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

Mr. David L Duke III, MD

Individual provider Internal Medicine Physician · NPI 1255492211

Mr. David L Duke III, MD practises Internal Medicine in Nacogdoches, Texas. Graduated from Baylor College of Medicine in 1982, 44 years ago. Licensed in Texas.

Years since qualifying
44
Trained at
Baylor College of Medicine
Licensed in
TX
In the registry since
2006
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

1216 Raguet
Nacogdoches, TX 75961-4228 Not confirmed with CMS for 19 years — call before visiting
Phone: (936) 560-5537
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence G3311 (TX)

Record details

NPI number1255492211
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 13, 2006
Last updated in NPPESJuly 8, 2007

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolBAYLOR COLLEGE OF MEDICINE
Graduated 1982 (44 years in practice)
Accepts Medicare assignment Not indicated

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 patients72
Services billed 578 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Other providers in Nacogdoches