MERCY PHARMACY SERVICES LLC
MERCY PHARMACY SERVICES LLC is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1003520586, based in Crestwood, MO. It is classified under Community/Retail Pharmacy.
Getting there
Here is what surrounds this office in Crestwood, based on OpenStreetMap data collected Oct 3, 2026. Parking is available about 0.40 mi away. There is EV charging 120 ft from the office — useful if you are driving in from out of town. The nearest transit stop is 0.23 mi away, served by Watson at Park Crestwood. A pharmacy sits 921 ft from the entrance (Neels Pharmacy), which helps if you leave with a prescription.
Getting here and what is nearby
EV charging 120 ft ~1 min
Restaurant Panera Bread 223 ft ~1 min
Parking 389 ft ~2 min
Grocery Dierbergs 500 ft ~2 min
Transit Watson at New Sappington 584 ft ~3 min
Restaurant The Mexican STL 590 ft ~3 min
Grocery Schnucks 615 ft ~3 min
Convenience Watson Gas Mart 717 ft ~3 min
Gas station BP 766 ft ~3 min
Parking 818 ft ~4 min
Pharmacy Neels Pharmacy 921 ft ~4 min
Transit Watson at Sappington 0.22 mi ~5 min
Transit Watson at Park Crestwood 0.23 mi ~5 min
Restaurant Taco Bell 0.36 mi ~8 min
Parking 0.40 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
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.
- Status
- Approved
- Provider type
- Dme Supplier - Pharmacy
- PAC ID
- 3375815483
- Enrollment ID
- O20230803002916
Medicare enrolment is recorded as approved under the provider type Dme Supplier - Pharmacy. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
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
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 | 1003520586 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Jan 10, 2023 |
| Last updated | Jan 26, 2026 |
| Status | Active |
| Practice address |
9555 WATSON RD SUITE A Crestwood, MO 63126 (314) 628-5626 |
| Mailing address |
14528 S OUTER 40 RD Chesterfield, MO 63017 |
| Other names |
Mercy Pharmacy Crestwood 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 | 5 | 2 | 0 | 5 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 1 | 2 | 0 | 5 | 7 |
Sum = 44 · next multiple of 10 = 50 · check digit = 6 · actual last digit = 6
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.