Individual provider · Type 1 NPI

Alexa Jo Duling Williams, MD

Obstetrics & Gynecology Physician · O Fallon, MO

NPI number 1972033652 Active

Practice location

1101 Highway K
O Fallon, MO 63366-8431

Call (636) 379-6363 Map

Mailing address

PO Box 955534
St. Louis, MO 63195-5534

Other practice locations

  • 615 S New Ballas Rd, St. Louis, MO 63141-8221 · (314) 251-6062
  • 12700 Southfork Rd Ste 230, St. Louis, MO 63128-3276 · (314) 849-3711

Specialties and licenses

TaxonomyCodeLicense
Obstetrics & Gynecology Physician Primary 207V00000X2021013439 (MO)
Obstetrics & Gynecology Physician 207V00000X2017019537 (MO)

Obstetrics & Gynecology Physician: An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.

36 other providers at this address

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About NPI 1972033652

Alexa Jo Duling Williams, MD's National Provider Identifier is 1972033652, issued on Jun 15, 2017. The primary taxonomy on file is Obstetrics & Gynecology Physician (207V00000X), and the practice location is in O Fallon, MO. The record was last updated on Nov 10, 2025.