Margaret Cook
Margaret Cook is a Mental Health Counselor in Chicago, IL, registered under NPI 1003648270. 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 12, 2026. Parking is available about 0.23 mi away at South Parking. There is EV charging 0.22 mi from the office — useful if you are driving in from out of town. The nearest transit stop is 514 ft away, served by Diversey & Seminary. A pharmacy sits 0.41 mi from the entrance (Walgreens), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.22 mi away.
Getting here and what is nearby
Coffee Starbucks 51 ft ~1 min
1002 West Diversey Parkway, Chicago 60614
Sa,Su 05:30-20:00; Mo-Fr 05:00-20:00
Convenience 7-Eleven 149 ft ~1 min
Coffee Zizi's Cafe 205 ft ~1 min
Parking 191 ft ~1 min
Restaurant Nori Sushi Lincoln Park 196 ft ~1 min
Transit Diversey Brown Line Station 275 ft ~2 min
Parking 242 ft ~1 min
Restaurant Potbelly 241 ft ~1 min
959 West Diversey Parkway, Chicago 60614
Restaurant Qdoba 256 ft ~1 min
957 West Diversey Parkway, Chicago 60614
Mo-Sa 10:30-22:00; Su 10:30-20:00
Transit Diversey Brown Line Station 299 ft ~2 min
Transit Diversey & Seminary 514 ft ~2 min
Convenience Circle K 0.21 mi ~5 min
1162 West Diversey Parkway, Chicago 60657
Gas station Shell 0.21 mi ~5 min
1162 West Diversey Parkway, Chicago 60657
Coffee Big Shoulders Coffee 0.22 mi ~5 min
1165 West Diversey Parkway, Chicago 60614
Sa-Su 07:00-17:00; Mo-Fr 06:30-17:00
EV charging 0.22 mi ~5 min
Parking South Parking 0.23 mi ~5 min
931-937 West Wellington Avenue, Chicago 60657
Grocery The Fresh Market 0.24 mi ~5 min
Convenience 7-Eleven 0.26 mi ~6 min
Pharmacy Advocate Pharmacy 0.31 mi ~7 min
Mo-Fr 08:30-18:00
Pharmacy Walgreens 0.31 mi ~7 min
Pharmacy Walgreens 0.41 mi ~9 min
Grocery Trader Joe's 0.41 mi ~9 min
667 West Diversey Parkway, Chicago 60614
Mo-Su 09:00-21:00
Hotel Hotel Versey 0.45 mi ~9 min
Gas station BP 0.47 mi ~10 min
1359 West Diversey Parkway, Chicago 60614
Hotel City Suites Hotel 0.48 mi ~10 min
933 West Belmont Avenue, 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
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
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 Mental Health covers
Definition to come... NUCC Health Care Provider Taxonomy, code 101YM0800X
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 | 1003648270 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Aug 16, 2024 |
| Last updated | Aug 16, 2024 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Practice address |
1000 W DIVERSEY PKWY STE 275 Chicago, IL 60614 (773) 281-7200 |
| Mailing address |
619 FOREST AVE Wilmette, IL 60091 |
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 | 4 | 8 | 2 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 3 | 4 | 7 | 2 | 5 |
Sum = 50 · next multiple of 10 = 50 · check digit = 0 · actual last digit = 0
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.