Dr. John R. Frederick, MD
Cardiothoracic Surgery (Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician)
- Medicare participating
At a glance
- Years since graduation
- 22
- In the NPI registry since
- 2007
- Medicare patients seen, 2024
- 149
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 2007Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Medicare’s Care Compare data doesn’t list this clinician’s medical school. Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician primary
NC license 2016-01623 -
Cardiovascular Disease Physician
NC license 2016-01623 -
Surgery Physician
NC license 2016-01623
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Carolinas Medical Center/behav Health Charlotte, NC
- Atrium Health Pineville Charlotte, NC
Medical groups
- Carolinas Physicians Network Inc (2,325 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 149
- Services billed
- 245
- Patients’ average age
- 76
| Service | Times | Patients |
|---|---|---|
| New patient office or other outpatient visit, 60-74 minutes | 82 | 82 |
| Replacement of aortic valve through the skin and femoral artery | 50 | 50 |
| Replacement of aortic valve on heart-lung machine | 21 | 21 |
| Established patient office or other outpatient visit, 40-54 minutes | 18 | 17 |
| Established patient office or other outpatient visit, 30-39 minutes | 18 | 18 |
| New patient office or other outpatient visit, 45-59 minutes | 16 | 16 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Payments from drug and device companies
In 2025, 7 companies reported 13 payments worth $806 in total to this clinician.
| Edwards Lifesciences Corporation | $405 |
|---|---|
| Atricure, Inc. | $203 |
| Abiomed | $47.27 |
| Artivion, Inc. | $45.30 |
| Zimmer Biomet Holdings, Inc. | $42.98 |
| Zoll Services LLC (a/k/a Zoll Lifecor Corp) | $38.49 |
| Lemaitre Vascular, Inc. | $24.08 |
| Food and Beverage | $806 |
|---|
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.
Industry-funded research
Named as a principal investigator on 2 industry-funded studies in 2025, from 2 companies. The companies reported $5,640 in research payments for these studies, mostly to the institutions running them.
- RELAYPRO-T
Bolton Medical Inc - Evaluation of the GORE® Ascending Stent Graft
W. L. Gore & Associates, Inc. · Enrolling by invitation · NCT05800743
From CMS Open Payments research payments, where companies name up to five principal investigators per payment. Research payments usually go to hospitals, universities and research sites, not to the investigator personally. A payment is not evidence of wrongdoing.