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

Christopher William Nau, MD

Individual provider Pediatrics Physician · NPI 1104023092

Christopher William Nau, MD is an Internal Medicine in Chillicothe, Illinois. Graduated from University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb) in 2007, 19 years ago. Practices with Heartland Community Health Clinic, a 51-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Illinois.

Years since qualifying
19
Trained at
University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb)
Licensed in
IL
In the registry since
2007
Specialties on file
2
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

311 N 4th St
Chillicothe, IL 61523-2059
Phone: (309) 274-4336
Fax: (309) 274-3120
Show map & directions

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

Additional practice locations (1)

  • 530 Ne Glen Oak Ave, Peoria, IL 61603-3133 — (309) 655-3000

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 036125692 (IL)
Pediatrics Physician Taxonomy 208000000X · Licence 036125692 (IL)

Record details

NPI number1104023092
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 2, 2007
Last updated in NPPESFebruary 4, 2025
Certification dateFebruary 4, 2025
Mailing address311 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 schoolUNIVERSITY OF ILLINOIS COLLEGE OF MED (CHI/PEOR/ROCK/CHM-URB)
Graduated 2007 (19 years in practice)
Group practice Heartland Community Health Clinic — 51 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare