John Douglas Clark, MD
Critical Care (Intensivists) · Pulmonary Disease · Sleep Medicine (CMS) · Spartanburg, SC
At a glance
2030 North Church Place, Spartanburg, SC 29303
NPPES record updated Dec 28, 2015. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
2030 North Church PlaceSpartanburg, SC 29303
Education & affiliations
- Medical / professional school
- University Of Tennessee, Hsc, College Of Medicine
- Graduation year
- 1985
- CMS specialties
- Critical Care (Intensivists) · Pulmonary Disease · Sleep Medicine
Reported hospital affiliations
- Cherokee Medical Center Gaffney, SC
- Pelham Medical Center Greer, SC
- Spartanburg Medical Center Spartanburg, SC
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Food and beverage | $3,176.51 |
| Education | $86.37 |
Reporting companies
| Company | Amount |
|---|---|
| ASTRAZENECA PHARMACEUTICALS LP | $432.00 |
| GLAXOSMITHKLINE, LLC. | $330.41 |
| ACTELION PHARMACEUTICALS US, INC. | $290.36 |
| REGENERON HEALTHCARE SOLUTIONS, INC. | $274.27 |
| GENZYME CORPORATION | $258.19 |
| VERONA PHARMA, INC. | $222.08 |
| HARMONY BIOSCIENCES LLC | $190.49 |
| AXSOME THERAPEUTICS, INC. | $181.41 |
| Other reporting companies | $1,083.67 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Critical Care (Intensivists) · Pulmonary Disease · Sleep Medicine (CMS)
- Taxonomy code
- 207RC0200X
- Enumeration date
- Feb 8, 2006
- Record updated
- Dec 28, 2015
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- MD
Reported taxonomies and licenses
207RP1001X
License reported: 19596 SC
207R00000X
License reported: 19596 SC
207RC0200X · Primary
License reported: 19596 SC
207RS0012X
License reported: 19596 SC
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
2030 North Church PlaceSpartanburg, SC 29303
- Phone
- (864) 582-6858
- Fax
- (864) 585-0999
Mailing address
PO BOX 4276SPARTANBURG, SC 29305
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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