Ashley Messmer
Family Nurse Practitioner · Peoria, IL
Ashley Messmer is a family nurse practitioner with a practice address in Peoria, Illinois, and NPI 1669818415, issued on May 21, 2013. Check the license (Illinois 209010548, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ashley Messmer
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 209010548 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1310 N Missouri Ave, Peoria, IL 61603
- Phone
- (309) 308-3800
- Enumerated
- May 21, 2013
- Record last updated
- Apr 20, 2026
- Fax
- (309) 623-2330
- Medicare enrollment
- Enrolled (PECOS I20130819000215); 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 1310 N Missouri Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Maggie Cour, RNRegistered Nurse1093652992
- Anna Eastman, LCSWClinical Social Worker1093651416
- Peter Egwom, MDMedical Oncology Physician1649898784
- Tamara Floyd, M.D.Surgery Physician1932513207
- Josie Jepson, PAPhysician Assistant1043034838
- Rafael Marquez, MDObstetrics & Gynecology Physician1790177574
Verify Ashley Messmer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 209010548Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
74% fewer Medicare Part D claims than the average family nurse practitioner in 2024
342 Medicare Part D claims for 122 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. 58 claims were for opioids.
Most prescribed
- Dexamethasone34 claims
- Hydrocodone-Acetaminophen23 claims
- Acyclovir20 claims
- Ondansetron Hcl18 claims
- Levothyroxine Sodium17 claims
- Oxycodone Hcl12 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
- Osf Multi-Specialty GroupPeoria, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ashley Messmer among 7,639 family nurse practitioner records in Illinois
Ashley Messmer 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 2013, is newer than 17% of them.
- NPI issued2013 · 17% of these records are older, 80% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2013 · median 2018 among the 4,778 with a school on file
- Record last updated2026 · 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).
215 family nurse practitioner records list a practice address in Peoria
They are 215 of the 4,621 NPPES records with a practice address in Peoria, and 7,639 family nurse practitioner records in Illinois.
All 7,639 in Illinois → Every provider in Peoria → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Susannah Dintzis, FNPPeoria, IL 616031902848153
- Bethany Ferguson, FNP-BCPeoria, IL 616031235505108
- Laura Fullerton, APNPeoria, IL 616031356406144
- Asma Hamid, NPPeoria, IL 616031437507308
- Aretha Johnson, FNPPeoria, IL 616031457798332
- Courtney KleinPeoria, IL 616031598362980
- Jennifer Kolettis, NP-CPeoria, IL 616031790256303
- Angela Miller, FNP-CPeoria, IL 616031740725837
Common questions
What is Ashley Messmer's NPI number?
Ashley Messmer's National Provider Identifier (NPI) is 1669818415, issued on May 21, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Ashley Messmer located?
The NPPES record lists a practice address at 1310 N Missouri Ave, Peoria, IL, 61603. Phone: (309) 308-3800. Providers update this record themselves, so call before visiting.
How can I verify Ashley Messmer's license?
NPPES lists Illinois license number 209010548, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Ashley Messmer prescribe under Medicare Part D?
In 2024, Ashley Messmer had 342 Medicare Part D claims for 122 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.