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

Byron R Williamson, DO

Individual provider Internal Medicine Physician · NPI 1518915081

Byron R Williamson, DO is an Internal Medicine Physician in Marion, Illinois. Licensed in Illinois. Registered with an NPI since 2006.

Licensed in
IL
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

3333 W Deyoung St
Marion, IL 62959-5884
Phone: (618) 998-7000
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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 036069470 (IL)

Record details

NPI number1518915081
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 5, 2006
Last updated in NPPESJune 16, 2008
Mailing address4750 Hempstead Station Dr, Kettering, OH 45429-5164

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