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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

WILLIAM D PLUMMER MD
NPI 1376516799
Internal Medicine in Seneca, SC

Active since February 08, 2006
501 ROCHESTER HWY, SUITE D, SENECA, SC 29672(864) 886-0080 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About William D Plummer Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WILLIAM D PLUMMER MD (NPI 1376516799) is an individual internal medicine provider in Seneca, South Carolina, licensed in South Carolina (20860) and active in the NPI registry since February 2006.

NPPES Registry Identity

NPI1376516799
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameWILLIAM D PLUMMERCredential: MD
Location Address501 ROCHESTER HWY, SUITE DSeneca, SC 29672-2463
Mailing Address501 Rochester Hwy, Suite DSeneca, SC 29672-2463 · (864) 886-0080
Phone(864) 886-0080
Sole ProprietorNo
Enumeration DateFebruary 8, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1376516799 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in SC · 20860
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
501 ROCHESTER HWY, Seneca, SC 29672
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Other Identifiers 1

Medicaid208607SC

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

IRENE TALLEY PARKER MD
Internal Medicine (Gastroenterology)
501 ROCHESTER HWY, SUITE D
SENECA, SC 29672
Oconee County (864) 886-0080
LAUREL MEDICAL GROUP
Internal Medicine (Gastroenterology)
501 ROCHESTER HWY, SUITE D
SENECA, SC 29672
Oconee County (864) 886-0080

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Plummer's NPI number?

The NPI number for William Plummer is 1376516799. It was assigned to this individual provider in the NPPES registry on February 8, 2006.

Where is William Plummer located?

William Plummer practices at 501 Rochester Hwy Suite D, Seneca, SC 29672. The listed phone number is (864) 886-0080.

What is William Plummer's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for William Plummer was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 39 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.