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Allergy/Immunology

Penelope A. Ewbank, MD

Works at hospitals in Peoria, IL · Peru, IL · Illinois

Summary

Dr. Penelope A. Ewbank, MD is an allergist and immunologist at 6615 N Big Hollow Rd, Peoria, IL 61615. Phone: (309) 691-5200. Accepts Medicare assignment. In 2024, Penelope A. Ewbank had 162 Original Medicare patients and 5,849 services. NPI 1558358911. 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 Penelope A. Ewbank, 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 Penelope A. Ewbank accept Medicare assignment?
Yes. Medicare's clinician data says Penelope A. Ewbank 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 Penelope A. Ewbank see?
In 2024, CMS data shows 162 Original Medicare patients and 5,849 services for Penelope A. Ewbank. This counts Original Medicare only and measures volume, not quality.
What is Penelope A. Ewbank's NPI number?
1558358911. 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 Penelope A. Ewbank, 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 patients162
Services billed to Medicare5,849
Different services or procedures29
Participating Medicare providerYes
Average age of these patients71

Most frequent services

  1. Test for allergy using skin patch (95044)884 services
  2. Test for allergy using allergenic extract (95004)318 services
  3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)143 services
  4. Professional service for preparation and provision of 1 or more antigens (95165)142 services
  5. Test to measure expiratory airflow and volume (94010)100 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 cholesterol68%
  • High blood pressure67%
  • Asthma49%
  • Arthritis45%
  • Chronic kidney disease26%
  • Anxiety25%

Hospitals where Penelope A. Ewbank works

Medicare's Facility Affiliation Data lists Penelope A. Ewbank 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 Penelope A. Ewbank is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Penelope A. Ewbank as a member of this group (CMS data updated October 2, 2026).

  • Springfield Clinic, LLP687 clinicians in the group

Specialties

Find other Allergy/Immunology doctors in Illinois →

Other allergist and immunologists in Peoria

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

All allergist and immunologists in Peoria →

Other clinicians in Springfield Clinic, LLP

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

Clinician information

CredentialMD
Medical schoolWashington University School Of Medicine
Graduation year1996 (30 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1558358911
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