Tamyra Janicki, NP
Tamyra Janicki, NP is a Family Nurse Practitioner in Downers Grove, IL, registered under NPI 1003361619.
Getting there
Here is what surrounds this office in Downers Grove, based on OpenStreetMap data collected Sep 21, 2026. Parking is available about 0.21 mi away. There is EV charging 0.36 mi from the office (Downers Grove Supercharger) — useful if you are driving in from out of town. The nearest transit stop is 0.43 mi away, served by Highland & Butterfield. If you arrive early, there is a coffee shop 790 ft away.
Getting here and what is nearby
Restaurant Hooters 177 ft ~1 min
1303 Butterfield Road, Downers Grove 60515
Restaurant Downers Sand Club Sports Bar & Grill 424 ft ~2 min
1211 Butterfield Road, Downers Grove 60515
Su-Th 15:00-01:00; Fr,Sa 15:00-02:00
Transit 3050 Oak Grove Drive 733 ft ~3 min
Parking 723 ft ~3 min
Coffee Starbucks 790 ft ~3 min
Restaurant Honey Jam Cafe 853 ft ~4 min
3000 Oak Grove Drive, Downers Grove 60515
Parking 908 ft ~4 min
Parking 0.21 mi ~5 min
Transit Branding & Finley 0.28 mi ~6 min
Hotel Holiday Inn Express 0.28 mi ~6 min
3031 Finley Road, Downers Grove 60515
EV charging Downers Grove Supercharger 0.36 mi ~8 min
Hotel Chicago Marriott Suites Downers Grove 0.38 mi ~8 min
Hotel Best Western Chicago - Downers Grove 0.39 mi ~8 min
Transit Highland & Butterfield 0.43 mi ~9 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 |
|---|---|---|
| 277000587 | IL | Family Nurse Practitioner primary |
| 209014617 | IL | Family Nurse Practitioner |
This provider holds licence 277000587 issued in IL. 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
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 | |
|---|---|---|---|---|
| 363LF0000X | Family Nurse Practitioner Family | 277000587 | IL | primary |
| 363LF0000X | Family Nurse Practitioner Family | 209014617 | IL |
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 | 1003361619 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Aug 24, 2016 |
| Last updated | Jan 18, 2022 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | NP |
| Practice address |
1315 BUTTERFIELD RD STE 206 Downers Grove, IL 60515 (630) 317-7690 Fax (630) 317-7894 |
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 | 3 | 6 | 1 | 6 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 6 | 2 | 6 | 2 |
Sum = 51 · next multiple of 10 = 60 · check digit = 9 · actual last digit = 9
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.