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Obstetrics/Gynecology

Maggie J. Cahill, MD

Works at hospitals in Marrero, LA · Louisiana

Summary

Dr. Maggie J. Cahill, MD is an OB-GYN at 1101 Medical Ctr Blvd, Marrero, LA 70072. Phone: (504) 349-1656. Accepts Medicare assignment. In 2024, Maggie J. Cahill had 12 Original Medicare patients and 30 services. NPI 1548729718. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: OB-GYN (Medicare lists Obstetrics/Gynecology)
  • Address: 1101 Medical Ctr Blvd, Marrero, LA 70072 · Directions
  • Phone: (504) 349‑1656
  • Medicare: Accepts Medicare assignment
  • Hospital: West Jefferson Medical Center
  • Group practice: New Orleans Physician Services Inc
  • Medical school: Louisiana State University School Of Medicine In New Orleans · graduated 2023 (3 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Maggie J. Cahill, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Maggie J. Cahill accept Medicare assignment?
Yes. Medicare's clinician data says Maggie J. Cahill accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Maggie J. Cahill see?
In 2024, CMS data shows 12 Original Medicare patients and 30 services for Maggie J. Cahill. This counts Original Medicare only and measures volume, not quality.
What is Maggie J. Cahill's NPI number?
1548729718. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Maggie J. Cahill, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients12
Services billed to Medicare30
Different services or procedures6
Participating Medicare providerYes
Average age of these patients60

Hospitals where Maggie J. Cahill works

Medicare's Facility Affiliation Data lists Maggie J. Cahill at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Maggie J. Cahill is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Maggie J. Cahill as a member of this group (CMS data updated October 2, 2026).

  • New Orleans Physician Services Inc178 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in Louisiana →

Other OB-GYNs in Marrero

Clinicians with the same Medicare primary specialty in Marrero, LA — not a recommendation.

All OB-GYNs in Marrero →

Other clinicians in New Orleans Physician Services Inc

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolLouisiana State University School Of Medicine In New Orleans
Graduation year2023 (3 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1548729718
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians