Alexandra Hallagan, MD
Alexandra Hallagan, MD is an Emergency Medicine in Saint Louis, Missouri. Graduated from Ohio State University College of Medicine in 2021, 5 years ago. Practices with Mercy Hospital South, a 42-clinician group and accepts Medicare assignment. Licensed in Missouri.
- Years since qualifying
- 5
- Trained at
- Ohio State University College of Medicine
- Licensed in
- MO
- In the registry since
- 2021
What do these letters mean?
- MD — Doctor of Medicine
- A physician who completed allopathic medical school.
Practice location Address checks out
10010 Kennerly RdSaint Louis, MO 63128-2106
Phone: (314) 525-1906
Fax: (314) 525-4148
Show map & directions
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Pin is approximate — placed at the ZIP-code centre, not the exact door.
Specialties & licences
| Emergency Medicine Physician (primary) | Taxonomy 207P00000X · Licence 2025028073 (MO) |
|---|
Record details
| NPI number | 1669053898 |
|---|---|
| Entity type | Individual (Type 1) |
| Gender | Female |
| Credentials | MD |
| Sole proprietor | No |
| NPI enumerated | April 19, 2021 |
| Last updated in NPPES | October 31, 2025 |
| Certification date | October 31, 2025 |
Medicare enrollment
| Medicare specialty | EMERGENCY MEDICINE |
|---|---|
| Medical school | OHIO STATE UNIVERSITY COLLEGE OF MEDICINE |
| Graduated | 2021 (5 years in practice) |
| Group practice | Mercy Hospital South — 42 clinicians |
| Accepts Medicare assignment | Yes — accepts the Medicare-approved amount |
Other providers in Saint Louis
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Dr. Zachary T Hafez, MD
400 S Kingshighway Blvd Dept Emergency Med, Saint Louis, MO 63110-1014 · (314) 362-9123
-
Dr. Lindsey Megan Hagberg, MD
1 Barnes Jewish Hospital Plz Dept Internal Medicine, Saint Louis, MO 63110-1003 · (314) 362-7388
-
Dr. Mehrdad Haghighat-Jou, DO
11123 S Towne Sq Ste E, Saint Louis, MO 63123-7816 · (314) 487-4537
-
Dr. Samuel Hall, MD
1 Barnes Jewish Hospital Plz Dept Emergency Med, Saint Louis, MO 63110-1003 · (314) 362-9123
-
Dr. Daniel Han, MD
12855 N 40 Dr, Saint Louis, MO 63141-8622 · (314) 432-4415
-
Elizabeth Ann Harmon, MD
615 S New Ballas Rd, Saint Louis, MO 63141-8221 · (314) 251-6090
-
Dr. Jordan Harp, MD
10010 Kennerly Rd, Saint Louis, MO 63128-2106 · (314) 525-1906
-
Theodore Harper III, MD
1201 S Grand Blvd, Saint Louis, MO 63104-1016 · (314) 617-2000