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Anesthesiology

Sebastian N. Bienia, MD

Works at hospitals in Hinsdale, IL · La Grange, IL · Illinois

Summary

Dr. Sebastian N. Bienia, MD is an anesthesiologist at 120 N Oak St, Hinsdale, IL 60521. Phone: (630) 856-9000. Accepts Medicare assignment. In 2024, Sebastian N. Bienia had 247 Original Medicare patients and 296 services. NPI 1932499472. 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.

From official Medicare data

This page shows what Medicare's official clinician data says about Sebastian N. Bienia, 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 Sebastian N. Bienia accept Medicare assignment?
Yes. Medicare's clinician data says Sebastian N. Bienia 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 Sebastian N. Bienia see?
In 2024, CMS data shows 247 Original Medicare patients and 296 services for Sebastian N. Bienia. This counts Original Medicare only and measures volume, not quality.
What is Sebastian N. Bienia's NPI number?
1932499472. 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 Sebastian N. Bienia, 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 patients247
Services billed to Medicare296
Different services or procedures66
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Insertion of artery tube for blood sampling or infusion through skin (36620)25 services
  2. Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)22 services
  3. Ultrasonic guidance for blood vessel access (76937)22 services
  4. Anesthesia for x-ray or radiation therapy (01922)20 services
  5. Anesthesia for lens surgery (00142)19 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%
  • Arthritis62%
  • Ischemic heart disease51%
  • Anxiety34%
  • Atrial fibrillation34%

Hospitals where Sebastian N. Bienia works

Medicare's Facility Affiliation Data lists Sebastian N. Bienia 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 Sebastian N. Bienia is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Sebastian N. Bienia as a member of these groups (CMS data updated October 2, 2026).

  • Northstar Anesthesia of Illinois, LLC409 clinicians in the group
  • Midwest Anesthesia Partners LLC119 clinicians in the group

Specialties

Find other Anesthesiology doctors in Illinois →

Other anesthesiologists in Hinsdale

Clinicians with the same Medicare primary specialty in Hinsdale, IL — not a recommendation.

All anesthesiologists in Hinsdale →

Other clinicians in Northstar Anesthesia of Illinois, LLC

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

Clinician information

CredentialMD
Graduation year2011 (15 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1932499472
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