Stacy Ervin, APN
Stacy Ervin, APN is a Family Nurse Practitioner in Chicago, IL, registered under NPI 1003231689.
Getting there
Here is what surrounds this office in Chicago, based on OpenStreetMap data collected Sep 13, 2026. Parking is available about 0.26 mi away at North Bridge Self Park. There is EV charging 0.26 mi from the office (Tesla Supercharger) — useful if you are driving in from out of town. The nearest transit stop is 436 ft away, served by Wacker (Upper) & Stetson. A pharmacy sits 0.29 mi from the entrance (Walgreens), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 693 ft away.
Getting here and what is nearby
Transit Michigan & Hubbard (Tribune Building) 270 ft ~2 min
Transit Michigan & Hubbard (Wrigley Building) 292 ft ~2 min
Coffee Peet's Coffee 355 ft ~2 min
Pharmacy Walgreens 354 ft ~2 min
Transit Wacker (Upper) & Stetson 436 ft ~2 min
Coffee Starbucks 586 ft ~3 min
Restaurant The Purple Pig 567 ft ~3 min
444 North Michigan Avenue, Chicago 60611
Mo-Su 11:00-22:00
Restaurant 437 Rush 568 ft ~3 min
437 North Rush Street, Chicago 60611
Restaurant Beacon Tavern 589 ft ~3 min
405 North Wabash Avenue, Chicago 60611
Mo-We 11:00-22:00; Th-Fr 11:00-23:00; Sa 10:00-23:00; Su 10:00-22:00
Coffee Corner Bakery 693 ft ~3 min
Hotel InterContinental Chicago Hotel 703 ft ~3 min
Hotel London House Chicago 778 ft ~3 min
Hotel Hyatt Regency Chicago 785 ft ~3 min
Parking State-Kinzie-Wabash Self Park 0.20 mi ~4 min
401 North State Street, Chicago 60611
Convenience 7-Eleven 0.21 mi ~5 min
Grocery Bockwinkel's 0.21 mi ~5 min
222 North Columbus Drive, Chicago 60601
Mo-Su 08:00-23:00
Grocery Whole Foods Market 0.22 mi ~5 min
255 East Grand Avenue, Chicago 60611
Mo-Su 08:00-22:00
Parking Hotel Parking 0.23 mi ~5 min
57 East South Water Street, 60601
Convenience 7-Eleven 0.24 mi ~5 min
Convenience 7-Eleven 0.24 mi ~5 min
418 North State Street, Chicago 60654
Su-Th 07:00-24:00, Fr,Sa 07:00-02:00
EV charging Tesla Supercharger 0.26 mi ~6 min
Parking North Bridge Self Park 0.26 mi ~6 min
10 East Grand Avenue, Chicago 60611
Pharmacy CVS Pharmacy 0.27 mi ~6 min
Pharmacy Walgreens 0.29 mi ~6 min
Grocery Trader Joe's 0.31 mi ~7 min
44 East Ontario Street, Chicago 60611
Mo-Su 08:00-21:00
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 |
|---|---|---|
| 209011244 | IL | Family Nurse Practitioner primary |
This provider holds licence 209011244 issued in IL. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Nurse Practitioner
- PAC ID
- 3375775760
- Enrollment ID
- I20140417001678
Medicare enrolment is recorded as approved under the provider type Practitioner - Nurse Practitioner. 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 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 | 1003231689 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Feb 19, 2014 |
| Last updated | Feb 19, 2014 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | APN |
| Practice address |
401 N MICHIGAN AVE Chicago, IL 60611 (866) 825-3227 |
| Mailing address |
161 WASHINGTON ST FL 14 EIGHT TOWER BRIDGE, SUITE 1400 Conshohocken, PA 19428 |
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 | 3 | 1 | 6 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 3 | 2 | 6 | 7 |
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.