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

Dr. Lewis Alvin Duncan, MD

Individual provider Medical Oncology Physician · NPI 1821031253

Dr. Lewis Alvin Duncan, MD is a Medical Oncology Physician in Longview, Texas. Licensed in Texas. Registered with an NPI since 2006.

Licensed in
TX
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

1300 N 4th St
Longview, TX 75601-4717
Phone: (903) 757-2122
Fax: (903) 757-9475
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Medical Oncology Physician (primary) Taxonomy 207RX0202X · Licence E1562 (TX)

Record details

NPI number1821031253
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 14, 2006
Last updated in NPPESFebruary 18, 2008
Mailing addressPo Box 911230, Dallas, TX 75391-1230

Other providers in Longview