Joanne F. O'Brien, FNP-BC
Family Nurse Practitioner · Springfield, IL
Joanne F. O'Brien, FNP-BC is a family nurse practitioner with a practice address in Springfield, Illinois, and NPI 1669447892, issued on Feb 21, 2006. Check the license (Illinois 209000415, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Joanne F. O'Brien
- Credential
- FNP-BC
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 209000415 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1025 S 6TH St, Springfield, IL 62703
- Phone
- (217) 528-7541
- Enumerated
- Feb 21, 2006
- Record last updated
- May 21, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (217) 528-8962
- Medicare enrollment
- Enrolled (PECOS I20081213000264); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 7,639 in Illinois → Look up another NPI →
Also registered at 1025 S 6TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jeffrey Adkins, CRNACertified Registered Nurse Anesthetist1992793954
- Deborah Albright, M.D.Internal Medicine Physician1639145360
- Stanley Allen, M.D.Internal Medicine Physician1285631127
- Jessica Alwerdt, PHYSICIAN ASSISTANTPhysician Assistant1669706057
Verify Joanne F. O'Brien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 209000415Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
32% fewer Medicare Part D claims than the average family nurse practitioner in 2024
883 Medicare Part D claims for 653 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Prednisone116 claims
- Amoxicillin-Clavulanate Potass108 claims
- Cefuroxime72 claims
- Doxycycline Monohydrate58 claims
- Nitrofurantoin Mono-Macro58 claims
- Azithromycin34 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Springfield Clinic, LLPSpringfield, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joanne F. O'Brien among 7,639 family nurse practitioner records in Illinois
Joanne F. O'Brien, FNP-BC is one of 7,639 family nurse practitioner records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than under 1% of them.
- NPI issued2006 · under 1% of these records are older, 95% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1996 · median 2018 among the 4,778 with a school on file
- Record last updated2020 · 39% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
309 family nurse practitioner records list a practice address in Springfield
They are 309 of the 4,997 NPPES records with a practice address in Springfield, and 7,639 family nurse practitioner records in Illinois.
All 7,639 in Illinois → Every provider in Springfield → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Angela Anselm, FNP-BCSpringfield, IL 627031679884944
- Tammy Bartolomucci, APNSpringfield, IL 627031770721144
- Candace Benner, N.P.Springfield, IL 627031932268919
- Leona Burnham, FNP-CSpringfield, IL 627031487977427
- Mary Dambacher, FNP-BCSpringfield, IL 627031477995611
- Michelle Evans, FNPSpringfield, IL 627031639142011
- Heather Ey, N.P.Springfield, IL 627031699962597
- Richard Foster, A.P.R.N., F.N.P.Springfield, IL 627031073604260
Common questions
What is Joanne F. O'Brien, FNP-BC's NPI number?
Joanne F. O'Brien, FNP-BC's National Provider Identifier (NPI) is 1669447892, issued on Feb 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Joanne F. O'Brien, FNP-BC located?
The NPPES record lists a practice address at 1025 S 6TH St, Springfield, IL, 62703. Phone: (217) 528-7541. Providers update this record themselves, so call before visiting.
How can I verify Joanne F. O'Brien, FNP-BC's license?
NPPES lists Illinois license number 209000415, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Joanne F. O'Brien, FNP-BC prescribe under Medicare Part D?
In 2024, Joanne F. O'Brien, FNP-BC had 883 Medicare Part D claims for 653 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.