John Chang, MD
Gastroenterology · San Diego, CA
John Chang, MD is a gastroenterology in San Diego, CA with about 25 yrs in practice.
- SpecialtyGastroenterology
- Medical schoolTEMPLE UNIVERSITY SCHOOL OF MEDICINE (2001)
- TelehealthOffers telehealth visits
- Practice size2,061 clinicians
- Medicare assignmentAccepts assignment (Medicare-approved amount as full payment)
- Medicare activity~214 patients across 380 services, avg age 70
Common services
| Service | Medicare services | Medicare allows | |
|---|---|---|---|
| Biopsy of large bowel using a flexible endoscope | 126 | $71 | See prices → |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 117 | $256 | See prices → |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 50 | $99 | See prices → |
| Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | 15 | $174 | See prices → |
| Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 13 | $96 | See prices → |
Hospital affiliations
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.