Dr. William Stewart Steinhardt Jr., MD
- Medicare services, 2024
- 101
- Medicare patients, 2024
- 80
- Part D claims, 2024
- 149
- Hospital affiliations
- 1
- Industry payments
- $2,303
- Practice address
- 1101 Medical Center Blvd, Marrero, LA 70072
- Practice phone
- Call (504) 347-5511
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Steinhardt's professional email, personal email and mobile number
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Dr. William Stewart Steinhardt Jr. is a general surgeon in Marrero, Louisiana
Dr. Steinhardt practices at West Jefferson Medical Center in Marrero, Louisiana, part of LCMC Health.
Dr. Steinhardt's NPI, 1811286610, was assigned on April 1, 2011. Dr. Steinhardt graduated from Louisiana State University School of Medicine in New Orleans in 2011. Dr. Steinhardt holds Louisiana license 206158.
- NPI
- 1811286610NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0446513048
- NPI enumeration date
- April 1, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (504) 347-5511
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William Stewart Steinhardt Jr. practices at West Jefferson Medical Center in Marrero, Louisiana
Dr. Steinhardt'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.
- West Jefferson Medical Center1101 Medical Center Blvd, Marrero, LA 70072 · Jefferson ParishPhone(504) 347-5511
Source: Dmand AI Affiliation Data
Dr. William Stewart Steinhardt Jr. is affiliated with 3 sites of care and 1 medical group
Dr. Steinhardt's primary practice is West Jefferson Medical Center in Marrero, Louisiana, part of LCMC Health. The medical group on file is Southern Surgical Specialists. Dmand AI also links Dr. Steinhardt to 1 more clinical lab and 1 group practice or clinic, 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. William Stewart Steinhardt Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Steinhardt practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| West Jefferson Medical Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across LCMC Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. William Stewart Steinhardt Jr. is one of 377 general surgeons in Louisiana
Surgery is Dr. Steinhardt's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Steinhardt is licensed in Louisiana.
Specialties and state licenses
- Surgery, LouisianaPrimary
General surgeons near Dr. Steinhardt
Counts of general surgeons 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. William Stewart Steinhardt Jr. billed Medicare for 101 services in 2024
CMS data shows 101 Medicare services from Dr. Steinhardt across 4 procedure codes in 2024, for 80 Medicare patients. Medicare paid $9,162 for them.
Dr. Steinhardt's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1122024: 10110%
Where Dr. Steinhardt's Medicare services took place, 2024
- In an office2222%
- In a facility7978%
Dr. Steinhardt compared with the Louisiana median for general surgeons, 2024
- Dr. Steinhardt
- Louisiana median
- Medicare services
- 101vs 14430% below
- Medicare patients
- 80vs 10927% below
- Part D claims
- 83vs 4777% above
Medians across 364 general surgeons in Louisiana with Dmand AI profiles that report each measure.
Dr. Steinhardt'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.
Need commercial claims for Dr. Steinhardt?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Steinhardt and other general surgeons in Louisiana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William Stewart Steinhardt Jr. treated 80 Medicare patients in 2024, average age 70
CMS counts 80 Medicare patients who saw Dr. Steinhardt in 2024. The largest group is 65 to 74, with 38 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 40% are also on Medicaid. Their average risk score is 1.56, 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. Steinhardt's median patient age at 62, with 60% women.
Dr. Steinhardt's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Steinhardt's Medicare patients by sex, 2024
- Women4253%
- Men3848%
Chronic conditions among Dr. Steinhardt's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes41%
- Arthritis39%
- Chronic kidney disease39%
- Mood disorders31%
- Ischemic heart disease30%
- Anxiety26%
Share of Medicare patients with each condition. A patient can have several.
Dr. Steinhardt's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women60%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. William Stewart Steinhardt Jr. wrote 149 Medicare Part D claims in 2024
In 2024, Dr. Steinhardt wrote 149 Medicare Part D claims for 81 patients. 97% of them were for generic drugs. CMS names the drug for 83 of them, across 4 drugs with 11 or more claims each, at $664 in total drug cost. In 2023, CMS named 150 claims across 6 drugs.
Dr. Steinhardt's Part D claims by kind of drug, 2024
- Generic144 claims97%
- Brand-name and other5 claims3%
Dr. Steinhardt'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. Steinhardt's Part D claims, 2024
- Opioids33%49 of 149 claims
- Antibiotics14%21 of 149 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: 1502024: 8345%
Drugs named by CMS: 4 in 2024, 6 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. William Stewart Steinhardt Jr. takes part in Medicare
Dr. Steinhardt accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. William Stewart Steinhardt Jr. received $2,303 in industry payments from 2016 to 2024
CMS Open Payments shows 22 general payments to Dr. Steinhardt from 11 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 53% of the total. Boston Scientific Corporation paid the most, $1,469.
General payments to Dr. Steinhardt by program year, 2016 to 2024
General payments to Dr. Steinhardt by kind, 2016 to 2024
- Food and beverage$1,21753%
- Travel and lodging$1,08647%
Companies that paid Dr. Steinhardt 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. William Stewart Steinhardt Jr. graduated from Louisiana State University School of Medicine in New Orleans
Dr. Steinhardt graduated from Louisiana State University School of Medicine in New Orleans in 2011.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. William Stewart Steinhardt Jr.'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)Doctors and Clinicians Utilization Data (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. William Stewart Steinhardt 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 Dr. William Stewart Steinhardt Jr.'s NPI number?
Dr. William Stewart Steinhardt Jr.'s NPI number is 1811286610. It was assigned on April 1, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. William Stewart Steinhardt Jr.?
Dr. William Stewart Steinhardt Jr. is a general surgeon in Marrero, Louisiana. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. William Stewart Steinhardt Jr. practice?
Dr. Steinhardt practices at 1101 Medical Center Blvd, Marrero, LA 70072. Dr. Steinhardt's primary practice is West Jefferson Medical Center in Marrero, Louisiana, part of LCMC Health. Dmand AI also links Dr. Steinhardt to 1 clinical lab and 1 group practice or clinic.
What is Dr. William Stewart Steinhardt Jr.'s office phone number?
The practice phone on file for Dr. Steinhardt is (504) 347-5511.
What is Dr. William Stewart Steinhardt Jr.'s medical license number?
Dr. Steinhardt holds Louisiana license 206158.
Which hospitals is Dr. William Stewart Steinhardt Jr. affiliated with?
Dr. Steinhardt practices at West Jefferson Medical Center in Marrero, Louisiana.
What medical group is Dr. William Stewart Steinhardt Jr. part of?
Dr. Steinhardt is linked to Southern Surgical Specialists.
Does Dr. William Stewart Steinhardt Jr. accept Medicare?
Yes. CMS data shows Dr. Steinhardt billed Medicare for 101 services in 2024, and Dr. Steinhardt accepts Medicare assignment.
How many Medicare patients does Dr. William Stewart Steinhardt Jr. see?
CMS counts 80 Medicare patients who saw Dr. Steinhardt in 2024, with an average age of 70.
What services does Dr. William Stewart Steinhardt Jr. bill to Medicare?
In 2024, Dr. Steinhardt's most billed Medicare services were hospital inpatient care (99223), hospital inpatient care (99232) and hospital inpatient care (99233).
Show 4 more questionsShow fewer questions
Where did Dr. William Stewart Steinhardt Jr. go to medical school?
Dr. Steinhardt graduated from Louisiana State University School of Medicine in New Orleans in 2011.
What drugs does Dr. William Stewart Steinhardt Jr. prescribe most?
In 2024 Medicare Part D data, Dr. Steinhardt's most prescribed drugs by claims were Pantoprazole Sodium, Tramadol HCl and Hydrocodone-Acetaminophen.
Has Dr. William Stewart Steinhardt Jr. received payments from drug or device companies?
CMS Open Payments shows $2,303 in general payments to Dr. Steinhardt from 11 companies from 2016 to 2024. The largest total came from Boston Scientific Corporation.
How long has Dr. William Stewart Steinhardt Jr. been practicing?
Dr. Steinhardt graduated from medical school in 2011, 15 years ago.
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