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

Dr. Michael L Williams, DO

Individual provider Family Medicine Physician · NPI 1851353247

Dr. Michael L Williams, DO is a Family Medicine Physician in O Fallon, Missouri. Practices as a sole proprietor and works from 3 locations. Licensed in California and Illinois.

Licensed in
CA, IL
In the registry since
2006
Specialties on file
2
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.

See every abbreviation used in this directory →

Practice location Partly verified

Some contact details are missing from the federal record.

Ultra Wellness Medical Llc 3026 Winghaven Blvd
O Fallon, MO 63368
Phone: (636) 333-9820
Fax: (636) 228-0039
Show map & directions

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

Additional practice locations (2)

  • 7421 Highway N, Dardenne Prairie, MO 63368-7014 — (636) 561-5699
  • 400 Medical Plz Ste 200, Lake St Louis, MO 63367-1417 — (636) 625-2662

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 2005036219 (IL)
Family Medicine Physician Taxonomy 207Q00000X · Licence 20A18065 (CA)

Record details

NPI number1851353247
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedApril 3, 2006
Last updated in NPPESSeptember 23, 2022
Certification dateSeptember 20, 2022
Mailing address3026 Winghaven Blvd., O'Fallon, MO 63368

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