IndividualActive
Allison Washenko
NPI 1821698432 · Pharmacist · O Fallon, IL
Allison Washenko is a Pharmacist provider in O Fallon, IL (NPI 1821698432).
Provider details
- NPI number
- 1821698432
- Entity type
- Individual
- Primary specialty
- PharmacistPharmacy Service Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- 2020024553 (MO)
Specialties & taxonomies
Pharmacy Service Providers
Pharmacy Service Providers
Profile Score
Established profile(68/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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.
Practice location
1530 W Highway 50
O Fallon, IL 62269-1619
Phone: (618) 632-9381
Street-level locationGet directions
Mailing address
1530 W Highway 50
O Fallon, IL 62269-1619
Additional practice locations (1)
- 1040 Collinsville Crossing BlvdCollinsville, IL 62234-1882Phone: (618) 344-7112
Registry dates
- Enumerated
- 2020-11-01
- Last updated
- 2025-06-09
- Certified
- 2025-06-09
Frequently asked questions
- What is Allison Washenko's NPI number?
- Allison Washenko's National Provider Identifier (NPI) is 1821698432, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Allison Washenko's specialty?
- Allison Washenko is listed in the NPPES registry with a primary specialty of Pharmacist (Pharmacy Service Providers).
- Where is Allison Washenko located?
- Allison Washenko's practice location on file with NPPES is 1530 W Highway 50, O Fallon, IL 62269-1619.
- What is Allison Washenko's phone number?
- The practice phone number listed in the NPPES registry for Allison Washenko is (618) 632-9381.
- Is Allison Washenko's NPI active?
- Yes — Allison Washenko's NPI (1821698432) is active in the NPPES registry as of the last update on 2025-06-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.