Julie O'Brien, APN, CNS
NPI 1457485328 · Gerontology Nurse Practitioner · Peoria, IL
Enrolled with Medicare as Practitioner - Certified Clinical Nurse Specialist (cns) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Julie O'Brien, APN, CNS is a Gerontology Nurse Practitioner provider in Peoria, IL (NPI 1457485328).
Provider details
- NPI number
- 1457485328
- Entity type
- Individual
- Primary specialty
- Gerontology Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APN, CNS
- Sex
- Female
- Sole proprietor
- No
- License
- 209002981 (IL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,505 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 751 | $103 |
| Hemoglobin A1c Level83036 | 617 | $9 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 61 | $147 |
| Administration of Influenza Virus VaccineG0008 | 52 | $31 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 24 | $74 |
Typical Medicare-allowed amounts for these services range $9–$147 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 73 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Insulin Glargine,hum.rec.anlogbrand: Lantus Solostar | 451 | 156 |
| Semaglutidebrand: Ozempic | 445 | 81 |
| Tirzepatidebrand: Mounjaro | 375 | 70 |
| Metformin Hcl | 296 | 98 |
| Empagliflozinbrand: Jardiance | 281 | 72 |
| Insulin Aspartbrand: Novolog Flexpen | 244 | 100 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$31 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-03-15
- Last updated
- 2024-12-12
- Certified
- 2024-12-12
Frequently asked questions
- What is Julie O'Brien's NPI number?
- Julie O'Brien's National Provider Identifier (NPI) is 1457485328, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Julie O'Brien's specialty?
- Julie O'Brien is listed in the NPPES registry with a primary specialty of Gerontology Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Julie O'Brien located?
- Julie O'Brien's practice location on file with NPPES is 8600 N State Route 91, Peoria, IL 61615-9541.
- What is Julie O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Julie O'Brien is (309) 683-5409.
- Does Julie O'Brien accept Medicare?
- Julie O'Brien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Julie O'Brien's NPI active?
- Yes — Julie O'Brien's NPI (1457485328) is active in the NPPES registry as of the last update on 2024-12-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.