Provider Profile
Gregory Zagaja
Unclaimed ProfileAbout Gregory Zagaja
Gregory Zagaja is a healthcare provider in Chicago, IL specializing in urology. Medicare claims data shows Gregory provided 362 services to 337 patients. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, new patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more, and established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (888) 824-0200
- Email not available
Practice Locations
5841 S MARYLAND AVE
Chicago, IL 60637
Conditions Commonly Evaluated or Treated
Within Urology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
- Erectile dysfunction
- Kidney stones
- Overactive bladder
- Prostate cancer
- Urinary incontinence in women
- UTI
Bladder and urethra
Kidney and ureter
Male reproductive and sexual health
- Hydrocele
- Male infertility
- Peyronie's disease
- Testicular and scrotal pain
- Testicular cancer
- Testicular torsion
- Testosterone deficiency
- Varicocele
Prostate
Urinary symptoms and infection
- Blood in the urine
- Kidney infection
- Painful urination
- Recurrent urinary tract infections
- Urinary retention
Bladder & Urination
Kidney health
Men's health
Urinary symptoms
Procedures & services
Most searched procedures
Office diagnosis
Bladder procedures
- Artificial Urinary Sphincter Implant
- Bladder Botox Injection
- Bladder instillation therapy
- Radical bladder removal
- Sacral neuromodulation
- Sling surgery for stress incontinence
- Transurethral resection of bladder tumor
Diagnostic imaging
Kidney & ureter procedures
Kidney and ureter surgery
Male reproductive
- Hydrocele repair
- Penile implant surgery
- Surgical correction of penile curvature
- Testicle removal
- Varicocele repair
Prostate
Prostate procedures
- HoLEP Laser Prostate Surgery
- Prostatic urethral lift
- Rezum Water Vapor Therapy
- Transurethral resection of the prostate
Stone procedures
Procedures Most Often Billed to Medicare
362 services · 337 patients · 9 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Surgical removal of prostate and surrounding lymph nodes using an endoscope | Procedure | 55866 |
21 |
| Removal of lymph nodes of both sides of pelvis using an endoscope | Procedure | 38571 |
21 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
218 |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
31 |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
23 |
| Telephone medical discussion with physician, 11-20 minutes | Office visit | 99442 |
15 |
| Telephone medical discussion with physician, 21-30 minutes | Office visit | 99443 |
11 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
11 |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
11 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other urologists in Chicago 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1990 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Surgical removal of prostate and surrounding lymph nodes using an endoscope 8
Providers in IL who bill this service to Medicare most often.
Common questions
What kind of doctor is Gregory Zagaja?
Gregory Zagaja is an urologist in Chicago, IL. That is the designation recorded for this NPI in the federal registry, where it is listed as “Urology”.
NPI registry
What is Gregory Zagaja's address?
Gregory Zagaja is listed at 5841 S Maryland Ave, Chicago, IL 60637. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Gregory Zagaja?
The number on file is (888) 824-0200. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Gregory Zagaja?
Gregory Zagaja's National Provider Identifier is 1760547509. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Gregory Zagaja train?
Gregory Zagaja attended Other, graduating in 1990. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Gregory Zagaja have?
Gregory Zagaja has 36 years experience. Calculated from a graduation year of 1990, reported in the CMS National Downloadable File.
CMS public data
What procedures does Gregory Zagaja perform?
According to Medicare billing data, Gregory Zagaja performs procedures including surgical removal of prostate and surrounding lymph nodes using an endoscope and removal of lymph nodes of both sides of pelvis using an endoscope, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Gregory Zagaja's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Gregory Zagaja. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.