Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

William Alden, MD

Works at hospitals in Metairie, LA · Covington, LA · Louisiana

Summary

William Alden, MD (Internal Medicine) is listed by Medicare at 2 hospitals in Metairie, LA and Covington, LA. NPI 1427036656. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about William Alden, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
32Years since medical school (graduated 1994)
MaleGender (as listed)
East Jefferson Physicians Group LLCGroup practice

Quick answers

Which hospitals does William Alden work at?
Medicare's official clinician data lists William Alden at 2 hospitals: East Jefferson General Hospital and St Tammany Parish Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does William Alden see patients?
Medicare's clinician data lists 2 practice locations, including Covington, LA. Call before your visit to confirm the address.
What is William Alden's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does William Alden accept Medicare assignment?
Yes. Medicare's clinician data says William Alden accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for William Alden?
(985) 892-6858, as listed in official Medicare / NPI Registry data.
What is William Alden's NPI number?
1427036656. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where William Alden works

Medicare's Facility Affiliation Data lists William Alden at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where William Alden is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists William Alden as a member of this group (CMS data updated 2026-10-02).

  • East Jefferson Physicians Group LLC214 clinicians in the group

Specialties

Find other Internal Medicine doctors in Louisiana →

Other internal medicine doctors in Covington

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

All internal medicine doctors in Covington →

Clinician information

CredentialMD
Graduation year1994
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1427036656
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 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians