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

Robert Ryan Riech, MD, MPH

Individual provider Internal Medicine Physician · NPI 1437225935

Robert Ryan Riech, MD, MPH is an Internal Medicine in Chillicothe, Illinois. Qualified in 2003, 23 years ago. Practices with Osf Multi-Specialty Group, a 2,128-clinician group and accepts Medicare assignment. Licensed in Indiana.

Years since qualifying
23
Licensed in
IN
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
MPH — Master of Public Health
A graduate degree in population health.

See every abbreviation used in this directory →

Practice location Address checks out

319 N 4th St
Chillicothe, IL 61523-2059
Phone: (309) 673-6464
Fax: (309) 274-3120
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 01060841A (IN)
Pediatrics Physician Taxonomy 208000000X · Licence 01060841A (IN)

Record details

NPI number1437225935
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , MPH
Sole proprietorYes
NPI enumeratedNovember 27, 2006
Last updated in NPPESSeptember 25, 2007
Mailing address319 N 4th St, Chillicothe, IL 61523-2059

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Also practisesPEDIATRIC MEDICINE
Medical schoolOTHER
Graduated 2003 (23 years in practice)
Group practice Osf Multi-Specialty Group — 2128 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount