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

Dr. William L Duncan Jr., MD

Individual provider Urology Physician · NPI 1780676098

Dr. William L Duncan Jr., MD is an Urology Physician in McComb, Mississippi. Licensed in Arkansas and Mississippi. Registered with an NPI since 2005.

Licensed in
AR, MS
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

1015 Delaware Ave Ste B
McComb, MS 39648-3827
Phone: (601) 250-4275
Fax: (601) 249-0957
Show map & directions

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

Specialties & licences

Urology Physician (primary) Taxonomy 208800000X · Licence 16480 (MS)
Specialist Taxonomy 174400000X · Licence E4521 (AR)

Record details

NPI number1780676098
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 22, 2005
Last updated in NPPESJuly 2, 2013

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