Doctor profile · Federal record
Dr. Margaret Zielinski, M.D.
Emergency Medicine Physician (CMS: Emergency Medicine) · Chicago, IL
- NPI 1326467598
- Accepts Medicare
- 12 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
2320 E 93Rd St
Chicago, IL 606173909
(773) 967-2000 - Additional location
-
475 Seaview Ave
Staten Island, NY 103053436
(718) 226-9000
Credentials & registration
- NPI registered
- April 2014 — 12 yrs on file
- Profile last updated
- March 17, 2018
- Year of graduation
- 2014 — 12 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- Illinois #036.142365
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1326467598. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
373
Distinct HCPCS
5
Medicare allowed
$65,221
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 192 | 183 | $205 | |
99284 |
Emergency department visit with moderate level of medical decision making | 90 | 87 | $140 | |
99283 |
Emergency department visit with low level of medical decision making | 52 | 41 | $84 | |
99291 |
Critical care, first 30-74 minutes | 23 | 23 | $247 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 16 | 16 | $199 |
In context: peer comparison
Among 334 peers in this city , average services per provider: 87. This provider delivers 4.3× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
28
Patients
27
Total drug cost
$127
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Ciprofloxacin Hcl | Generic | 14 | 13 | $104 |
| Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) | Brand | 14 | 14 | $23 |
Hospital affiliations
Frequently asked questions
What is Dr. Margaret Zielinski's medical specialty?
Dr. Margaret Zielinski practices Emergency Medicine Physician in Chicago, IL.
Where does Dr. Margaret Zielinski practice?
Dr. Margaret Zielinski practices at 2320 E 93Rd St, Chicago, IL 606173909. Office phone: 7739672000.
What is Dr. Margaret Zielinski's NPI?
Dr. Margaret Zielinski's National Provider Identifier (NPI) is 1326467598, issued by NPPES.
Does Dr. Margaret Zielinski accept Medicare assignment?
Yes. Dr. Margaret Zielinski accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Margaret Zielinski commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284); Emergency department visit with low level of medical decision making (HCPCS 99283). Source: CMS Medicare Physician & Other Practitioners file.