John Grehan, MD PHD
Thoracic Surgery · Sioux Falls, SD
John Grehan, MD PHD is a thoracic surgery in Sioux Falls, SD with about 31 yrs in practice.
- SpecialtyThoracic Surgery
- Medical schoolUNIVERSITY OF MINNESOTA MEDICAL SCHOOL (1995)
- TelehealthNot reported
- Practice size273 clinicians
- Medicare assignmentAccepts assignment (Medicare-approved amount as full payment)
- Medicare activity~184 patients across 360 services, avg age 76
Common services
| Service | Medicare services | Medicare allows | |
|---|---|---|---|
| Replacement of aortic valve through the skin and femoral artery | 74 | $662 | See prices → |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | 27 | $171 | See prices → |
| Coronary artery bypass using artery graft, 1 graft | 26 | $1,421 | See prices → |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | 26 | $142 | 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.