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Family Practice

Douglas T. Mehaffie, MD

Sees patients in Gretna, LA · New Orleans, LA · Louisiana

Summary

Dr. Douglas T. Mehaffie, MD is a family doctor at 148 Wall Blvd, Gretna, LA 70056. Phone: (504) 393-2273. Accepts Medicare assignment. In 2024, Douglas T. Mehaffie had 41 Original Medicare patients and 240 services. NPI 1851393078. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Family doctor (Medicare lists Family Practice)
  • Address: 148 Wall Blvd, Gretna, LA 70056 · Directions (1 more location)
  • Phone: (504) 393‑2273
  • Medicare: Accepts Medicare assignment
  • Group practice: Dr Douglas Mehaffie MD LLC
  • Medical school: Louisiana State University School Of Medicine In Shreveport · graduated 1999 (27 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Douglas T. Mehaffie, 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 Douglas T. Mehaffie accept Medicare assignment?
Yes. Medicare's clinician data says Douglas T. Mehaffie 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 Douglas T. Mehaffie see?
In 2024, CMS data shows 41 Original Medicare patients and 240 services for Douglas T. Mehaffie. This counts Original Medicare only and measures volume, not quality.
What is Douglas T. Mehaffie's NPI number?
1851393078. 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 Douglas T. Mehaffie, 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 patients41
Services billed to Medicare240
Different services or procedures30
Participating Medicare providerYes
Average age of these patients72

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)22 services
  2. Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen (87635)16 services
  3. Detection test by nucleic acid for multiple types influenza virus (87502)15 services
  4. Detection test by nucleic acid for respiratory syncytial virus, amplified probe technique (87634)15 services
  5. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)13 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 cholesterol75%
  • High blood pressure63%
  • Arthritis54%
  • Diabetes37%

Practice locations

Addresses where Douglas T. Mehaffie is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Douglas T. Mehaffie as a member of this group (CMS data updated October 2, 2026).

  • Dr Douglas Mehaffie MD LLC14 clinicians in the group

Specialties

Find other Family Practice doctors in Louisiana →

Other family doctors in Gretna

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

All family doctors in Gretna →

Other clinicians in Dr Douglas Mehaffie MD LLC

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

Clinician information

CredentialMD
Medical schoolLouisiana State University School Of Medicine In Shreveport
Graduation year1999 (27 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1851393078
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  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