Independent US Healthcare Provider Directory & Public Medical Database Patient Guides
Medical Specialty Listing

Emergency Medicine Providers in Marrero, LA

Browse 22 Emergency Medicine providers listed in NPPES with a practice address in Marrero, Louisiana.

22 Healthcare Providers

How Marrero compares with the U.S.

Marrero has 68 clinicians in Emergency Medicine per 100,000 residents, 3.2 times the U.S. rate of 21.

That is 22 active clinicians in Emergency Medicine with a practice address in Marrero, for a population of 32,540.

The Louisiana rate is 22 per 100,000 residents.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places. Cities with hospitals or large medical centers often list more specialists than the number of residents alone would suggest, because patients also come from nearby areas.

Too few clinicians in Emergency Medicine in Marrero are listed in the CMS Medicare file to report Medicare assignment or telehealth shares.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Emergency Medicine Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Emergency Medicine practitioners in Marrero, LA

Source: CMS PECOS
PECOS Enrolled Specialists 16 In Marrero, LA
Part B Lab & Imaging Eligible 15 Diagnostic Referrals
DME Ordering Eligible 17 Durable Medical Equipment
Home Health Agency Referrals 15 HHA Ordering Eligible
Showing 1โ€“20 of 22 providers
With recent CMS data first, then Aโ€“Z

Dr. James W Callaghan , MD

Emergency Medicine

Active NPI Status
1101 Medical Center Blvd, Emergency Department, Marrero, LA 700723147
Phone: 5043491533
NPI Identifier 1043206840
View Full Profile

Dr. Brian Dehart , MD

Emergency Medicine

Active NPI Status
1101 Medical Center Blvd, Emergency Department, Marrero, LA 700723147
Phone: 5043491533
NPI Identifier 1730175530
View Full Profile

Ruth Ellen Foster

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
4837 Lapalco Blvd, Marrero, LA 700724325
Phone: 5047033269
NPI Identifier 1851535389
View Full Profile

Dr. William Casey Frew , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
1101 Medical Center Blvd., Er, Marrero, LA 70072
Phone: 5043491533
NPI Identifier 1740556000
View Full Profile

Dr. Robert Gruner , MD

Emergency Medicine

Active NPI Status
1101 Medical Center Blvd, Emergency Department, Marrero, LA 700723147
Phone: 5043491533
NPI Identifier 1528054236
View Full Profile

Dr. Michael Iacono , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
1101 Medical Center Blvd, Marrero, LA 700723147
Phone: 5043475511
NPI Identifier 1467879981
View Full Profile

Dr. Michael Edward Isabelle , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
4837 Lapalco Blvd, Marrero, LA 700724325
Phone: 5047033260
NPI Identifier 1679593651
View Full Profile

Dr. John Joseph Lamartina , MD

Emergency Medicine

Active NPI Status
5216 Lapalco Blvd, Marrero, LA 70072
Phone: 5043484357
NPI Identifier 1114028891
View Full Profile

Dr. Megan Larose Landry , MD

Emergency Medicine

Active NPI Status
1101 Medical Center Blvd, Marrero, LA 700723147
Phone: 5043491297
NPI Identifier 1962669481
View Full Profile

Dr. Andrew P Mayer , MD

Emergency Medicine

Active NPI Status
1101 Medical Center Blvd, Emergency Department, Marrero, LA 700723147
Phone: 5043491533
NPI Identifier 1609862416
View Full Profile

Dr. Shaden Murad , MD

Emergency Medicine

Active NPI Status
1101 Medical Center Blvd, Marrero, LA 70072
Phone: 5043475511
NPI Identifier 1851785778
View Full Profile

Dr. Ky Vu Nguyen , MD

Emergency Medicine

Active NPI Status
4410 4th St, Marrero, LA 700722136
Phone: 5042012290
NPI Identifier 1457675472
View Full Profile

Dr. Mark R. Rice , MD

Emergency Medicine

Active NPI Status
1101 Medical Ctr. Blvd., Er, Marrero, LA 70072
Phone: 5042491533
NPI Identifier 1154502029
View Full Profile

Dr. Elizabeth Cochrane Ritz , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
1101 Medical Center Blvd, Marrero, LA 700723147
Phone: 5043491533
NPI Identifier 1093918187
View Full Profile

Dr. Geoffrey Smith , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
1101 Medical Center Blvd, Emergency Department, Marrero, LA 700723147
Phone: 5043491533
NPI Identifier 1124014832
View Full Profile

Dr. Harry S Vorhaben , MD

Emergency Medicine

Active NPI Status
1101 Medical Center Blvd, Emergency Department, Marrero, LA 700723147
Phone: 5043491533
NPI Identifier 1619963436
View Full Profile

Dr. Darren E Whitcomb , MD

Emergency Medicine

Active NPI Status
1101 Medical Center Blvd, Emergency Department, Marrero, LA 700723147
Phone: 5043491533
NPI Identifier 1609862424
View Full Profile

Dr. Scott Michael Zainey , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
1101 Medical Center Blvd., Emergency Department, Marrero, LA 70072
Phone: 5043491533
NPI Identifier 1073770582
View Full Profile

Dr. Robert J Chugden , MD

Emergency Medicine

Active NPI Status
1101 Medical Center Blvd, Emergency Department, Marrero, LA 700723147
Phone: 5043491533
NPI Identifier 1659367357
View Full Profile

Dr. Damon M Dietrich , MD

Emergency Medicine

Active NPI Status
1101 Medical Center Blvd, Emergency Department, Marrero, LA 700723147
Phone: 5043491533
NPI Identifier 1801882600
View Full Profile

Frequently Asked Questions about Emergency Medicine in Marrero

How do I check a Emergency Medicine practitioner's license?

Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the Louisiana licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.

Why is a practitioner missing from this list?

This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.