Allison Renee Washenko
Pharmacist β’ O Fallon, IL
1530 W Highway 50
O Fallon, IL 622691619
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
Practice Location & Contact Primary Location
1530 W Highway 50
O Fallon, IL 622691619
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 1 additional practice-address record in Collinsville, IL. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
What Public CMS Data Show
Pharmacist: NPPES taxonomy is a reported classification, not proof of board certification.
NPI first issued
2020
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, βDoes your provider accept Medicare as full payment?β
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Compared with the same specialty in O Fallon and Illinois
30 active clinicians are listed under Pharmacist with a practice address in O Fallon, IL (9,750 in Illinois).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in O Fallon
0% of these 30 clinicians have the CMS telehealth indicator.
0% of these 30 clinicians are listed by CMS as accepting Medicare assignment.
Sources: CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo Β· Report an error.
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2025-06-09NUCC Taxonomy Code: 183500000X
An individual licensed by the appropriate state regulatory agency to engage in the practice of pharmacy. The practice of pharmacy includes, but is not limited to, assessment, interpretation, evaluation, and implementation, initiation, monitoring or modification of medication and or medical orders; the compounding or dispensing of medication and or medical orders; participation in drug and device procurement, storage, and selection; drug administration; drug regimen reviews; drug or drug-related research; provision of patient education and the provision of those acts or services necessary to provide medication therapy management services in all areas of patient care.
NUCC Taxonomy Code: 183500000X
An individual licensed by the appropriate state regulatory agency to engage in the practice of pharmacy. The practice of pharmacy includes, but is not limited to, assessment, interpretation, evaluation, and implementation, initiation, monitoring or modification of medication and or medical orders; the compounding or dispensing of medication and or medical orders; participation in drug and device procurement, storage, and selection; drug administration; drug regimen reviews; drug or drug-related research; provision of patient education and the provision of those acts or services necessary to provide medication therapy management services in all areas of patient care.
Secondary Practice Locations
1040 Collinsville Crossing Blvd
Collinsville, IL 622341882
Phone: 6183447112
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Recorded as ALLISON WASHENKO
NPI status registered as active in NPPES database
Registered at 1530 W HIGHWAY 50, O FALLON, IL 622691619 (Tel: 6186329381)
Registered at 1530 W HIGHWAY 50, O FALLON, IL 622691619 (Tel: 6186329381)
Recorded as ALLISON SCHLEEPER
Pharmacist (license number reported to NPPES: MO 2020024553)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Pharmacists in O Fallon
Healthcare providers in O FallonMailing Address
1530 W Highway 50
O Fallon, IL 622691619
Phone: 6186329381