Doctor profile · Federal record

Dr. Micaela O'Neil-Callahan, M.D.

Obstetrics & Gynecology Physician · Saint Louis, MO

  • NPI 1568783850
  • 16 yrs on file
  • Female
  • Solo practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
615 S New Ballas RD
Saint Louis, MO 631418221
(314) 251-7498
fax (314) 251-3921
Additional location
1717 Biddle St
Saint Louis, MO 631063454
(314) 898-1700
fax (314) 814-8542

Credentials & registration

NPPES · NUCC
NPI registered
June 2010 — 16 yrs on file
Profile last updated
December 26, 2024
Specialty taxonomy
207V00000X — NUCC code
State license (1)
Missouri #2010019226

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1568783850. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$20
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Organon Llc 1 $20.13

By nature of payment

Food and Beverage
$20

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
64
Patients
11
Total drug cost
$956
Drug Type Claims Patients Total cost
Fluconazole Generic 20 11 $92
Valacyclovir (Valacyclovir Hcl) Brand 16 0 $430
Amlodipine Besylate Generic 14 0 $77
Metronidazole Generic 14 0 $356

Frequently asked questions

Auto-generated from federal data
What is Dr. Micaela O'Neil-Callahan's medical specialty?
Dr. Micaela O'Neil-Callahan practices Obstetrics & Gynecology Physician in Saint Louis, MO.
Where does Dr. Micaela O'Neil-Callahan practice?
Dr. Micaela O'Neil-Callahan practices at 615 S New Ballas RD, Saint Louis, MO 631418221. Office phone: 3142517498.
What is Dr. Micaela O'Neil-Callahan's NPI?
Dr. Micaela O'Neil-Callahan's National Provider Identifier (NPI) is 1568783850, issued by NPPES.