Amanda Updegraff, PHARMD
Amanda Updegraff, PHARMD is a Pharmacist in O Fallon, MO, registered under NPI 1003198318. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
Here is what surrounds this office in O Fallon, based on OpenStreetMap data collected Sep 11, 2026. Parking is available about 958 ft away. A pharmacy sits 44 ft from the entrance (Walgreens), which helps if you leave with a prescription.
Getting here and what is nearby
Pharmacy Walgreens 44 ft ~1 min
Restaurant Red Robin 239 ft ~1 min
Convenience QuikTrip 750 ft ~3 min
Gas station QuikTrip 720 ft ~3 min
Parking 717 ft ~3 min
Parking 785 ft ~3 min
Restaurant Wendy's 858 ft ~4 min
1420 Mexico Loop Road East, O'Fallon 63366
07:00-22:00
Parking 958 ft ~4 min
Restaurant Ichiro Ramen Bowl 0.25 mi ~5 min
1365 Highway K, O'Fallon 63366
Grocery Walmart Supercenter 0.37 mi ~8 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 2011024492 | MO | Pharmacist primary |
This provider holds licence 2011024492 issued in MO. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Pharmacist covers
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 Health Care Provider Taxonomy, code 183500000X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1003198318 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Sep 13, 2011 |
| Last updated | Dec 18, 2022 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | PHARMD |
| Practice address |
1490 MEXICO LOOP RD E O Fallon, MO 63366 (636) 978-1602 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 1 | 9 | 8 | 3 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 9 | 7 | 3 | 2 |
Sum = 52 · next multiple of 10 = 60 · check digit = 8 · actual last digit = 8
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.