Doctor profile · Federal record
Dr. John Clark, MD
Critical Care Medicine (Internal Medicine) Physician (CMS: Pulmonary Disease) · Pulmonary Disease Physician · Internal Medicine Physician · Sleep Medicine (Internal Medicine) Physician · Spartanburg, SC
- NPI 1194798595
- Accepts Medicare
- MIPS 75.0 / 100 · 2023
- 41 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
2030 North Church Place
Spartanburg, SC 29303
(864) 582-6858
fax (864) 585-0999 - Mailing address
-
Po Box 4276
Spartanburg, SC 29305
Credentials & registration
- NPI registered
- February 2006 — 20 yrs on file
- Profile last updated
- December 28, 2015
- Year of graduation
- 1985 — 41 yrs since
- Specialty taxonomy
- 207RC0200X — NUCC code
- State license (1)
- South Carolina #19596
- Medicaid
- SC #T36609
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1194798595. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
2,542
Distinct HCPCS
10
Medicare allowed
$204,464
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 638 | 127 | $75 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 446 | 283 | $118 | |
94010 |
Test to measure expiratory airflow and volume | 306 | 216 | $24 | |
71046 |
X-ray of chest, 2 views | 226 | 188 | $31 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 164 | 153 | $84 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 155 | 53 | $109 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 76 | 76 | $207 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 69 | 65 | $165 | |
36415 |
Insertion of needle into vein for collection of blood sample | 66 | 59 | $8 | |
94060 |
Test to measure expiratory airflow and volume changes before and after medication administration | 58 | 58 | $35 |
In context: peer comparison
Among 5 peers in Spartanburg Critical Care Medicine (Internal Medicine) Physician, average services per provider: 111. This provider delivers 23× the peer median.Open Payments
Industry payments received
All-time total
$2,799
Transactions
105
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| AstraZeneca Pharmaceuticals Lp | 16 | $568.86 | |
| GlaxoSmithKline, LLC. | 17 | $380.89 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | 9 | $260.73 | |
| Regeneron Healthcare Solutions, INC. | 9 | $257.32 | |
| Axsome Therapeutics, INC. | 7 | $249.99 | |
| Actelion Pharmaceuticals US, INC. | 6 | $196.59 | |
| Electromed, INC. | 13 | $177.77 | |
| Gilead Sciences, INC. | 6 | $119.29 | |
| Avadel CNS Pharmaceuticals, LLC | 6 | $117.84 | |
| Genzyme Corporation | 4 | $112.24 | |
| Takeda Pharmaceuticals U.S.A., INC. | 4 | $94.54 | |
| Grifols USA, LLC | 3 | $64.13 | |
| Ethicon INC. | 1 | $63.81 | |
| Insmed, INC. | 2 | $47.67 | |
| Harmony Biosciences LLC | 2 | $37.70 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
2,070
Patients
614
Total drug cost
$927,496
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Trelegy Ellipta (Fluticasone/Umeclidin/Vilanter) | Brand | 530 | 121 | $467,335 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 427 | 131 | $19,221 |
| Prednisone | Generic | 307 | 183 | $1,526 |
| Breztri Aerosphere (Budesonide/Glycopyr/Formoterol) | Brand | 141 | 35 | $117,154 |
| Breo Ellipta (Fluticasone/Vilanterol) | Brand | 130 | 26 | $76,387 |
| Symbicort (Budesonide/Formoterol Fumarate) | Brand | 125 | 28 | $75,813 |
| Montelukast Sodium | Generic | 74 | 15 | $729 |
| Anoro Ellipta (Umeclidinium Brm/Vilanterol Tr) | Brand | 71 | 22 | $43,688 |
| Stiolto Respimat (Tiotropium Br/Olodaterol Hcl) | Brand | 59 | 16 | $41,752 |
| Azithromycin | Generic | 43 | 37 | $174 |
Frequently asked questions
What is Dr. John Clark's medical specialty?
Dr. John Clark practices Critical Care Medicine (Internal Medicine) Physician in Spartanburg, SC.
Where does Dr. John Clark practice?
Dr. John Clark practices at 2030 North Church Place, Spartanburg, SC 29303. Office phone: 8645826858.
What is Dr. John Clark's NPI?
Dr. John Clark's National Provider Identifier (NPI) is 1194798595, issued by NPPES.
Does Dr. John Clark accept Medicare assignment?
Yes. Dr. John Clark accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Clark commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Established patient office or other outpatient visit (HCPCS 99214); Test to measure expiratory airflow and volume (HCPCS 94010). Source: CMS Medicare Physician & Other Practitioners file.