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Nurse Practitioner

Chelsey J. Oneill, NP

Works at hospitals in Spokane, WA · Washington

Summary

Chelsey J. Oneill, NP is a nurse practitioner at 421 S Division St, Spokane, WA 99202. Phone: (509) 474-2100. Accepts Medicare assignment. In 2024, Chelsey J. Oneill had 86 Original Medicare patients and 316 services. NPI 1487978904. 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 Chelsey J. Oneill, 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 Chelsey J. Oneill accept Medicare assignment?
Yes. Medicare's clinician data says Chelsey J. Oneill 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 Chelsey J. Oneill see?
In 2024, CMS data shows 86 Original Medicare patients and 316 services for Chelsey J. Oneill. This counts Original Medicare only and measures volume, not quality.
What is Chelsey J. Oneill's NPI number?
1487978904. 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 Chelsey J. Oneill, 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 patients86
Services billed to Medicare316
Different services or procedures21
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)126 services
  2. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)57 services
  3. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)35 services
  4. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)33 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 cholesterol71%
  • High blood pressure57%
  • Arthritis47%
  • Depression36%
  • Anxiety30%
  • Chronic kidney disease28%

Hospitals where Chelsey J. Oneill works

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

Group practices

Medicare enrollment lists Chelsey J. Oneill as a member of this group (CMS data updated October 2, 2026).

  • Providence Health and Services Washington784 clinicians in the group

Specialties

Find other clinicians: Nurse Practitioner, Washington →

Other nurse practitioners in Spokane

Clinicians with the same Medicare primary specialty in Spokane, WA — not a recommendation.

All nurse practitioners in Spokane →

Other clinicians in Providence Health and Services Washington

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

Clinician information

CredentialNP
Graduation year2010
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1487978904
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