Jennifer O'Neil, NP
NPI 1689411548 · Nurse Practitioner · Crystal Lake, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jennifer O'Neil, NP is a Nurse Practitioner provider in Crystal Lake, IL (NPI 1689411548).
Provider details
- NPI number
- 1689411548
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- 209.030274 (IL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (1)
- 968 Woodbridge DrCary, IL 60013-2499Phone: (847) 239-0794
Registry dates
- Enumerated
- 2024-07-09
- Last updated
- 2024-12-31
- Certified
- 2024-12-26
Frequently asked questions
- What is Jennifer O'Neil's NPI number?
- Jennifer O'Neil's National Provider Identifier (NPI) is 1689411548, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jennifer O'Neil's specialty?
- Jennifer O'Neil is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Jennifer O'Neil located?
- Jennifer O'Neil's practice location on file with NPPES is 875 S Route 31, Crystal Lake, IL 60014-8190.
- What is Jennifer O'Neil's phone number?
- The practice phone number listed in the NPPES registry for Jennifer O'Neil is (779) 220-5500.
- Does Jennifer O'Neil accept Medicare?
- Jennifer O'Neil is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jennifer O'Neil's NPI active?
- Yes — Jennifer O'Neil's NPI (1689411548) is active in the NPPES registry as of the last update on 2024-12-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.