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Internal Medicine

Steven B. Deitelzweig, MD

Works at hospitals in New Orleans, LA · Louisiana

Summary

Dr. Steven B. Deitelzweig, MD is an internal medicine doctor at 100 Medical Ctr Dr, Slidell, LA 70461. Phone: (985) 646-5100. Accepts Medicare assignment. In 2024, Steven B. Deitelzweig had 23 Original Medicare patients and 74 services. NPI 1811954910. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 100 Medical Ctr Dr, Slidell, LA 70461 · Directions (1 more location)
  • Phone: (985) 646‑5100
  • Medicare: Accepts Medicare assignment
  • Hospital: Ochsner Medical Center Acute
  • Group practice: Belle Chasse Physician Services LLC
  • Medical school: State University Of New York At Stony Brook, School Of Medicine · graduated 1989 (37 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Steven B. Deitelzweig, 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 Steven B. Deitelzweig accept Medicare assignment?
Yes. Medicare's clinician data says Steven B. Deitelzweig 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 Steven B. Deitelzweig see?
In 2024, CMS data shows 23 Original Medicare patients and 74 services for Steven B. Deitelzweig. This counts Original Medicare only and measures volume, not quality.
What is Steven B. Deitelzweig's NPI number?
1811954910. 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 Steven B. Deitelzweig, 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 patients23
Services billed to Medicare74
Different services or procedures6
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)31 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 blood pressure75%
  • High cholesterol75%
  • Chronic kidney disease70%
  • Diabetes57%
  • Depression57%
  • Heart failure57%

Hospitals where Steven B. Deitelzweig works

Medicare's Facility Affiliation Data lists Steven B. Deitelzweig at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Steven B. Deitelzweig is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Steven B. Deitelzweig as a member of this group (CMS data updated October 2, 2026).

  • Belle Chasse Physician Services LLC262 clinicians in the group

Specialties

Find other Internal Medicine doctors in Louisiana →

Other internal medicine doctors in Slidell

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

All internal medicine doctors in Slidell →

Other clinicians in Belle Chasse Physician Services LLC

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

Clinician information

CredentialMD
Medical schoolState University Of New York At Stony Brook, School Of Medicine
Graduation year1989 (37 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1811954910
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. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians