Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Jennifer Noelle O'Neil, NP

Individual provider Nurse Practitioner · NPI 1689411548

Jennifer Noelle O'Neil, NP is a Nurse Practitioner in Crystal Lake, Illinois. Qualified in 2023, 3 years ago. Practices with Mercy Health System Corporation, a 751-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
3
Licensed in
IL
In the registry since
2024
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

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Practice location Address checks out

875 S Route 31
Crystal Lake, IL 60014-8190
Phone: (779) 220-5500
Fax: (779) 220-5184
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 968 Woodbridge Dr, Cary, IL 60013-2499 — (847) 239-0794

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 209.030274 (IL)

Record details

NPI number1689411548
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorNo
NPI enumeratedJuly 9, 2024
Last updated in NPPESDecember 31, 2024
Certification dateDecember 26, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2023 (3 years in practice)
Group practice Mercy Health System Corporation — 751 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Travel and Lodging $296 3 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $110 7 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Mercy Health System Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 751 clinicians in the practice; 12 are shown here.

Other providers in Crystal Lake