GREGORY ZAGAJA
NPI 1760547509
Urology in Chicago, IL

NPI Status: Active since December 22, 2006

Contact Information

5841 S MARYLAND AVE
CHICAGO, IL
ZIP 60637
Phone: (888) 824-0200

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  • Individual
  • Male
  • Years of Experience 36
  • Urology
  • Accepts Insurance
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About GREGORY ZAGAJA

This page provides the complete NPI Profile along with additional information for Gregory Zagaja, a provider established in Chicago, Illinois with a medical specialization in Urology and more than 36 years of experience. The healthcare provider is registered in the NPI registry with number 1760547509 assigned on December 2006. The practitioner's primary taxonomy code is 208800000X with license number 036089488 (IL). The provider is registered as an individual and his NPI record was last updated 3 years ago.

NPI
1760547509
Provider Name
GREGORY ZAGAJA
Gender
Male
Entity Type
Individual
Location Address
5841 S MARYLAND AVE CHICAGO, IL 60637
Location Phone
(888) 824-0200
Mailing Address
150 HARVESTER DR SUITE 300 BURR RIDGE, IL 60527
Medical School Name
OTHER
Graduation Year
1990
Is Sole Proprietor?
No
Enumeration Date
12-22-2006
Last Update Date
10-24-2022
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Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Urology

Taxonomy Code
208800000X
Type
Allopathic & Osteopathic Physicians
License No.
036089488
License State
IL
Taxonomy Description
A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

  • Gold S: Aetna network + $0 MinuteClinic + $0 CVS Health Virtual Primary Care + Rx Copay - PPO
  • Silver S: Aetna network + $0 MinuteClinic + $0 CVS Health Virtual Primary Care - PPO
  • Bronze Classic Standard (Choice) - HMO
  • Gold Classic Standard (Choice) - HMO
  • Secure (Choice) - HMO
  • Silver Classic Standard (Choice) - HMO
  • Silver Simple Diabetes (Choice) - HMO

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Medicare Participation & PECOS Enrollment Status

Gregory Zagaja is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Gregory Zagaja is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 1254350754

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20051114001079

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Established patient office or other outpatient visit, 10-19 minutes

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

This service was performed 20 times for 20 patients

Established patient office or other outpatient visit, 20-29 minutes

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

This service was performed 239 times for 217 patients

Established patient office or other outpatient visit, 30-39 minutes

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

This service was performed 22 times for 20 patients

Established patient office or other outpatient visit, 40-54 minutes

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

This service was performed 27 times for 27 patients

Hernia repair (minimally invasive)

Hernia repair is a surgery to fix a hernia - a condition where an organ pushes through an opening in the muscle or tissue that holds it in place. Minimally invasive hernia repair involves small incisions, a tiny camera, and special surgical tools. This method often leads to quicker recovery, less pain, and reduced scarring compared to traditional surgery.

This service was performed for 1-10 patients

New patient office or other outpatient visit, 30-44 minutes

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

This service was performed 19 times for 19 patients

New patient office or other outpatient visit, 60-74 minutes

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

This service was performed 24 times for 24 patients

Prostate resection

Prostate resection is a procedure performed to alleviate discomfort caused by an enlarged prostate. This involves removing a portion of the prostate gland to ease pressure on the urinary tract, improving urine flow and reducing symptoms. It's performed under general or spinal anesthesia.

This service was performed for 45 patients

Removal of lymph nodes of both sides of pelvis using an endoscope

This procedure involves using a small camera (endoscope) to view and remove lymph nodes from both sides of your lower torso. Lymph nodes help filter harmful substances from the body. The procedure is done to prevent the spread of certain conditions.

This service was performed 36 times for 36 patients

Surgical removal of prostate and surrounding lymph nodes using an endoscope

This is a minimally invasive procedure where a small camera (endoscope) is used to remove a gland located in the lower body and nearby small filtering structures. It's done to prevent the spread of unwanted cells and improve overall health.

This service was performed 36 times for 36 patients

Telephone medical discussion with physician, 11-20 minutes

This is a service where you have a phone conversation with your doctor for 11-20 minutes. It's used for discussing health concerns, reviewing test results, or managing ongoing conditions. It's a convenient way to receive medical advice without an in-person visit.

This service was performed 33 times for 30 patients

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $34.71 for a new patient copayment and $18.7 for an established patient copayment.

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 60637 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99204

  • Average New Patient Price $138.86
  • Minimum New Patient Price $60.08
  • Maximum New Patient Price $183.39
  • Average New Patient Copayment $34.71
  • Minimum New Patient Copayment $15.02
  • Maximum New Patient Copayment $45.84

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99213

  • Average Established Patient Price $74.8
  • Minimum Established Patient Price $18.97
  • Maximum Established Patient Price $148.12
  • Average Established Patient Copayment $18.7
  • Minimum Established Patient Copayment $4.74
  • Maximum Established Patient Copayment $37.03

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

Find Provider Hospital Affiliations - Privileges

Doctors and physicians must apply for hospital privileges to treat patients at hospitals. Find out if your doctor has privileges to practice at your preferred hospital by using the hospital affiliation information below based on recent medical claims.

Hospital affiliation is identified through self-reporting data, inpatient, outpatient, physician and ancillary service claims linked by the medical claims NPI number and place of service code. Additionally, to further determine provider hospital affiliation the clinician must have provided services to at least three patients on three different dates in the last 12 months. Gregory Zagaja is affiliated with the following medical facilities:

Hospital Name Address Phone Hospital Type Overall Rating
THE UNIVERSITY OF CHICAGO MEDICAL CENTER5841 SOUTH MARYLAND
CHICAGO, IL 60637
(773) 702-1000Acute Care Hospitals

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NPI Validation Check Digit Calculation


The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.

Start with the original NPI number, the last digit is the check digit and is not used in the calculation.
1760547509
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
271201041450
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 7 + 1 + 2 + 0 + 1 + 0 + 4 + 1 + 4 + 5 + 0 + 24 = 51
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
60 - 51 = 99

The NPI number 1760547509 is valid because the calculated check digit 9 using the Luhn validation algorithm matches the last digit of the original NPI number.

Other Providers at the Same Location


The following 20 providers are registered at the same or nearby location.

NPI Name / Type Taxonomy Address
1275527848DR. ADAM BUCHANAN COCHRANE PHARM.D., BCPS
Individual
Pharmacist (Pharmacotherapy)5841 S MARYLAND AVE MC 5026
CHICAGO, IL 60637
(773) 702-3583
1609861848MRS. VINAY KUMARI GARG
Individual
Dietitian, Registered5841 S MARYLAND AVE
CHICAGO, IL 60637
(773) 702-8165
1275528499 THOMAS L FISHER JR. MD., M.P.H
Individual
Emergency Medicine5841 S MARYLAND AVE
CHICAGO, IL 60637
(773) 702-9501
1649261546 LINDA MARIE NAHLIK R.PH.
Individual
Pharmacist (Pharmacotherapy)5841 S MARYLAND AVE UNIVERSITY OF CHICAGO HOSPITALS
CHICAGO, IL 60637
(773) 834-2017
1396723391 HEATHER M MACLEOD MS
Individual
Genetic Counselor, MS5841 S MARYLAND AVE MC 6088
CHICAGO, IL 60637
(773) 702-4310
1558333807 RACHELLE J LORENZ M.S.
Individual
Genetic Counselor, MS5841 S MARYLAND AVE MC 0077
CHICAGO, IL 60637
(773) 834-9801
1568426658DR. MARCO G. PATTI MD
Individual
Surgery5841 S MARYLAND AVE MC 5031
CHICAGO, IL 60637
(773) 702-4865
1346292380 TRISHA RABIDOUX RD, LDN
Individual
Dietitian, Registered5841 S MARYLAND AVE MC 0988
CHICAGO, IL 60637
(773) 702-3867
1336193671DR. REBECCA LYNN BROWN M.D.
Individual
Internal Medicine (Endocrinology, Diabetes & Metabolism)5841 S MARYLAND AVE MC1027
CHICAGO, IL 60637
(773) 702-1000
1205883444DR. JERRY KRISHNAN M.D., PHD.
Individual
Internal Medicine (Pulmonary Disease)5841 S MARYLAND AVE
CHICAGO, IL 60637
(773) 702-2274
1932145802DR. MARION S. VERP M.D.
Individual
Obstetrics & Gynecology (Gynecology)5841 S MARYLAND AVE MC2050
CHICAGO, IL 60637
(773) 702-6127
1609802107DR. BASHARAT BUCHH MD
Individual
Pediatrics (Neonatal-Perinatal Medicine)5841 S MARYLAND AVE MC 6060
CHICAGO, IL 60637
(773) 702-6210
1336178763DR. ARTHUR FRANCIS HANEY MD
Individual
Obstetrics & Gynecology (Reproductive Endocrinology)5841 S MARYLAND AVE MC2050
CHICAGO, IL 60637
(773) 702-9200
1881625697 KEME HEAVEN CARTER M.D.
Individual
Emergency Medicine5841 S MARYLAND AVE MC 5068
CHICAGO, IL 60637
(773) 702-9500
1043241839 MARY KRYSTOFIAK RUSSELL RD
Individual
Dietitian, Registered5841 S MARYLAND AVE MC 0988
CHICAGO, IL 60637
(773) 770-2150
1952334781DR. LISA M SHAH M.D.
Individual
Internal Medicine5841 S MARYLAND AVE
CHICAGO, IL 60637
(773) 702-1000
1245263383 ANNETTE C BOOGERD
Individual
Dietitian, Registered5841 S MARYLAND AVE MC 3051
CHICAGO, IL 60637
(773) 702-5013
1962435263MRS. EMILY NICOLE LISCIANDRO MS, RD, LDN
Individual
Dietitian, Registered (Nutrition, Pediatric)5841 S MARYLAND AVE MC0988
CHICAGO, IL 60637
(773) 702-0551
1104843788 SEEMA S LIMAYE MD
Individual
Internal Medicine5841 S MARYLAND AVE DEPARTMENT OF MEDICINE, (MC6098)
CHICAGO, IL 60637
(773) 702-6459
1588682330 CONSTANCE N DROSSOS PH.D.
Individual
Psychologist (Clinical)5841 S MARYLAND AVE STE MC 3077
CHICAGO, IL 60637
(773) 702-2995

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1760547509, enumerated in the NPI registry as an "individual" on December 22, 2006

The provider is located at 5841 S Maryland Ave Chicago, Il 60637 and the phone number is (888) 824-0200

The provider's speciality is Urology with taxonomy code 208800000X

The provider has more than 36 years of experience.

The provider might be accepting Accepts: Aetna CVS Health and Oscar Health Plan, Inc.. Please consult your insurance carrier or call the provider to make sure your health plan is currently accepted.

Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary the provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

Medicare beneficiaries should expect a typical cost of $138.86 with an average copayment of $34.71 for new patient appointments. Established patients should expect a typical charge of $74.8 and an average copayment of 18.7. Please review your insurance plan or contact the provider directly to determine your specific costs.

The most common procedures or services performed by this practitioner are: Established patient office or other outpatient visit, 10-19 minutes, Established patient office or other outpatient visit, 20-29 minutes, Established patient office or other outpatient visit, 30-39 minutes, Established patient office or other outpatient visit, 40-54 minutes, Hernia repair (minimally invasive), New patient office or other outpatient visit, 30-44 minutes, New patient office or other outpatient visit, 60-74 minutes, Prostate resection, Removal of lymph nodes of both sides of pelvis using an endoscope, Surgical removal of prostate and surrounding lymph nodes using an endoscope and Telephone medical discussion with physician, 11-20 minutes.

The practitioner is affiliated to the following hospital(s): THE UNIVERSITY OF CHICAGO MEDICAL CENTER. Hospital affiliations are identified through self-reporting data and service claims based on the place of service.

This NPI record was last updated on December 22, 2006. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
NPI Profile data is regularly updated with the latest NPI registry information, if you would like to update or remove your NPI Profile in this website please contact us.