MERCY PHARMACY SERVICES, LLC
MERCY PHARMACY SERVICES, LLC is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1003748328, based in Saint Charles, MO. The organization lists 2 taxonomy classifications, with Community/Retail Pharmacy recorded as primary.
Getting there
Here is what surrounds this office in Saint Charles, based on OpenStreetMap data collected Oct 20, 2026. Parking is available about 0.48 mi away. A pharmacy sits 0.42 mi from the entrance (Walgreens), which helps if you leave with a prescription.
Getting here and what is nearby
Gas station Moto Mart 287 ft ~2 min
3750 New Town Boulevard, Saint Charles 63301
Restaurant Pizza Hut 810 ft ~4 min
Hotel Sleep Inn Saint Charles 893 ft ~4 min
150 Fountain Lakes Boulevard, Saint Charles 63301
Restaurant Sonic 0.40 mi ~8 min
3851 Elm Street, Saint Charles 63301
Mo-Th 09:00-20:00; Fr-Sa 09:00-21:00; Su 09:00-20:00
Parking 0.41 mi ~9 min
Mueller Road, Saint Charles 63301
Pharmacy Walgreens 0.42 mi ~9 min
Restaurant The Elm Taphouse 0.43 mi ~9 min
Parking Fountain Lakes Park North 0.45 mi ~10 min
Parking 0.48 mi ~10 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
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 Community/Retail Pharmacy covers
A pharmacy where pharmacists store, prepare, and dispense medicinal preparations and/or prescriptions for a local patient population in accordance with federal and state law; counsel patients and caregivers (sometimes independent of the dispensing process); administer vaccinations; and provide other professional services associated with pharmaceutical care such as health screenings, consultative services with other health care providers, collaborative practice, disease state management, and education classes. NUCC Health Care Provider Taxonomy, code 3336C0003X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 3336C0003X | Community/Retail Pharmacy Community/Retail Pharmacy | — | — | primary |
| 333600000X | Pharmacy | — | — |
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-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1003748328 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Jun 1, 2026 |
| Last updated | Aug 6, 2026 |
| Status | Active |
| Practice address |
3722 NEW TOWN BLVD Saint Charles, MO 63301 (636) 866-2420 |
| Mailing address |
14528 S OUTER 40 RD Chesterfield, MO 63017 |
| Other names |
Mercy Pharmacy 370 Crossing Former Legal Name |
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 | 7 | 4 | 8 | 3 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 5 | 4 | 7 | 3 | 4 |
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.