Joanne O'Brien, FNP-BC
NPI 1669447892 · Family Nurse Practitioner · Springfield, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joanne O'Brien, FNP-BC is a Family Nurse Practitioner provider in Springfield, IL (NPI 1669447892).
Provider details
- NPI number
- 1669447892
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-BC
- Sex
- Female
- Sole proprietor
- No
- License
- 209000415 (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 tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
722 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 208 | $74 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 99 | $105 |
| Amplifed Dna Or Rna Probe Detection of Severe Acute Respiratory Syndrome Coronavirus 2 (covid-19) Antigen87635 | 87 | $50 |
| Manual Urinalysis Test With Examination Using Microscope, Automated81001 | 66 | $3 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 48 | $147 |
| Detection Test By Nucleic Acid for Multiple Types Influenza Virus87502 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 116 | 112 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 108 | 106 |
| Cefuroxime Axetilbrand: Cefuroxime | 72 | 71 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 58 | 54 |
| Doxycycline Monohydrate | 58 | 58 |
| Azithromycin | 34 | 34 |
| Ciprofloxacin Hcl | 34 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-02-21
- Last updated
- 2020-05-21
- Certified
- 2020-05-21
Frequently asked questions
- What is Joanne O'Brien's NPI number?
- Joanne O'Brien's National Provider Identifier (NPI) is 1669447892, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joanne O'Brien's specialty?
- Joanne O'Brien is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Joanne O'Brien located?
- Joanne O'Brien's practice location on file with NPPES is 1025 S 6th St, Springfield, IL 62703-2403.
- What is Joanne O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Joanne O'Brien is (217) 528-7541.
- Does Joanne O'Brien accept Medicare?
- Joanne 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 Joanne O'Brien's NPI active?
- Yes — Joanne O'Brien's NPI (1669447892) is active in the NPPES registry as of the last update on 2020-05-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.