Michael Gremban
Michael Gremban is a Pharmacist in West Milwaukee, WI, registered under NPI 1003414822.
Getting there
Here is what surrounds this office in West Milwaukee, based on OpenStreetMap data collected Sep 25, 2026. Parking is available about 0.54 mi away at Uecker. There is EV charging 480 ft from the office (Walmart 5669) — useful if you are driving in from out of town. The nearest transit stop is 907 ft away, served by Miller Park Way & Greenfield. If you arrive early, there is a coffee shop 0.21 mi away.
Getting here and what is nearby
Restaurant Subway 53 ft ~1 min
4140 West Greenfield Avenue, West Milwaukee 53215
07:30-21:30
Parking 122 ft ~1 min
Grocery Walmart Supercenter 166 ft ~1 min
4140 West Greenfield Avenue, West Milwaukee 53215
Mo-Su 06:00-11:00
Parking 387 ft ~2 min
EV charging Walmart 5669 480 ft ~2 min
Coffee Starbucks 538 ft ~3 min
Restaurant Jersey Mike's Subs 521 ft ~2 min
Restaurant Qdoba 523 ft ~2 min
1240 Miller Park Way, West Milwaukee 53214
10:30-23:00
Transit Greenfield & 41st Street 585 ft ~3 min
Transit Greenfield & 41st Street 650 ft ~3 min
Hotel Fairfield Inn 772 ft ~3 min
Transit Miller Park Way & Greenfield 907 ft ~4 min
Convenience BP Shop 886 ft ~4 min
4229 West Greenfield Avenue, Milwaukee 53215
Gas station BP 875 ft ~4 min
Coffee Fiesta Cafe 994 ft ~4 min
3812 West Greenfield Avenue, West Milwaukee 53215
Mo-Su 10:00-22:00
Coffee Energy Place MKE 0.21 mi ~5 min
Grocery Cermak Fresh Market 0.39 mi ~8 min
Convenience First Stop Foods 0.41 mi ~9 min
Grocery ALDI 0.42 mi ~9 min
1441 South 35th Street, Milwaukee 53215
09:00-20:00
Parking Uecker 0.54 mi ~11 min
500 South 44th Street, Milwaukee 53214
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 |
|---|---|---|
| 17947-40 | WI | Pharmacist primary |
This provider holds licence 17947-40 issued in WI. 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 | 1003414822 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Oct 14, 2020 |
| Last updated | Oct 14, 2020 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Practice address |
4140 W GREENFIELD AVE West Milwaukee, WI 53215 (414) 978-2007 Fax (414) 978-2008 |
| Mailing address |
106 WOODLARK CT Waukesha, WI 53186 |
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 | 1 | 4 | 8 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 1 | 8 | 8 | 4 |
Sum = 58 · next multiple of 10 = 60 · check digit = 2 · actual last digit = 2
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.