Nia Marshall
Nia Marshall is a provider specialising in General Practice Dentistry in Chicago, IL, registered under NPI 1003668252. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty. 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 Chicago, based on OpenStreetMap data collected Oct 2, 2026. Parking is available about 809 ft away at South Parking. There is EV charging 0.27 mi from the office (Tesla Supercharger) — useful if you are driving in from out of town. The nearest transit stop is 459 ft away, served by Clark & Wellington. A pharmacy sits 0.23 mi from the entrance (Walgreens), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 934 ft away.
Getting here and what is nearby
Transit Halsted & Wellington 179 ft ~1 min
Parking 204 ft ~1 min
Transit Halsted & Wellington 248 ft ~1 min
Parking Halsted Garage 258 ft ~1 min
Transit Clark & Wellington 459 ft ~2 min
Coffee Courtyard Café 485 ft ~2 min
Coffee Peet's Coffee 535 ft ~3 min
Pharmacy Advocate Pharmacy 511 ft ~2 min
Mo-Fr 08:30-18:00
Restaurant Clark Street Dog 512 ft ~2 min
3030 North Clark Street, Chicago 60657
Mo-Th,Su 10:30-24:00; Fr-Sa 10:30-02:00
Restaurant Rendezvous Café 538 ft ~3 min
06:30-10:30,11:00-14:30,16:30-18:30
Restaurant Sandwich Me In 568 ft ~3 min
Pharmacy Walgreens 638 ft ~3 min
Parking South Parking 809 ft ~4 min
931-937 West Wellington Avenue, Chicago 60657
Coffee Ecos Café 934 ft ~4 min
Pharmacy Walgreens 0.23 mi ~5 min
Grocery The Fresh Market 0.25 mi ~5 min
EV charging Tesla Supercharger 0.27 mi ~6 min
Grocery Mariano's Fresh Market 0.27 mi ~6 min
Grocery Apple Bite Liquor 0.29 mi ~6 min
2919 North Broadway, Chicago 60657
Mo-Th 10:00-23:00, Fr,Sa 10:00-01:00, Su 11:00-23:00
Hotel Hotel Versey 0.30 mi ~7 min
Hotel City Suites Hotel 0.30 mi ~7 min
933 West Belmont Avenue, Chicago 60657
Convenience 7-Eleven 0.31 mi ~7 min
Hotel The Willows 0.35 mi ~7 min
555 West Surf Street, Chicago 60657
Convenience 7-Eleven 0.49 mi ~10 min
Convenience Circle K 0.50 mi ~10 min
1162 West Diversey Parkway, Chicago 60657
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 |
|---|---|---|
| 019.035200 | IL | General Practice Dentistry primary |
This provider holds licence 019.035200 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 - Dentist
- PAC ID
- 0446779177
- Enrollment ID
- I20250527002507
Medicare enrolment is recorded as approved under the provider type Practitioner - Dentist. 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 General Practice covers
A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs. NUCC Health Care Provider Taxonomy, code 1223G0001X
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 | |
|---|---|---|---|---|
| 1223G0001X | General Practice Dentistry General Practice | 019.035200 | IL | primary |
| 390200000X | Student in an Organized Health Care Education/Training Program | — | — |
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 | 1003668252 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 2, 2024 |
| Last updated | Jun 18, 2024 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Practice address |
811 W WELLINGTON AVE Chicago, IL 60657 (773) 871-2188 Fax (773) 871-6353 |
| Mailing address |
1857 DUNELLON DR Lyndhurst, OH 44124 |
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 | 6 | 6 | 8 | 2 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 3 | 6 | 7 | 2 | 1 |
Sum = 48 · next multiple of 10 = 50 · 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.