Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Micaela Erin O'Neil-Callahan, MD

Individual provider Obstetrics & Gynecology Physician · NPI 1568783850

Micaela Erin O'Neil-Callahan, MD is an Obstetrics/Gynecology in Saint Louis, Missouri. Graduated from University of Wisconsin School of Medicine in 2010, 16 years ago. Practices with Mercy Hospitals East Communities, a 91-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
16
Trained at
University of Wisconsin School of Medicine
Licensed in
MO
In the registry since
2010
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

615 S New Ballas Rd
Saint Louis, MO 63141-8221
Phone: (314) 251-7498
Fax: (314) 251-3921
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1717 Biddle St, Saint Louis, MO 63106-3454 — (314) 898-1700

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence 2010019226 (MO)

Record details

NPI number1568783850
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 21, 2010
Last updated in NPPESDecember 26, 2024
Certification dateDecember 26, 2024

Medicare enrollment

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

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolUNIVERSITY OF WISCONSIN SCHOOL OF MEDICINE
Graduated 2010 (16 years in practice)
Group practice Mercy Hospitals East Communities — 91 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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