Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Dr. John Alexander Johnson, MD

Individual provider Internal Medicine Physician · NPI 1699764555

Dr. John Alexander Johnson, MD is an Internal Medicine Physician in Seneca, South Carolina. Works from 2 locations. Licensed in Georgia and South Carolina.

Licensed in
GA, SC
In the registry since
2005
Specialties on file
2
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

298 Memorial Dr
Seneca, SC 29672-9443
Phone: (864) 885-7758
Fax: (864) 885-7749
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 6128 Prestley Mill Rd, Douglasville, GA 30134-5621 — (770) 942-6903

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 38746 (SC)
Internal Medicine Physician Taxonomy 207R00000X · Licence 046866 (GA)

Record details

NPI number1699764555
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 13, 2005
Last updated in NPPESAugust 25, 2022
Certification dateAugust 25, 2022

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients28
Services billed 65 a service is one billed item, such as a visit, a test or a procedure
Average patient age78

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

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