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Emergency Medicine

Nate S. Blaustein, MD

Works at hospitals in Springfield, IL · Illinois

Summary

Dr. Nate S. Blaustein, MD is an emergency medicine doctor at 800 E Carpenter St, Springfield, IL 62702. Phone: (217) 544-6464. Accepts Medicare assignment. In 2024, Nate S. Blaustein had 806 Original Medicare patients and 1,180 services. NPI 1437175387. 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: Emergency medicine doctor (Medicare lists Emergency Medicine)
  • Address: 800 E Carpenter St, Springfield, IL 62702 · Directions
  • Phone: (217) 544‑6464
  • Medicare: Accepts Medicare assignment
  • Hospital: St Johns Hospital
  • Group practice: Cepamerica Illinois LLP
  • Medical school: R Franklin University Of Med & Sci/chicago Medical School · graduated 1997 (29 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Nate S. Blaustein, 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 Nate S. Blaustein accept Medicare assignment?
Yes. Medicare's clinician data says Nate S. Blaustein 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 Nate S. Blaustein see?
In 2024, CMS data shows 806 Original Medicare patients and 1,180 services for Nate S. Blaustein. This counts Original Medicare only and measures volume, not quality.
What is Nate S. Blaustein's NPI number?
1437175387. 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 Nate S. Blaustein, 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 patients806
Services billed to Medicare1,180
Different services or procedures29
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)709 services
  2. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)191 services
  3. Emergency department visit with moderate level of medical decision making (99284)160 services
  4. Critical care, first 30-74 minutes (99291)50 services
  5. Emergent insertion of breathing tube into windpipe using an endoscope (31500)11 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%
  • Arthritis55%
  • Ischemic heart disease53%
  • Heart failure44%
  • Anxiety39%

Hospitals where Nate S. Blaustein works

Medicare's Facility Affiliation Data lists Nate S. Blaustein 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.

  • St Johns HospitalSpringfield, IL · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 140053

Practice locations

Addresses where Nate S. Blaustein is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Nate S. Blaustein as a member of this group (CMS data updated October 2, 2026).

  • Cepamerica Illinois LLP499 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Illinois →

Other emergency medicine doctors in Springfield

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

All emergency medicine doctors in Springfield →

Other clinicians in Cepamerica Illinois LLP

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

Clinician information

CredentialMD
Medical schoolR Franklin University Of Med & Sci/chicago Medical School
Graduation year1997 (29 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1437175387
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