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Anesthesiology

Joanna Barclay, MD

Works at hospitals in Barrington, IL · Park Ridge, IL · Elgin, IL … · Illinois

Summary

Dr. Joanna Barclay, MD is an anesthesiologist at 1425 N Randall Rd, Elgin, IL 60123. Phone: (847) 742-9800. Accepts Medicare assignment. In 2024, Joanna Barclay had 410 Original Medicare patients and 2,171 services. NPI 1932210978. 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 Joanna Barclay, 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 Joanna Barclay accept Medicare assignment?
Yes. Medicare's clinician data says Joanna Barclay 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 Joanna Barclay see?
In 2024, CMS data shows 410 Original Medicare patients and 2,171 services for Joanna Barclay. This counts Original Medicare only and measures volume, not quality.
What is Joanna Barclay's NPI number?
1932210978. 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 Joanna Barclay, 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 patients410
Services billed to Medicare2,171
Different services or procedures54
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)376 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)346 services
  3. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)267 services
  4. Injection of trigger points, 1-2 muscles (20552)143 services
  5. Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level (64483)142 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%
  • Arthritis75%
  • Anxiety45%
  • Diabetes39%
  • Depression37%

Hospitals where Joanna Barclay works

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

Group practices

Medicare enrollment lists Joanna Barclay as a member of this group (CMS data updated October 2, 2026).

  • Greater Elgin Pain Management Consultants SC2 clinicians in the group

Specialties

Find other Anesthesiology doctors in Illinois →

Other anesthesiologists in Elgin

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

All anesthesiologists in Elgin →

Other clinicians in Greater Elgin Pain Management Consultants SC

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

Clinician information

CredentialMD
Medical schoolLoyola University Of Chicago, Stritch School Of Medicine
Graduation year1989 (37 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1932210978
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