaster, PA
Mark Johnston, MD is a gastroenterology in Lancaster, PA with about 41 yrs in practice.
- SpecialtyGastroenterology
- Medical schoolHAHNEMANN UNIVERSITY COLLEGE OF MEDICINE (1985)
- TelehealthNot reported
- Practice size251 clinicians
- Medicare assignmentAccepts assignment (Medicare-approved amount as full payment)
- Medicare activity~339 patients across 578 services, avg age 73
Common services
| Service | Medicare services | Medicare allows | |
|---|---|---|---|
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 102 | $238 | See prices → |
| Biopsy of large bowel using a flexible endoscope | 99 | $97 | See prices → |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 71 | $97 | See prices → |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | 46 | $86 | See prices → |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | 42 | $121 | See prices → |
| Colorectal cancer screening; colonoscopy on individual at high risk | 22 | $160 | See prices → |
| Dilation of esophagus | 19 | $37 | See prices → |
| Administration of chemotherapy into vein, 1 hour or less | 16 | $118 | See prices → |
| Administration of chemotherapy into vein, each additional hour | 16 | $26 | See prices → |
| Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | 16 | $167 | See prices → |
Source: CMS Medicare Physician & Other Practitioners and the Doctors & Clinicians National Downloadable File (most recent release). Counts reflect Original Medicare activity only and are not a measure of quality. “Medicare allows” is the Medicare fee schedule amount — not what an insured or cash patient pays; for patient prices see the linked procedure pages. Always confirm a clinician’s current details with their office.