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

Roger L Greenlaw, MD

Individual provider Gastroenterology Physician · NPI 1699761890

Roger L Greenlaw, MD is a Gastroenterology Physician in Rockford, Illinois. Licensed in Illinois. Registered with an NPI since 2005.

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

401 Roxbury Rd
Rockford, IL 61107-5075
Phone: (815) 397-7340
Fax: (815) 397-2156
Show map & directions

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

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 36051426 (IL)

Record details

NPI number1699761890
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 22, 2005
Last updated in NPPESSeptember 6, 2007

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