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Internal Medicine

William G. Plunkett, MD

Works at hospitals in Hammond, LA · Louisiana

Summary

Dr. William G. Plunkett, MD is an internal medicine doctor at 15813 Paul Vega MD Dr, Suite 300, Hammond, LA 70403. Phone: (985) 230-7675. Accepts Medicare assignment. In 2024, William G. Plunkett had 182 Original Medicare patients and 836 services. NPI 1871553016. 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: 15813 Paul Vega MD Dr, Suite 300, Hammond, LA 70403 · Directions
  • Phone: (985) 230‑7675
  • Medicare: Accepts Medicare assignment
  • Hospital: North Oaks Medical Center
  • Group practice: North Oaks Medical Center LLC
  • Medical school: Eastern Virginia Medical School · graduated 1983 (43 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about William G. Plunkett, 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 William G. Plunkett accept Medicare assignment?
Yes. Medicare's clinician data says William G. Plunkett 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 William G. Plunkett see?
In 2024, CMS data shows 182 Original Medicare patients and 836 services for William G. Plunkett. This counts Original Medicare only and measures volume, not quality.
What is William G. Plunkett's NPI number?
1871553016. 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 William G. Plunkett, 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 patients182
Services billed to Medicare836
Different services or procedures14
Participating Medicare providerYes
Average age of these patients70

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)381 services
  2. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)328 services
  3. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)47 services
  4. Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and (G0180)25 services
  5. Physician or allowed practitioner re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians a (G0179)20 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 pressure75%
  • High cholesterol75%
  • Arthritis58%
  • Diabetes46%
  • Anxiety42%
  • Ischemic heart disease34%

Hospitals where William G. Plunkett works

Medicare's Facility Affiliation Data lists William G. Plunkett 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 William G. Plunkett is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists William G. Plunkett as a member of this group (CMS data updated October 2, 2026).

  • North Oaks Medical Center LLC320 clinicians in the group

Specialties

Find other Internal Medicine doctors in Louisiana →

Other internal medicine doctors in Hammond

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

All internal medicine doctors in Hammond →

Other clinicians in North Oaks Medical Center LLC

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

Clinician information

CredentialMD
Medical schoolEastern Virginia Medical School
Graduation year1983 (43 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1871553016
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