![John Jefferies](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
John Jefferies
Chief Tech/Sci/R&D Officer at
DAXOR CORPORATION
Net worth: 112 371 $ as of 2026-05-30
Profile
John L.
Jefferies is currently a Professor at the University of Cincinnati (Ohio), Chief-Cardiology at The University of Tennessee Health Science Center, Professor-Pediatric Cardiology at St. Jude Children's Research Hospital, Inc., and Chief Medical Officer at Daxor Corp.
since 2024.
Formerly, Dr. Jefferies was Chief Medical Officer at Nuwellis, Inc. Education includes graduate degrees from the University of Kentucky and the University of Tennessee College of Medicine, and an MBA from The Wharton School of the University of Pennsylvania.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
DAXOR CORPORATION 0.19% | 2026-05-19 | 10,931 ( 0.19% ) | 112 371 $ | 2026-05-30 |
John Jefferies active positions
| Companies | Position | Start |
|---|---|---|
| DAXOR CORPORATION | Chief Tech/Sci/R&D Officer | 2024-06-04 |
The University of Tennessee Health Science Center
 The University of Tennessee Health Science Center Other Consumer ServicesConsumer Services Functions as a College/University | Corporate Officer/Principal | - |
St. Jude Children's Research Hospital, Inc.
 St. Jude Children's Research Hospital, Inc. Hospital/Nursing ManagementHealth Services Offers health care and social assistance services for children | Corporate Officer/Principal | - |
University of Cincinnati (Ohio)
 University of Cincinnati (Ohio) Other Consumer ServicesConsumer Services Functions as a College/University | Corporate Officer/Principal | - |
Former positions of John Jefferies
| Companies | Position | End |
|---|---|---|
| NUWELLIS, INC. | Chief Tech/Sci/R&D Officer | - |
Training of John Jefferies
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
79
1st degree connections
8
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 8 |
|---|---|
Daxor Corp.
 Daxor Corp. Investment Trusts/Mutual FundsMiscellaneous Functions as a closed-end investment fund or Investment trust | Miscellaneous |
Nuwellis, Inc.
 Nuwellis, Inc. Medical SpecialtiesHealth Technology Develops heart assist devices | Health Technology |
University of Cincinnati (Ohio)
University of Cincinnati (Ohio) Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
University of Kentucky
 University of Kentucky Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
St. Jude Children's Research Hospital, Inc.
St. Jude Children's Research Hospital, Inc. Hospital/Nursing ManagementHealth Services Offers health care and social assistance services for children | Health Services |
The Wharton School of the University of Pennsylvania
 The Wharton School of the University of Pennsylvania Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
The University of Tennessee Health Science Center
The University of Tennessee Health Science Center Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
University of Tennessee College of Medicine
 University of Tennessee College of Medicine Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
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