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

Mark L Day, MD

Individual provider Emergency Medicine Physician · NPI 1174679237

Mark L Day, MD is an Emergency Medicine Physician in Staunton, Illinois. Practices as a sole proprietor. Licensed in Illinois.

Licensed in
IL
In the registry since
2007
Specialties on file
3
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

400 N Caldwell St
Staunton, IL 62088-1173
Phone: (618) 635-2200
Fax: (618) 635-3400
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 036.117437 (IL)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 036.117437 (IL)
Critical Access Hospital Taxonomy 282NC0060X

Record details

NPI number1174679237
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJanuary 25, 2007
Last updated in NPPESSeptember 29, 2020
Certification dateSeptember 29, 2020
Mailing address200 Corporate Blvd, Lafayette, LA 70508-3870

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