Dr. John D. Clark, MD
Critical Care Medicine (Critical Care Medicine (Internal Medicine) Physician)
2030 North Church Place
Spartanburg, SC 29303
Who else practices at this address →
Spartanburg County is a federal mental health shortage area. About shortage areas
- Medicare participating
At a glance
- Medical school
- University of Tennessee, Hsc, College of Medicine (1985)
- Years since graduation
- 41
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 615
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
- 1985Medical school: University of Tennessee, Hsc, College of Medicine
- 2006Registered 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
-
Critical Care Medicine (Internal Medicine) Physician primary
SC license 19596 -
Internal Medicine Physician
SC license 19596 -
Pulmonary Disease Physician
SC license 19596 -
Sleep Medicine (Internal Medicine) Physician
SC license 19596
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Spartanburg Medical Center Spartanburg, SC
- Pelham Medical Center Greer, SC
- Cherokee Medical Center Gaffney, SC
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
- 615
- Services billed
- 2,322
- Patients’ average age
- 74
| Service | Times | Patients |
|---|---|---|
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 638 | 127 |
| Established patient office or other outpatient visit, 30-39 minutes | 446 | 283 |
| Test to measure expiratory airflow and volume | 306 | 216 |
| X-ray of chest, 2 views | 226 | 188 |
| Established patient office or other outpatient visit, 20-29 minutes | 164 | 153 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 155 | 53 |
| New patient office or other outpatient visit, 60-74 minutes | 76 | 76 |
| Test to measure expiratory airflow and volume changes before and after medication administration | 72 | 72 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 69 | 65 |
| Insertion of needle into vein for collection of blood sample | 66 | 59 |
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 |
|---|---|
| Trelegy Ellipta (fluticasone/umeclidin/vilanter) Other prescribers in Spartanburg, SC | 573 |
| Albuterol Sulfate Hfa (albuterol sulfate) Other prescribers in Spartanburg, SC | 520 |
| Prednisone Other prescribers in Spartanburg, SC | 331 |
| Breztri Aerosphere (budesonide/glycopyr/formoterol) Other prescribers in Spartanburg, SC | 150 |
| Breo Ellipta (fluticasone/vilanterol) Other prescribers in Spartanburg, SC | 119 |
| Montelukast Sodium Other prescribers in Spartanburg, SC | 68 |
| Symbicort (budesonide/formoterol fumarate) Other prescribers in Spartanburg, SC | 61 |
| Stiolto Respimat (tiotropium br/olodaterol hcl) Other prescribers in Spartanburg, SC | 59 |
| Anoro Ellipta (umeclidinium brm/vilanterol tr) Other prescribers in Spartanburg, SC | 57 |
| Azithromycin Other prescribers in Spartanburg, SC | 38 |
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, 24 companies reported 142 payments worth $3,263 in total to this clinician.
| AstraZeneca Pharmaceuticals LP | $432 |
|---|---|
| GlaxoSmithKline, LLC. | $330 |
| Actelion Pharmaceuticals US, Inc. | $290 |
| Regeneron Healthcare Solutions, Inc. | $274 |
| Genzyme Corporation | $258 |
| Verona Pharma, Inc. | $222 |
| Harmony Biosciences LLC | $190 |
| Axsome Therapeutics, Inc. | $181 |
| Food and Beverage | $3,177 |
|---|---|
| Education | $86.37 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Sun Pharmaceutical Industries Inc. Aug 27, 2025 | Education in-kind | $68.99 |
| Insmed, Inc. Sep 25, 2025 | Education Brinsupri; Brinsupri · Respiratory · in-kind | $17.38 |
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.