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

Regina Y Chiu, MD

Individual provider Cardiovascular Disease Physician · NPI 1043272693

Regina Y Chiu, MD is a Cardiovascular Disease (Cardiology) in O Fallon, Illinois. Graduated from Saint Louis University School of Medicine in 1999, 27 years ago. Practices with Prairie Cardiovascular Consultants Ltd, a 94-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
27
Trained at
Saint Louis University School of Medicine
Licensed in
IL
In the registry since
2006
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

Three Saint Elizabeth Blvd Ste 2800
O Fallon, IL 62269-1282
Phone: (618) 233-6044
Fax: (833) 973-4218
Show map & directions

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

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence 036118748 (IL)

Record details

NPI number1043272693
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 6, 2006
Last updated in NPPESDecember 20, 2021
Certification dateDecember 20, 2021

Medicare enrollment

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

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Also practisesINTERNAL MEDICINE
Medical schoolSAINT LOUIS UNIVERSITY SCHOOL OF MEDICINE
Graduated 1999 (27 years in practice)
Group practice Prairie Cardiovascular Consultants Ltd — 94 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations12 on file with Medicare

Other providers in O Fallon