Micaela O'Neil-CallahanM.D.
Obstetrics & Gynecology·Saint Louis, MO
Micaela O'Neil-Callahan, M.D. is an Obstetrics & Gynecology provider in Saint Louis, MO, as of July 2026.
- NPI1568783850
- Registered2010
- Class of2010
Case volumes, referral patterns, and payer mix live in DataLily AI Insights.
Education
Education on record as of August 2026.
Micaela O'Neil-Callahan at a glance
- Provider
- Micaela O'Neil-Callahan
- Credential
- M.D.
- Specialty
- Obstetrics & Gynecology
- Procedures
- Obstetrics & Gynecology CPT codes
- Location
- Saint Louis, MO
- Medical school
- University of Wisconsin School of Medicine
- Graduated
- 2010
- NPI registered
- 2010
- NPI
- 1568783850
- Snapshot
- July 2026
Identity, specialty, and affiliations change over time. This is not an endorsement, and not clinical, billing, or legal advice. Providers may request corrections at founders@datalilyai.com. Read the DataLily AI data methodology.
Questions
Where does Micaela O'Neil-Callahan practice?
Micaela O'Neil-Callahan, M.D. is based in Saint Louis, MO. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Micaela O'Neil-Callahan's NPI number?
Micaela O'Neil-Callahan's National Provider Identifier (NPI) is 1568783850, registered in 2010. Specialty on record: Obstetrics & Gynecology; credential M.D.
Where did Micaela O'Neil-Callahan go to medical school?
Micaela O'Neil-Callahan, M.D. attended University of Wisconsin School of Medicine, graduating in 2010.
How many Obstetrics & Gynecology providers in Missouri work at ambulatory surgery centers?
84 Obstetrics & Gynecology surgeons and proceduralists in Missouri are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, Micaela O'Neil-Callahan among them. The Missouri Obstetrics & Gynecology directory lists each one by city with credential, NPI, and center affiliations.
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