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Anesthesiology

Michael L. Sparks, MD

Works at hospitals in Munster, IN · East Chicago, IN · Indiana

Summary

Dr. Michael L. Sparks, MD is an anesthesiologist at 4321 Fir St, East Chicago, IN 46312. Phone: (219) 392-1700. Accepts Medicare assignment. In 2024, Michael L. Sparks had 336 Original Medicare patients and 368 services. NPI 1558821736. 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: Anesthesiologist (Medicare lists Anesthesiology)
  • Address: 4321 Fir St, East Chicago, IN 46312 · Directions (1 more location)
  • Phone: (219) 392‑1700
  • Medicare: Accepts Medicare assignment
  • Hospitals: Community Hospital, St Catherine Hospital Inc
  • Group practice: Nwi Medical Associates, LLC
  • Medical school: Indiana University School Of Medicine · graduated 2020 (6 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Michael L. Sparks, 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 Michael L. Sparks accept Medicare assignment?
Yes. Medicare's clinician data says Michael L. Sparks 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 Michael L. Sparks see?
In 2024, CMS data shows 336 Original Medicare patients and 368 services for Michael L. Sparks. This counts Original Medicare only and measures volume, not quality.
What is Michael L. Sparks's NPI number?
1558821736. 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 Michael L. Sparks, 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 patients336
Services billed to Medicare368
Different services or procedures66
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Anesthesia for other procedure on large bowel using an endoscope (00811)66 services
  2. Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)39 services
  3. Anesthesia for procedure on small and large bowel using an endoscope (00813)33 services
  4. Anesthesia for exam of colon using an endoscope (00812)23 services
  5. Anesthesia for other procedure on urinary system through urethra (00910)17 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%
  • Arthritis58%
  • Ischemic heart disease38%
  • Diabetes34%
  • Anxiety31%

Hospitals where Michael L. Sparks works

Medicare's Facility Affiliation Data lists Michael L. Sparks 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 Michael L. Sparks is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Michael L. Sparks as a member of this group (CMS data updated October 2, 2026).

  • Nwi Medical Associates, LLC69 clinicians in the group

Specialties

Find other Anesthesiology doctors in Indiana →

Other anesthesiologists in East Chicago

Clinicians with the same Medicare primary specialty in East Chicago, IN — not a recommendation.

All anesthesiologists in East Chicago →

Other clinicians in Nwi Medical Associates, LLC

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

Clinician information

CredentialMD
Medical schoolIndiana University School Of Medicine
Graduation year2020 (6 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1558821736
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