Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Madison Leigh Fallis, DO

Individual provider Military Health Care Provider · NPI 1831979491

Madison Leigh Fallis, DO is a Military Health Care Provider in O Fallon, Illinois. Registered with an NPI since 2023.

In the registry since
2023
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

3 Saint Elizabeth Blvd Ste 4000
O Fallon, IL 62269-1284
Phone: (618) 256-9355
Fax: (618) 206-2332
Show map & directions

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

Specialties & licences

Military Health Care Provider (primary) Taxonomy 171000000X

Record details

NPI number1831979491
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedOctober 2, 2023
Last updated in NPPESSeptember 10, 2026
Certification dateSeptember 10, 2026

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