Mary C. Gaston, MD

Medicare activity in 2024

Official CMS public-use data for Mary C. Gaston, 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.

Most frequent services

1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)324 services
2. Hospital discharge day management, more than 30 minutes (99239)107 services
3. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)46 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)14 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%
• Arthritis66%
• Chronic kidney disease55%
• Ischemic heart disease51%
• Heart failure51%

Hospitals where Mary C. Gaston works

Medicare's Facility Affiliation Data lists Mary C. Gaston 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.

• East Jefferson General HospitalMetairie, LA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 190176

Practice locations

Addresses where Mary C. Gaston is enrolled with Medicare (CMS data updated October 2, 2026).

• 4200 Houma Blvd, Fl 6Metairie, LA 70006 (504) 503‑4331

Group practices

Medicare enrollment lists Mary C. Gaston as a member of this group (CMS data updated October 2, 2026).

• East Jefferson Physicians Group LLC214 clinicians in the group

Specialties

• Hospitalistprimary
• Internal Medicinealso

Find other Hospitalist doctors in Louisiana →

Other hospitalists in Metairie

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

• Fadi Hawawini, DO
• Philip J. Putnam, MD
• Britta N. Haydel, MD
• William Gilbert Jr., MD
• Varun S. Choudry, MD

All hospitalists in Metairie →

Other clinicians in East Jefferson Physicians Group LLC

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

• Derek J. Naccari, MD
• Samantha M. Avera, NP
• Lily A. Hanna, MD
• Andrew T. Melcher, MD
• Frank J. Arena, MD
• Allison P. Smith, NP

Clinician information

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