Aviva Cahn, LCSW
Aviva Cahn, LCSW is a provider specialising in Clinical Social Worker in Chicago, IL, registered under NPI 1003108903. 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 Sep 5, 2026. Parking is available about 0.20 mi away at Wabash-Randolph Parking Garage. There is EV charging 0.23 mi from the office (Tesla Supercharger) — useful if you are driving in from out of town. The nearest transit stop is 257 ft away, served by Michigan & Wacker. A pharmacy sits 0.24 mi from the entrance (CVS Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 446 ft away.
Getting here and what is nearby
Transit Michigan & South Water 25 ft ~1 min
Restaurant Chipotle 51 ft ~1 min
Hotel citizenM Chicago 105 ft ~1 min
80 East Wacker Place, Chicago 60601
Restaurant Egg Tuck 165 ft ~1 min
Hotel Hampton Inn Chicago Downtown/North Loop 219 ft ~1 min
Transit Michigan & South Water 244 ft ~1 min
Transit Michigan & Wacker 257 ft ~1 min
Hotel Pendry Chicago 255 ft ~1 min
230 North Michigan Avenue, Chicago 60601
Restaurant Venteux Brasserie 256 ft ~1 min
224 North Michigan Avenue
Coffee Starbucks 290 ft ~2 min
Coffee Corner Bakery 351 ft ~2 min
Parking Hotel Parking 386 ft ~2 min
57 East Wacker Place, Chicago 60601
Coffee Starbucks 446 ft ~2 min
Convenience 7-Eleven 540 ft ~3 min
Parking 60 East Lake Self Park 512 ft ~2 min
60 East Lake Street, Chicago 60601
Convenience 7-Eleven 568 ft ~3 min
Grocery Bockwinkel's 720 ft ~3 min
222 North Columbus Drive, Chicago 60601
Mo-Su 08:00-23:00
Pharmacy Walgreens 963 ft ~4 min
Parking Wabash-Randolph Parking Garage 0.20 mi ~4 min
20-32 East Randolph Street, Chicago 60601
Pharmacy Walgreens 0.22 mi ~5 min
EV charging Tesla Supercharger 0.23 mi ~5 min
Convenience North Loop Market 0.24 mi ~5 min
Mo-Th 07:00-22:00; Fr 07:00-23:00; Sa 08:00-23:00; Su 08:00-22:00
Pharmacy CVS Pharmacy 0.24 mi ~5 min
Grocery Mariano's Fresh Market 0.32 mi ~7 min
Grocery Whole Foods Market 0.37 mi ~8 min
255 East Grand Avenue, Chicago 60611
Mo-Su 08:00-22:00
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 |
|---|---|---|
| 149006633 | IL | Clinical Social Worker primary |
This provider holds licence 149006633 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 - Clinical Social Worker
- PAC ID
- 5193056943
- Enrollment ID
- I20191009003246
Medicare enrolment is recorded as approved under the provider type Practitioner - Clinical Social Worker. 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 Clinical covers
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances. NUCC Health Care Provider Taxonomy, code 1041C0700X
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 | 1003108903 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 10, 2011 |
| Last updated | May 10, 2011 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | LCSW |
| Practice address |
333 N MICHIGAN AVE SUITE 1801 Chicago, IL 60601 (773) 301-8576 |
| Mailing address |
3200 N LAKE SHORE DR APARTMENT 2704 Chicago, IL 60657 |
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 | 1 | 0 | 8 | 9 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 0 | 7 | 9 | 0 |
Sum = 47 · next multiple of 10 = 50 · check digit = 3 · actual last digit = 3
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.