1. Home
  2. Directory
  3. Missouri
  4. Saint Louis
  5. Anesthesiology
  6. NPI Profile

DR. MARIA LOUISE O'NEILL M.D.
NPI 1669435434
Anesthesiology in Saint Louis, MO

Active since April 11, 2006
615 S NEW BALLAS RD, SAINT LOUIS, MO 63141(314) 469-6800(314) 469-6803 Get Directions Write a Review

NPPES record last updated: November 20, 2008. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Maria Louise O'neill M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MARIA LOUISE O'NEILL M.D. (NPI 1669435434) is an individual anesthesiology provider in Saint Louis, Missouri, licensed in Missouri (R3F73) and active in the NPI registry since April 2006.

NPPES Registry Identity

NPI1669435434
Entity TypeIndividualFemale
Primary Taxonomy207L00000X
Provider Legal NameDR. MARIA LOUISE O'NEILLCredential: M.D.
Location Address615 S NEW BALLAS RDSaint Louis, MO 63141-8221
Mailing Address1066 Executive Parkway Dr, Suite 205Saint Louis, MO 63141-6340 · (314) 469-6800 · Fax (314) 469-6803
Phone(314) 469-6800
Fax(314) 469-6803
Sole ProprietorNo
Enumeration DateApril 11, 2006
Last NPPES UpdateNovember 20, 2008
✔ NPI 1669435434 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in MO · R3F73
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
615 S NEW BALLAS RD, Saint Louis, MO 63141
Open in Google Maps ↗

Other Identifiers 4

Other431170100Tax Id Number
Other1499MO · Bcbs Id
Medicare ID-Type Unspecified91488MO
Medicaid205796709MO

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MRS. PATRICIA ANN RICE APN
Nurse Practitioner (Family)
615 S NEW BALLAS RD
SAINT LOUIS, MO 63141
St. Louis County (314) 251-6339
MARY BETH WALKER FNP
Nurse Practitioner (Family)
615 S NEW BALLAS RD
SAINT LOUIS, MO 63141
St. Louis County (314) 251-6000
LOVEPREET SINGH RANDHAWA MD
Internal Medicine
615 S NEW BALLAS RD
SAINT LOUIS, MO 63141
St. Louis County (314) 251-6339
DR. CONNOR ROBERT REIS DO
Internal Medicine
615 S NEW BALLAS RD
SAINT LOUIS, MO 63141
St. Louis County (314) 251-6930
MR. SHEBY THOMAS AA-S
Anesthesiologist Assistant
615 S NEW BALLAS RD, DEPT OF ANESTHESIOLOGY
SAINT LOUIS, MO 63141
St. Louis County (636) 386-9224
JOSE L OLIVER SEGARRA
Dentist (General Practice)
615 S NEW BALLAS RD
SAINT LOUIS, MO 63141
St. Louis County (314) 251-6382
CAREN BIRKENKAMP PMHNP-BC
Nurse Practitioner (Psychiatric/Mental Health)
615 S NEW BALLAS RD
SAINT LOUIS, MO 63141
St. Louis County (314) 251-6000
ANAS M HASIC MD
Internal Medicine
615 S NEW BALLAS RD
SAINT LOUIS, MO 63141
St. Louis County (314) 509-5305

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Maria O'neill's NPI number?

The NPI number for Maria O'neill is 1669435434. It was assigned to this individual provider in the NPPES registry on April 11, 2006.

Where is Maria O'neill located?

Maria O'neill practices at 615 S New Ballas Rd, Saint Louis, MO 63141. The listed phone number is (314) 469-6800.

What is Maria O'neill's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

When was this NPI record last updated?

The NPPES record for Maria O'neill was last updated on November 20, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.