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Nurse Practitioner

Elmira B. Thomas, NP

Works at hospitals in Chicago, IL · Illinois

Summary

Elmira B. Thomas, NP is a nurse practitioner at 645 S Central Ave, Chicago, IL 60644. Phone: (773) 854-5567. Accepts Medicare assignment. In 2024, Elmira B. Thomas had 37 Original Medicare patients and 278 services. NPI 1871095109. 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: Nurse practitioner
  • Address: 645 S Central Ave, Chicago, IL 60644 · Directions
  • Phone: (773) 854‑5567
  • Medicare: Accepts Medicare assignment
  • Hospital: Loretto Hospital
  • Group practice: Loretto Hospital
  • School: graduated 2015
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Elmira B. Thomas, 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 Elmira B. Thomas accept Medicare assignment?
Yes. Medicare's clinician data says Elmira B. Thomas 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 Elmira B. Thomas see?
In 2024, CMS data shows 37 Original Medicare patients and 278 services for Elmira B. Thomas. This counts Original Medicare only and measures volume, not quality.
What is Elmira B. Thomas's NPI number?
1871095109. 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 Elmira B. Thomas, 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 patients37
Services billed to Medicare278
Different services or procedures16
Participating Medicare providerYes
Average age of these patients66

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)34 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 cholesterol73%
  • Diabetes49%
  • Arthritis35%

Hospitals where Elmira B. Thomas works

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

Group practices

Medicare enrollment lists Elmira B. Thomas as a member of this group (CMS data updated October 2, 2026).

  • Loretto Hospital40 clinicians in the group

Specialties

Find other clinicians: Nurse Practitioner, Illinois →

Other nurse practitioners in Chicago

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

All nurse practitioners in Chicago →

Other clinicians in Loretto Hospital

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

Clinician information

CredentialNP
Graduation year2015
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1871095109
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