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Internal Medicine

James M. Rooney Jr., MD

Works at hospitals in Metairie, LA · Louisiana

Summary

Dr. James M. Rooney Jr., MD is an internal medicine doctor at 3939 Houma Blvd, Suite 228, Metairie, LA 70006. Phone: (504) 779-5678. Accepts Medicare assignment. In 2024, James M. Rooney Jr. had 212 Original Medicare patients and 583 services. NPI 1588638464. 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: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 3939 Houma Blvd, Suite 228, Metairie, LA 70006 · Directions
  • Phone: (504) 779‑5678
  • Medicare: Accepts Medicare assignment
  • Hospital: East Jefferson General Hospital
  • Medical school: Louisiana State University School Of Medicine In New Orleans · graduated 1995 (31 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about James M. Rooney Jr., 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 James M. Rooney Jr. accept Medicare assignment?
Yes. Medicare's clinician data says James M. Rooney Jr. 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 James M. Rooney Jr. see?
In 2024, CMS data shows 212 Original Medicare patients and 583 services for James M. Rooney Jr.. This counts Original Medicare only and measures volume, not quality.
What is James M. Rooney Jr.'s NPI number?
1588638464. 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 James M. Rooney Jr., 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 patients212
Services billed to Medicare583
Different services or procedures15
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)189 services
  2. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)143 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)41 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure73%
  • High cholesterol67%
  • Arthritis44%
  • Anxiety34%
  • Ischemic heart disease28%
  • Diabetes27%

Hospitals where James M. Rooney Jr. works

Medicare's Facility Affiliation Data lists James M. Rooney Jr. 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 James M. Rooney Jr. is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other Internal Medicine doctors in Louisiana →

Other internal medicine doctors in Metairie

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

All internal medicine doctors in Metairie →

Clinician information

CredentialMD
Medical schoolLouisiana State University School Of Medicine In New Orleans
Graduation year1995 (31 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1588638464
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