Doctor profile · Federal record
Dr. Gregory Zagaja
Urology Physician (CMS: Urology) · Chicago, IL
- NPI 1760547509
- Accepts Medicare
- MIPS 87.7 / 100 · 2023
- 36 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
5841 S Maryland Ave
Chicago, IL 606371443
(888) 824-0200 - Mailing address
-
150 Harvester Dr, Suite 300
Burr Ridge, IL 605275919
Credentials & registration
- NPI registered
- December 2006 — 20 yrs on file
- Profile last updated
- October 24, 2022
- Year of graduation
- 1990 — 36 yrs since
- Specialty taxonomy
- 208800000X — NUCC code
- State license (1)
- Illinois #036089488
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1760547509. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
430
Distinct HCPCS
7
Medicare allowed
$76,321
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 254 | 229 | $69 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 37 | 37 | $88 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 34 | 34 | $150 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 27 | 27 | $191 | |
38571 |
Removal of lymph nodes of both sides of pelvis using an endoscope | 26 | 26 | $370 | |
55866 |
Surgical removal of prostate and surrounding lymph nodes using an endoscope | 26 | 26 | $1,300 | |
99442 |
Telephone medical discussion with physician, 11-20 minutes | 26 | 25 | $69 |
In context: peer comparison
Among 34 peers in Chicago Urology Physician, average services per provider: 113. This provider delivers 3.8× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
61
Patients
28
Total drug cost
$1,950
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Tamsulosin Hcl | Generic | 32 | 16 | $1,294 |
| Finasteride | Generic | 29 | 12 | $656 |
Hospital affiliations
Frequently asked questions
What is Dr. Gregory Zagaja's medical specialty?
Dr. Gregory Zagaja practices Urology Physician in Chicago, IL.
Where does Dr. Gregory Zagaja practice?
Dr. Gregory Zagaja practices at 5841 S Maryland Ave, Chicago, IL 606371443. Office phone: 8888240200.
What is Dr. Gregory Zagaja's NPI?
Dr. Gregory Zagaja's National Provider Identifier (NPI) is 1760547509, issued by NPPES.
Does Dr. Gregory Zagaja accept Medicare assignment?
Yes. Dr. Gregory Zagaja accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gregory Zagaja commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); New patient office or other outpatient visit (HCPCS 99203); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.