Elmer Chang, M.D.
Gastroenterology · Mission Viejo, CA
Elmer Chang, M.D. is a gastroenterology in Mission Viejo, CA with about 28 yrs in practice.
- SpecialtyGastroenterology
- Medical schoolNORTHWESTERN UNIVERSITY FEINBERG MEDICAL SCHOOL (1998)
- TelehealthOffers telehealth visits
- Practice size1,465 clinicians
- Medicare assignmentAccepts assignment (Medicare-approved amount as full payment)
- Medicare activity~434 patients across 1,341 services, avg age 74
Common services
| Service | Medicare services | Medicare allows | |
|---|---|---|---|
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | 328 | $136 | See prices → |
| Biopsy of large bowel using a flexible endoscope | 192 | $73 | See prices → |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 149 | $45 | See prices → |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | 149 | $98 | See prices → |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 130 | $232 | See prices → |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | 52 | $173 | See prices → |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | 47 | $120 | 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.