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

William A Chadwick, MD

Individual provider Obstetrics & Gynecology Physician · NPI 1568454775

William A Chadwick, MD is an Obstetrics/Gynecology in Belleville, Illinois. Qualified in 1985, 41 years ago. Practices with Fairview Heights Medical Group SC, a 448-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
41
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

4600 Memorial Dr Ste 240
Belleville, IL 62226-5363
Phone: (618) 234-2390
Fax: (618) 234-9936
Show map & directions

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

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence 036-082912 (IL)

Record details

NPI number1568454775
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 16, 2005
Last updated in NPPESFebruary 12, 2021
Certification dateFebruary 12, 2021
Mailing address4600 Memorial Dr, Suite 400, Belleville, IL 62226-5366

Medicare enrollment

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

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolOTHER
Graduated 1985 (41 years in practice)
Group practice Fairview Heights Medical Group Sc — 448 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Other providers in Belleville