Maria Calzonzi
Maria Calzonzi is a Family Nurse Practitioner in Chicago, IL, registered under NPI 1003396219.
Getting there
Here is what surrounds this office in Chicago, based on OpenStreetMap data collected Sep 3, 2026. Parking is available about 0.27 mi away at Medical Campus Parking Garage B. There is EV charging 0.24 mi from the office (ChargePoint) — useful if you are driving in from out of town. The nearest transit stop is 513 ft away, served by 59th Street & Drexel. If you arrive early, there is a coffee shop 0.27 mi away.
Getting here and what is nearby
EV charging ChargePoint 287 ft ~2 min
Parking Parking/Materials Management 289 ft ~2 min
5835 South Cottage Grove Avenue, Chicago 60637
Restaurant Panera Bread 360 ft ~2 min
Transit Cottage Grove & 59th Street 479 ft ~2 min
Transit Cottage Grove & 59th Street 504 ft ~2 min
Transit 59th Street & Drexel 513 ft ~2 min
Restaurant Panera Bread 824 ft ~4 min
5721 South Maryland Avenue, Chicago 60637
Mo-Fr 07:00-18:00
Coffee French Press Coffee 918 ft ~4 min
970 East 58th Street, Chicago 60637
mo-fr 08:00-20:00 sa-su 09:00-18:00
Restaurant Burrito Beach 0.21 mi ~5 min
Coffee Grounds of Being 0.24 mi ~5 min
1025 East 58th Street, Chicago 60637
EV charging ChargePoint 0.24 mi ~5 min
Parking Campus South Parking 0.24 mi ~5 min
Coffee Harper Cafe 0.27 mi ~6 min
Parking Medical Campus Parking Garage B 0.27 mi ~6 min
5656 South Maryland Avenue, Chicago 60637
Convenience Midway Market 0.30 mi ~6 min
Grocery Jewel-Osco 0.30 mi ~6 min
6014 South Cottage Grove Avenue, Chicago 60637
Mo-Su 06:00-22:00
Convenience Maroon Market 0.39 mi ~8 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 |
|---|---|---|
| 209017834 | IL | Family Nurse Practitioner primary |
This provider holds licence 209017834 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
- 6305190984
- Enrollment ID
- I20181117000175
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 | 1003396219 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Aug 16, 2018 |
| Last updated | Oct 24, 2022 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Practice address |
5841 S MARYLAND AVE Chicago, IL 60637 (888) 824-0200 |
| Mailing address |
150 HARVESTER DR SUITE 300 Burr Ridge, IL 60527 |
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 | 9 | 6 | 2 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 9 | 3 | 2 | 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.