Aaron Kallsnick, M.D.
Aaron Kallsnick, M.D. is an Anesthesiology Physician in Chicago, IL, registered under NPI 1003011966.
Getting there
Here is what surrounds this office in Chicago, based on OpenStreetMap data collected Aug 29, 2026. Parking is available about 0.33 mi away. The nearest transit stop is 369 ft away, served by Central & Addison. A pharmacy sits 0.39 mi from the entrance (Walgreens), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.40 mi away.
Getting here and what is nearby
Transit Addison & Central 256 ft ~1 min
Parking Community First Health Center Parking Garage 266 ft ~2 min
5616-5652 West Addison Street, Chicago 60634
Transit Addison & Major 351 ft ~2 min
Transit Central & Addison 369 ft ~2 min
Pharmacy CVS Pharmacy 568 ft ~3 min
Parking 946 ft ~4 min
Parking 0.33 mi ~7 min
Pharmacy Walgreens 0.39 mi ~8 min
Coffee Mather’s More Than a Cafe 0.40 mi ~9 min
Restaurant Dunkin' 0.45 mi ~10 min
6001 West Addison Street, Chicago 60634
Mo-Sa 04:00-23:00; Su 05:00-23:00
Grocery Tony's Fresh Market 0.45 mi ~10 min
Convenience BP Shop 0.46 mi ~10 min
6014 West Addison Street, Chicago 60634
Gas station BP 0.46 mi ~10 min
6000 West Addison Street, Chicago 60634
Restaurant Bluebird Portage Park 0.49 mi ~10 min
Convenience Marathon 0.50 mi ~10 min
5800 West Belmont Avenue, Chicago 60634
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 |
|---|---|---|
| 036.127038 | IL | Anesthesiology Physician |
| 64206 | WI | Anesthesiology Physician primary |
Licences are recorded in 2 states: IL, WI. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
- Status
- Approved
- Provider type
- Practitioner - Anesthesiology
- PAC ID
- 3577656487
Enrolled in Medicare 2 times, across 2 states:
| State | Enrollment ID | Provider type |
|---|---|---|
| Illinois | I20110907001127 | Practitioner - Anesthesiology |
| Wisconsin | I20150820011577 | Practitioner - Anesthesiology |
Medicare enrolment is recorded as approved under the provider type Practitioner - Anesthesiology. There are 2 separate enrolment records across 2 states (IL, WI). Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. 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.
Licensed in 2 states
This provider holds licences in 2 states: Illinois and Wisconsin. The practice address on file is in Chicago, IL, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.
- Licence
- 036.127038
- Specialty
- Anesthesiology Physician
Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.
What Anesthesiology covers
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery. NUCC Health Care Provider Taxonomy, code 207L00000X
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 | |
|---|---|---|---|---|
| 207L00000X | Anesthesiology Physician | 036.127038 | IL | |
| 207L00000X | Anesthesiology Physician | 64206 | WI | primary |
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 | 1003011966 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jun 19, 2007 |
| Last updated | Jul 15, 2022 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | M.D. |
| Practice address |
5645 W ADDISON ST Chicago, IL 60634 (773) 282-7000 |
| Mailing address |
1301 W 22ND ST #610 Oak Brook, IL 60523 |
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 | 0 | 1 | 1 | 9 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 1 | 2 | 9 | 3 |
Sum = 44 · next multiple of 10 = 50 · check digit = 6 · actual last digit = 6
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.