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

Mark Alan Regnier, MD

Individual provider Pediatrics Physician · NPI 1851398663

Mark Alan Regnier, MD is a Pediatrics Physician in Sycamore, Illinois. Practices as a sole proprietor. 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

1830 Mediterranean Dr
Sycamore, IL 60178-3144
Phone: (815) 899-0001
Fax: (815) 899-0002
Show map & directions

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

Specialties & licences

Pediatrics Physician (primary) Taxonomy 208000000X · Licence 036097453 (IL)

Record details

NPI number1851398663
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 7, 2005
Last updated in NPPESJuly 6, 2011
Mailing address1830 Mediterranean Dr, Sycamore, IL 60178-3144

Other providers in Sycamore