Dr. John L. Gwin JR., M.D.
General Surgery (Surgery Physician)
- Medicare participating
At a glance
- Medical school
- Yale University School of Medicine (1984)
- Years since graduation
- 42
- In the NPI registry since
- 2005
- Medicare patients seen, 2024
- 201
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
- 1984Medical school: Yale 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
-
Surgery Physician primary
TN license 24584 -
Specialist
TN license MD24584
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Memorial Healthcare System, Inc Chattanooga, TN
- Commonspirit-Memorial Hospital-North Georgia Ringgold, GA
Medical groups
- Memorial Health PArtners Foundation Inc (485 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
- 201
- Services billed
- 1,423
- Patients’ average age
- 75
| Service | Times | Patients |
|---|---|---|
| Removal of skin and tissue, 20.0 sq cm or less | 401 | 88 |
| Established patient office or other outpatient visit, 20-29 minutes | 280 | 115 |
| Management of oxygen chamber therapy | 209 | 17 |
| Established patient office or other outpatient visit, 10-19 minutes | 93 | 63 |
| Removal of skin and tissue, each additional 20.0 sq cm or less | 78 | 12 |
| Removal of muscle and/or tissue, 20.0 sq cm or less | 55 | 25 |
| Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 36 | 23 |
| Established patient office or other outpatient visit, 30-39 minutes | 27 | 20 |
| New patient office or other outpatient visit, 45-59 minutes | 21 | 21 |
| Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 19 | 18 |
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 |
|---|---|
| Doxycycline Hyclate Other prescribers in Chattanooga, TN | 23 |
| Sulfamethoxazole-Trimethoprim (sulfamethoxazole/trimethoprim) Other prescribers in Chattanooga, TN | 23 |
| Santyl (collagenase clostridium hist.) | 21 |
| Ciprofloxacin Hcl Other prescribers in Chattanooga, TN | 13 |
| Levofloxacin Other prescribers in Chattanooga, TN | 13 |
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 30 payments worth $813 in total to this clinician.
| Integra Lifesciences Corporation | $341 |
|---|---|
| Johnson & Johnson Vision Care, Inc. | $178 |
| Smith+nephew, Inc. | $98.04 |
| Solventum Corporation | $44.17 |
| Bsn Medical Inc | $42.77 |
| Kerecis Limited | $40.18 |
| Organogenesis Inc. | $34.99 |
| Cashflow Solutions, LLC | $18.29 |
| Food and Beverage | $813 |
|---|
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.