Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. John Douglas Clark, MD

Individual provider Pulmonary Disease Physician · NPI 1194798595

Dr. John Douglas Clark, MD is a Pulmonary Disease in Spartanburg, South Carolina. Graduated from University of Tennessee, Hsc, College of Medicine in 1985, 41 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in South Carolina.

Years since qualifying
41
Trained at
University of Tennessee, Hsc, College of Medicine
Licensed in
SC
In the registry since
2006
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2030 N Church Pl
Spartanburg, SC 29303
Phone: (864) 582-6858
Fax: (864) 585-0999
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Critical Care Medicine (Internal Medicine) Physician (primary) Taxonomy 207RC0200X · Licence 19596 (SC)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence 19596 (SC)
Internal Medicine Physician Taxonomy 207R00000X · Licence 19596 (SC)
Sleep Medicine (Internal Medicine) Physician Taxonomy 207RS0012X · Licence 19596 (SC)

Record details

NPI number1194798595
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedFebruary 8, 2006
Last updated in NPPESDecember 28, 2015

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPULMONARY DISEASE
Also practisesCRITICAL CARE (INTENSIVISTS), SLEEP MEDICINE
Medical schoolUNIVERSITY OF TENNESSEE, HSC, COLLEGE OF MEDICINE
Graduated 1985 (41 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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