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

Dr. Eileen Anne O'Halloran, MD

Individual provider Surgery Physician · NPI 1447549571

Dr. Eileen Anne O'Halloran, MD is a General Surgery in Saint Louis, Missouri. Graduated from Loyola University of Chicago, Stritch School of Medicine in 2011, 15 years ago. Practices with Mercy Clinic Surgical Specialists LLC, a 180-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Illinois and Missouri.

Years since qualifying
15
Trained at
Loyola University of Chicago, Stritch School of Medicine
Licensed in
IL, MO
In the registry since
2011
Specialties on file
2
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

607 S New Ballas Rd Ste 2350
Saint Louis, MO 63141-0001
Phone: (314) 251-1340
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 10050 Kennerly Rd Ste 2500, Saint Louis, MO 63128-2195 — (314) 525-4440

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence 2024028245 (MO)
Surgery Physician Taxonomy 208600000X · Licence 036.134096 (IL)

Record details

NPI number1447549571
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 29, 2011
Last updated in NPPESAugust 29, 2024
Certification dateAugust 29, 2024

Medicare enrollment

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

Medicare specialtyGENERAL SURGERY
Medical schoolLOYOLA UNIVERSITY OF CHICAGO, STRITCH SCHOOL OF MEDICINE
Graduated 2011 (15 years in practice)
Group practice Mercy Clinic Surgical Specialists Llc — 180 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations4 on file with Medicare

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