Lauren Ostrowski-winkler, NP
Lauren Ostrowski-winkler, NP is a Family Nurse Practitioner in Portage, IN, registered under NPI 1003224395.
Getting there
Here is what surrounds this office in Portage, based on OpenStreetMap data collected Sep 12, 2026. Parking is available about 1,010 ft away.
Getting here and what is nearby
Parking 582 ft ~3 min
Parking 973 ft ~4 min
Parking 1,010 ft ~4 min
Restaurant Texas Roadhouse 0.30 mi ~6 min
6130 US Highway 6, Portage 46368
Restaurant Culver's 0.30 mi ~6 min
Grocery Walmart Supercenter 0.38 mi ~8 min
Restaurant McDonald's 0.42 mi ~9 min
6075 US Highway 6, Portage 46368
Mo-Tu 05:00-22:00; We 05:30-22:00; Th-Su 05:00-22:00
Gas station Meijer 0.44 mi ~9 min
6050 37th Avenue, Portage 46368
Convenience Meijer Express 0.45 mi ~9 min
6050 37th Avenue, Portage 46368
Grocery Meijer 0.55 mi ~11 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 |
|---|---|---|
| 71005022A | IN | Family Nurse Practitioner primary |
This provider holds licence 71005022A 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 Family covers
Definition to come... NUCC Health Care Provider Taxonomy, code 363LF0000X
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 | 1003224395 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jul 30, 2014 |
| Last updated | Jul 30, 2014 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | NP |
| Practice address |
3564 SCOTTSDALE ST Portage, IN 46368 (219) 763-8112 Fax (219) 764-3251 |
| Mailing address |
PO BOX 1430 Portage, IN 46368 |
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 | 2 | 2 | 4 | 3 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 2 | 8 | 3 | 9 |
Sum = 55 · next multiple of 10 = 60 · check digit = 5 · actual last digit = 5
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.