Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Katherine Johnson, MD

Individual provider Family Medicine Physician · NPI 1851739676

Katherine Johnson, MD is registered under Family Practice in Greenwood, South Carolina. Graduated from University of Kentucky College of Medicine in 2013, 13 years ago. Practices with Self Medical Group, a 396-clinician group, works from 3 locations, accepts Medicare assignment and offers telehealth. Licensed in South Carolina.

Years since qualifying
13
Trained at
University of Kentucky College of Medicine
Licensed in
SC
In the registry since
2013
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

1132 Spring St
Greenwood, SC 29646-3859
Phone: (864) 725-1680
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 901 W Greenwood St Ste 1, Abbeville, SC 29620-5727 — (864) 366-9681
  • 6 College St, Due West, SC 29639-9554 — (864) 379-2345

Specialties & licences

Diabetology (Family Medicine) Physician (primary) Taxonomy 207QD0401X · Licence 35716 (SC)
Family Medicine Physician Taxonomy 207Q00000X · Licence 35716 (SC)

Record details

NPI number1851739676
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 14, 2013
Last updated in NPPESJuly 10, 2026
Certification dateJuly 10, 2026

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolUNIVERSITY OF KENTUCKY COLLEGE OF MEDICINE
Graduated 2013 (13 years in practice)
Group practice Self Medical Group — 396 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations18 on file with Medicare

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 patients323
Services billed 1,335 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Compensation for services other than consulting , including serving as faculty or as a speaker at a venue other than a continuing education program $57,591 37 payments
Travel and Lodging $7,391 33 payments · travel or lodging paid or reimbursed, such as to attend a conference
Honoraria $4,241 3 payments
Food and Beverage $2,823 78 payments · a meal or drink at a meeting or visit, not a fee
Consulting Fee $1,460 1 payment
Education $175 3 payments · educational material or training, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Self Medical Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 396 clinicians in the practice; 12 are shown here.

Other providers in Greenwood