Ronald Walter Nelson Jr.

  • Marrero, LA
  • Emergency medicine physician
NPI1134507197PAC ID6800146507
Medicare services, 2024
120
Medicare patients, 2024
116
Part D claims, 2024
185
Hospital affiliations
2
Industry payments
$19
Practice address
1101 Medical Center Blvd, Marrero, LA 70072
Practice phone
Call (504) 347-5511
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

West Jefferson Medical Center

Hospital · Marrero, Louisiana

See all 9 affiliations

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Ronald Walter Nelson Jr. is an emergency medicine physician in Marrero, Louisiana

Ronald Nelson practices at West Jefferson Medical Center in Marrero, Louisiana, part of LCMC Health.

Ronald Nelson's NPI, 1134507197, was assigned on May 11, 2015. Ronald Nelson graduated from Tulane University School of Medicine in 2015. Ronald Nelson holds Louisiana license 308259.

NPI and contact details
Medicare PAC ID
6800146507
NPI enumeration date
May 11, 2015
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(504) 347-5511
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
37
Medical school graduation
2015

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Ronald Walter Nelson Jr. practices at West Jefferson Medical Center in Marrero, Louisiana

Ronald Nelson's primary practice is West Jefferson Medical Center, at 1101 Medical Center Blvd, Marrero, LA 70072 in Jefferson Parish. The practice phone is (504) 347-5511.

Source: Dmand AI Affiliation Data

Ronald Walter Nelson Jr. is affiliated with 3 sites of care and 6 medical groups

Ronald Nelson's primary practice is West Jefferson Medical Center in Marrero, Louisiana, part of LCMC Health. Ronald Nelson is also affiliated with Ochsner Medical Center - Kenner. The medical group on file is Ochsner Health. Dmand AI also links Ronald Nelson to 5 more medical groups and 1 clinical lab, each named with a free account.

See all 9 affiliations for Ronald Nelson

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Ronald Walter Nelson Jr.'s practice

Dmand AI tracks the electronic health record (EHR) system at each site where Ronald Nelson practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
West Jefferson Medical CenterAvailable with a free account
+2 more sites and 5 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Ronald Walter Nelson Jr. is one of 809 emergency medicine physicians in Louisiana

Emergency medicine is Ronald Nelson's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Ronald Nelson is licensed in Louisiana.

Specialties and state licenses

  • Emergency medicine, LouisianaPrimaryLicense 308259 · taxonomy 207P00000X

Emergency medicine physicians near Ronald Nelson

Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Ronald Walter Nelson Jr. billed Medicare for 120 services in 2024

CMS data shows 120 Medicare services from Ronald Nelson across 3 procedure codes in 2024, for 116 Medicare patients. Medicare paid $14,760 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024120
Medicare patients116
Paid by Medicare$14,760
Procedure codes3

Ronald Nelson's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1382024: 12013%

Ronald Nelson compared with the Louisiana median for emergency medicine physicians, 2024

  • Ronald Nelson
  • Louisiana median
Medicare services
120vs 19438% below
Medicare patients
116vs 17835% below
Part D claims
50vs 8239% below

Medians across 793 emergency medicine physicians in Louisiana with Dmand AI profiles that report each measure.

Ronald Nelson's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Ronald Walter Nelson Jr. treated 116 Medicare patients in 2024, average age 72

CMS counts 116 Medicare patients who saw Ronald Nelson in 2024. The largest group is 65 to 74, with 36 patients. 75% of them have high blood pressure, and 73% have high cholesterol. 43% are also on Medicaid. Their average risk score is 2.20, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Ronald Nelson's median patient age at 60, with 56% women.

Medicare patients, 2024116
Average age72
Average risk score2.20
Also on Medicaid43%

Ronald Nelson's Medicare patients by age, 2024

Ronald Nelson's Medicare patients by sex, 2024

  • Women6859%
  • Men4841%

Chronic conditions among Ronald Nelson's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol73%
  3. Arthritis53%
  4. Mood disorders50%
  5. Depression45%
  6. Diabetes42%
  7. Anxiety40%
  8. Chronic kidney disease40%

Share of Medicare patients with each condition. A patient can have several.

Ronald Nelson's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 60

Patient panel by sex, all payers

  • Women56%
  • Men44%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Ronald Walter Nelson Jr. wrote 185 Medicare Part D claims in 2024

In 2024, Ronald Nelson wrote 185 Medicare Part D claims for 129 patients. 94% of them were for generic drugs. CMS names the drug for 50 of them, across 4 drugs with 11 or more claims each, at $204 in total drug cost. In 2023, CMS named 39 claims across 3 drugs.

Part D claims, 2024185
Drugs named by CMS4
Total drug cost$204
Part D patients129

Ronald Nelson's Part D claims by kind of drug, 2024

  • Generic174 claims94%
  • Brand-name11 claims6%

Ronald Nelson's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Ronald Nelson's Part D claims, 2024

  • Antibiotics31%57 of 185 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 392024: 5028%

Drugs named by CMS: 4 in 2024, 3 in 2023.

See all prescribing by Ronald Nelson

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

How Ronald Walter Nelson Jr. takes part in Medicare

Ronald Nelson accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Ronald Walter Nelson Jr. received $19 in industry payments in 2021

CMS Open Payments shows 1 general payment to Ronald Nelson from 1 drug or device company in 2021. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $19.

Companies that paid Ronald Nelson the most, 2021 to 2021

Share is of all general payments to this clinician.

See all payments to Ronald Nelson

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Ronald Walter Nelson Jr. graduated from Tulane University School of Medicine

Ronald Nelson graduated from Tulane University School of Medicine in 2015.

  1. Medical schoolTulane University School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Ronald Walter Nelson Jr.'s profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Ronald Walter Nelson Jr.

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Ronald Walter Nelson Jr.'s NPI number?

Ronald Walter Nelson Jr.'s NPI number is 1134507197. It was assigned on May 11, 2015, and it is active in the NPI Registry.

What does Ronald Walter Nelson Jr. specialize in?

Ronald Walter Nelson Jr. is an emergency medicine physician in Marrero, Louisiana. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).

Where does Ronald Walter Nelson Jr. practice?

Ronald Nelson practices at 1101 Medical Center Blvd, Marrero, LA 70072. Ronald Nelson's primary practice is West Jefferson Medical Center in Marrero, Louisiana, part of LCMC Health. Dmand AI also links Ronald Nelson to 5 medical groups and 1 clinical lab.

What is Ronald Walter Nelson Jr.'s office phone number?

The practice phone on file for Ronald Nelson is (504) 347-5511.

What is Ronald Walter Nelson Jr.'s medical license number?

Ronald Nelson holds Louisiana license 308259.

Which hospitals is Ronald Walter Nelson Jr. affiliated with?

Ronald Nelson practices at West Jefferson Medical Center in Marrero, Louisiana. Ronald Nelson is also affiliated with Ochsner Medical Center - Kenner.

What medical group is Ronald Walter Nelson Jr. part of?

Ronald Nelson is linked to Ochsner Health. Dmand AI links Ronald Nelson to 5 more medical groups.

Does Ronald Walter Nelson Jr. accept Medicare?

Yes. CMS data shows Ronald Nelson billed Medicare for 120 services in 2024, and Ronald Nelson accepts Medicare assignment.

How many Medicare patients does Ronald Walter Nelson Jr. see?

CMS counts 116 Medicare patients who saw Ronald Nelson in 2024, with an average age of 72.

What services does Ronald Walter Nelson Jr. bill to Medicare?

In 2024, Ronald Nelson's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and critical care (99291).

Show 4 more questionsShow fewer questions

Where did Ronald Walter Nelson Jr. go to medical school?

Ronald Nelson graduated from Tulane University School of Medicine in 2015.

What drugs does Ronald Walter Nelson Jr. prescribe most?

In 2024 Medicare Part D data, Ronald Nelson's most prescribed drugs by claims were Prednisone, Azithromycin and Cephalexin.

Has Ronald Walter Nelson Jr. received payments from drug or device companies?

CMS Open Payments shows $19 in general payments to Ronald Nelson from 1 company from 2021 to 2021. The largest total came from Janssen Pharmaceuticals, Inc.

How long has Ronald Walter Nelson Jr. been practicing?

Ronald Nelson graduated from medical school in 2015, 11 years ago.

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