Dr. Derek Joseph Vonderhaar, MD
- Medicare services, 2024
- 327
- Medicare patients, 2024
- 140
- Part D claims, 2024
- 435
- Hospital affiliations
- 3
- Industry payments
- $1,836
- Practice address
- 1516 Jefferson Hwy, New Orleans, LA 70121
- Practice phone
- Call (504) 842-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Vonderhaar's professional email, personal email and mobile number
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Dr. Derek Joseph Vonderhaar is an emergency medicine physician in New Orleans, Louisiana
Dr. Vonderhaar practices at Ochsner Medical Center - New Orleans in New Orleans, Louisiana, part of Ochsner Health System.
Dr. Vonderhaar's NPI, 1245471218, was assigned on March 20, 2009. Dr. Vonderhaar graduated from Louisiana State University School of Medicine in New Orleans in 2009. Dr. Vonderhaar holds Louisiana license 204086.
- NPI
- 1245471218NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9234369448
- NPI enumeration date
- March 20, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (504) 842-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Derek Joseph Vonderhaar practices at Ochsner Medical Center - New Orleans in New Orleans, Louisiana
Dr. Vonderhaar's primary practice is Ochsner Medical Center - New Orleans, at 1516 Jefferson Hwy, New Orleans, LA 70121 in Jefferson Parish. The practice phone is (504) 842-3000.
- Ochsner Medical Center - New Orleans1516 Jefferson Hwy, New Orleans, LA 70121 · Jefferson ParishPhone(504) 842-3000
Source: Dmand AI Affiliation Data
Dr. Derek Joseph Vonderhaar is affiliated with 3 sites of care and 4 medical groups
Dr. Vonderhaar's primary practice is Ochsner Medical Center - New Orleans in New Orleans, Louisiana, part of Ochsner Health System. Dr. Vonderhaar is also affiliated with Ochsner Medical Center - Kenner. The medical group on file is Ochsner Health. Dmand AI also links Dr. Vonderhaar to 1 more hospital and 3 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Derek Joseph Vonderhaar's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Vonderhaar practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ochsner Medical Center - New Orleans | Available with a free account |
| +2 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Derek Joseph Vonderhaar is one of 809 emergency medicine physicians in Louisiana
Emergency medicine is Dr. Vonderhaar's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Vonderhaar is licensed in Louisiana.
Specialties and state licenses
- Emergency medicine, LouisianaPrimary
Emergency medicine physicians near Dr. Vonderhaar
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
Dr. Derek Joseph Vonderhaar billed Medicare for 327 services in 2024
CMS data shows 327 Medicare services from Dr. Vonderhaar across 11 procedure codes in 2024, for 140 Medicare patients. Medicare paid $32,048 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Vonderhaar's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1882024: 21012%
- Surgery
- 2023: 922024: 11727%
Dr. Vonderhaar compared with the Louisiana median for emergency medicine physicians, 2024
- Dr. Vonderhaar
- Louisiana median
- Medicare services
- 327vs 19469% above
- Medicare patients
- 140vs 17821% below
- Part D claims
- 332vs 824.0 times
Medians across 793 emergency medicine physicians in Louisiana with Dmand AI profiles that report each measure.
Dr. Vonderhaar'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Vonderhaar and other emergency medicine physicians in Louisiana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Derek Joseph Vonderhaar treated 140 Medicare patients in 2024, average age 72
CMS counts 140 Medicare patients who saw Dr. Vonderhaar in 2024. The largest group is 65 to 74, with 72 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 24% are also on Medicaid. Their average risk score is 2.90, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Vonderhaar's median patient age at 71, with 52% women.
Dr. Vonderhaar's Medicare patients by age, 2024
Dr. Vonderhaar's Medicare patients by sex, 2024
- Women7352%
- Men6748%
Chronic conditions among Dr. Vonderhaar's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease48%
- COPD44%
- Arthritis41%
- Chronic kidney disease39%
- Diabetes39%
- Heart failure39%
Share of Medicare patients with each condition. A patient can have several.
Dr. Vonderhaar's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women52%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Derek Joseph Vonderhaar wrote 435 Medicare Part D claims in 2024
In 2024, Dr. Vonderhaar wrote 435 Medicare Part D claims for 100 patients. 47% of them were for generic drugs. CMS names the drug for 332 of them, across 12 drugs with 11 or more claims each, at $106,414 in total drug cost. In 2023, CMS named 332 claims across 11 drugs.
Dr. Vonderhaar's Part D claims by kind of drug, 2024
- Generic203 claims47%
- Brand-name232 claims53%
Dr. Vonderhaar'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 Dr. Vonderhaar's Part D claims, 2024
- Antibiotics9%37 of 435 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: 3322024: 332No change
Drugs named by CMS: 12 in 2024, 11 in 2023.
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 Dr. Derek Joseph Vonderhaar takes part in Medicare
Dr. Vonderhaar 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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Dr. Derek Joseph Vonderhaar received $1,836 in industry payments from 2016 to 2024
CMS Open Payments shows 29 general payments to Dr. Vonderhaar from 10 drug and device companies from 2016 to 2024. Travel and lodging make up the largest share, 59% of the total. Intuitive Surgical, Inc. paid the most, $1,515.
General payments to Dr. Vonderhaar by program year, 2016 to 2024
General payments to Dr. Vonderhaar by kind, 2016 to 2024
- Travel and lodging$1,07859%
- Food and beverage$75841%
Companies that paid Dr. Vonderhaar the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Derek Joseph Vonderhaar graduated from Louisiana State University School of Medicine in New Orleans
Dr. Vonderhaar graduated from Louisiana State University School of Medicine in New Orleans in 2009.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Derek Joseph Vonderhaar's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Derek Joseph Vonderhaar
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Derek Joseph Vonderhaar's NPI number?
Dr. Derek Joseph Vonderhaar's NPI number is 1245471218. It was assigned on March 20, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Derek Joseph Vonderhaar?
Dr. Derek Joseph Vonderhaar is an emergency medicine physician in New Orleans, Louisiana. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Derek Joseph Vonderhaar practice?
Dr. Vonderhaar practices at 1516 Jefferson Hwy, New Orleans, LA 70121. Dr. Vonderhaar's primary practice is Ochsner Medical Center - New Orleans in New Orleans, Louisiana, part of Ochsner Health System. Dmand AI also links Dr. Vonderhaar to 1 hospital and 3 medical groups.
What is Dr. Derek Joseph Vonderhaar's office phone number?
The practice phone on file for Dr. Vonderhaar is (504) 842-3000.
What is Dr. Derek Joseph Vonderhaar's medical license number?
Dr. Vonderhaar holds Louisiana license 204086.
Which hospitals is Dr. Derek Joseph Vonderhaar affiliated with?
Dr. Vonderhaar practices at Ochsner Medical Center - New Orleans in New Orleans, Louisiana. Dr. Vonderhaar is also affiliated with Ochsner Medical Center - Kenner. Dmand AI links Dr. Vonderhaar to 1 more hospital.
What medical group is Dr. Derek Joseph Vonderhaar part of?
Dr. Vonderhaar is linked to Ochsner Health. Dmand AI links Dr. Vonderhaar to 3 more medical groups.
Does Dr. Derek Joseph Vonderhaar accept Medicare?
Yes. CMS data shows Dr. Vonderhaar billed Medicare for 327 services in 2024, and Dr. Vonderhaar accepts Medicare assignment.
How many Medicare patients does Dr. Derek Joseph Vonderhaar see?
CMS counts 140 Medicare patients who saw Dr. Vonderhaar in 2024, with an average age of 72.
What services does Dr. Derek Joseph Vonderhaar bill to Medicare?
In 2024, Dr. Vonderhaar's most billed Medicare services were critical care (99291), office visit, established patient (99214) and hospital inpatient care (99233).
Show 4 more questionsShow fewer questions
Where did Dr. Derek Joseph Vonderhaar go to medical school?
Dr. Vonderhaar graduated from Louisiana State University School of Medicine in New Orleans in 2009.
What drugs does Dr. Derek Joseph Vonderhaar prescribe most?
In 2024 Medicare Part D data, Dr. Vonderhaar's most prescribed drugs by claims were Albuterol Sulfate Hfa, Breztri Aerosphere and Prednisone.
Has Dr. Derek Joseph Vonderhaar received payments from drug or device companies?
CMS Open Payments shows $1,836 in general payments to Dr. Vonderhaar from 10 companies from 2016 to 2024. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Derek Joseph Vonderhaar been practicing?
Dr. Vonderhaar graduated from medical school in 2009, 17 years ago.
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