Olivia Ann Walder, APRN
Family Nurse Practitioner · Onarga, IL
Olivia Ann Walder, APRN is a family nurse practitioner with a practice address in Onarga, Illinois, and NPI 1407543838, issued on Apr 18, 2023. Check the license (Illinois 209027194, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Olivia Ann Walder
- Credential
- APRN
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License numbers
- 209027194 IL
041454193 IL
Self-reported in NPPES; status is on the state search - Practice location
- 912 W Seminary Ave, Onarga, IL 60955
- Phone
- (815) 268-4840
- Enumerated
- Apr 18, 2023
- Record last updated
- Feb 27, 2024
- Fax
- (815) 268-4845
- Medicare enrollment
- Enrolled (PECOS I20230516002668); 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 912 W Seminary Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Tim OndreyPhysical Therapy Assistant1285294272
Verify Olivia Ann Walder in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 209027194Check 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
889 Medicare Part D claims for 66 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 18 claims were for opioids.
Most prescribed
- Lisinopril47 claims
- Atorvastatin Calcium42 claims
- Metformin Hcl39 claims
- Meloxicam35 claims
- Levothyroxine Sodium31 claims
- Amlodipine Besylate27 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.
Industry payments in 2024: $347.78
22 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Gibson Community Hospital AssociationOnarga, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Olivia Ann Walder among 7,639 family nurse practitioner records in Illinois
Olivia Ann Walder, APRN 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 2023, is newer than 78% of them.
- NPI issued2023 · 78% of these records are older, 15% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2022 · median 2018 among the 4,778 with a school on file
- Record last updated2024 · 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).
3 family nurse practitioner records list a practice address in Onarga
They are 3 of the 10 NPPES records with a practice address in Onarga, and 7,639 family nurse practitioner records in Illinois.
All 7,639 in Illinois → Every provider in Onarga → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Beth Gomez, FNP BC PMHNP BCOnarga, IL 609551609263417
- Susan Gray, FNPOnarga, IL 609551770616559
- Mandi Troli, FNP-BCMomence, IL 609541346677895
- Susan Hanson, NPMilford, IL 609531790190445
- Justi Hudson, FNP-BCPaxton, IL 609571497300206
- Connie Langellier, APRN-FPA, FNP-CMilford, IL 609531356697312
- Andrea Stark, APRNPaxton, IL 609571568247229
- Kelli Vaughn, FNP-BCPaxton, IL 609571477800175
Common questions
What is Olivia Ann Walder, APRN's NPI number?
Olivia Ann Walder, APRN's National Provider Identifier (NPI) is 1407543838, issued on Apr 18, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Olivia Ann Walder, APRN located?
The NPPES record lists a practice address at 912 W Seminary Ave, Onarga, IL, 60955. Phone: (815) 268-4840. Providers update this record themselves, so call before visiting.
How can I verify Olivia Ann Walder, APRN's license?
NPPES lists Illinois license number 209027194, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Olivia Ann Walder, APRN prescribe under Medicare Part D?
In 2024, Olivia Ann Walder, APRN had 889 Medicare Part D claims for 66 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.