Dr. Gerald S. Borrelli, M.D.
Nephrology (Kidney) (Nephrology Physician)
- Medicare participating
At a glance
- Medical school
- Virginia Commonwealth University, School of Medicine (1993)
- Years since graduation
- 33
- In the NPI registry since
- 2005
- Medicare patients seen, 2024
- 280
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
- 1993Medical school: Virginia Commonwealth University, School of Medicine
- 2005Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
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
-
Nephrology Physician primary
TN license MD31245
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Fort Sanders Regional Medical Center Knoxville, TN
- Leconte Medical Center Sevierville, TN
- Morristown Hamblen Hospital Association Morristown, TN
- Claiborne Medical Center Tazewell, TN
Medical groups
- East Tennessee Nephrology PC (5 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
- 280
- Services billed
- 1,348
- Patients’ average age
- 72
| Service | Times | Patients |
|---|---|---|
| Insertion of needle into vein for collection of blood sample | 347 | 117 |
| Established patient office or other outpatient visit, 30-39 minutes | 292 | 118 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 226 | 99 |
| Dialysis services, 4 or more physician visits per month (20 years or older) | 196 | 30 |
| Hemodialysis procedure with physician evaluation | 104 | 45 |
| Dialysis services, 2-3 physician visits per month (20 years or older) | 50 | 28 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 40 | 23 |
| Manual urinalysis test with examination using microscope, non-automated | 40 | 34 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 40 | 36 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 24 | 21 |
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.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Farxiga (dapagliflozin propanediol) Other prescribers in Knoxville, TN | 181 |
| Amlodipine Besylate Other prescribers in Knoxville, TN | 136 |
| Furosemide Other prescribers in Knoxville, TN | 125 |
| Hydralazine Hcl Other prescribers in Knoxville, TN | 97 |
| Sevelamer Carbonate Other prescribers in Knoxville, TN | 84 |
| Jardiance (empagliflozin) Other prescribers in Knoxville, TN | 67 |
| Calcitriol Other prescribers in Knoxville, TN | 67 |
| Velphoro (sucroferric oxyhydroxide) | 61 |
| Losartan Potassium Other prescribers in Knoxville, TN | 61 |
| Lokelma (sodium zirconium cyclosilicate) Other prescribers in Knoxville, TN | 52 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 9 companies reported 17 payments worth $4,774 in total to this clinician.
| Mallinckrodt Hospital Products Inc. | $4,554 |
|---|---|
| Calliditas Therapeutics US Inc. | $58.68 |
| Akebia Therapeutics Inc | $49.68 |
| Amgen Inc. | $23.35 |
| AstraZeneca Pharmaceuticals LP | $20.29 |
| Fresenius USA Marketing, Inc. | $19.27 |
| Nxstage Medical, Inc. | $18.48 |
| Novo Nordisk Inc | $16.27 |
| Compensation for services other than consulting (speaking, faculty) | $4,545 |
|---|---|
| Food and Beverage | $199 |
| Education | $30.41 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Mallinckrodt Hospital Products Inc. Oct 28, 2025 | Compensation for services other than consulting (speaking, faculty) ACTHAR · IMMUNOLOGY | $2,525 |
| Mallinckrodt Hospital Products Inc. Jan 24, 2025 | Compensation for services other than consulting (speaking, faculty) ACTHAR · IMMUNOLOGY | $2,020 |
| Novo Nordisk Inc Sep 30, 2025 | Education Ozempic · Diabetes · in-kind | $16.27 |
| Travere Therapeutics, Inc. Sep 29, 2025 | Education Thiola · Kidney Stones · in-kind | $3.82 |
| Travere Therapeutics, Inc. Sep 29, 2025 | Education Thiola · Kidney Stones · in-kind | $3.01 |
| Travere Therapeutics, Inc. Sep 29, 2025 | Education Thiola · Kidney Stones · in-kind | $2.55 |
| Travere Therapeutics, Inc. Mar 24, 2025 | Education Filspari · Kidney Disease · in-kind | $2.38 |
| Travere Therapeutics, Inc. May 19, 2025 | Education Filspari · Kidney Disease · in-kind | $2.38 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
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.