William Markiewicz
William Markiewicz is a Pharmacist in Brownsburg, IN, registered under NPI 1003453788. 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 Brownsburg, based on OpenStreetMap data collected Sep 27, 2026. Parking is available about 0.28 mi away. If you arrive early, there is a coffee shop 0.27 mi away.
Getting here and what is nearby
Restaurant Green Street Pub & Eatery 278 ft ~2 min
911 North Green Street, Brownsburg 46112
Su-Mo off; Tu-Sa 11:00-21:00
Restaurant Jimmy John's 345 ft ~2 min
Restaurant Yamato Sushi & Hibachi Express 384 ft ~2 min
927 North Green Street, Brownsburg 46112
Coffee Starbucks 691 ft ~3 min
Grocery Kroger 757 ft ~3 min
975 North Green Street, Brownsburg 46112
Mo-Su 06:00-22:00
Convenience GetGo 867 ft ~4 min
1051 North Green Street, Brownsburg 46112
Gas station Speedway 878 ft ~4 min
920 North Green Street, Brownsburg 46112
Convenience Speedway 951 ft ~4 min
920 North Green Street, Brownsburg 46112
Gas station BP 949 ft ~4 min
1051 North Green Street, Brownsburg 46112
Parking 0.24 mi ~5 min
Parking 0.25 mi ~5 min
Coffee Starbucks 0.27 mi ~6 min
1085 N Green Street;1085 N Green Street, Brownsburg 46112
Parking 0.28 mi ~6 min
Grocery Aldi 0.35 mi ~7 min
Hotel Super 8 by Wyndham Brownsburg 0.40 mi ~8 min
Grocery Walmart Supercenter 0.46 mi ~10 min
400 West Northfield Drive, Brownsburg 46112
24/7
Gas station Casey's General Store 0.47 mi ~10 min
560 East Northfield Drive, Brownsburg 46112
Convenience Casey's General Store 0.49 mi ~10 min
560 East Northfield Drive, Brownsburg 46112
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 |
|---|---|---|
| 26017982 | IN | Pharmacist primary |
This provider holds licence 26017982 issued in IN. 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 | 1003453788 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Dec 2, 2019 |
| Last updated | Dec 2, 2019 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Practice address |
905 N GREEN ST Brownsburg, IN 46112 (317) 852-3340 Fax (317) 852-1200 |
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 | 4 | 5 | 3 | 7 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 5 | 6 | 7 | 7 |
Sum = 62 · next multiple of 10 = 70 · 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.