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

Mr. David Robert Riedel, MD

Individual provider Gastroenterology Physician · NPI 1073505004

Mr. David Robert Riedel, MD is a Gastroenterology Physician in Alton, Illinois. Practices as a sole proprietor and works from 2 locations. Licensed in Illinois.

Licensed in
IL
In the registry since
2005
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

4 Memorial Dr Ste 230
Alton, IL 62002-6704
Phone: (618) 463-7874
Fax: (618) 463-7846
Show map & directions

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

Additional practice locations (1)

  • 3550 College Ave, Alton, IL 62002-5008 — (618) 462-3200

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 036-060307 (IL)

Record details

NPI number1073505004
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 16, 2005
Last updated in NPPESMarch 12, 2021
Certification dateMarch 12, 2021
Mailing address4 Memorial Dr Ste 230, Alton, IL 62002-6704

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