Medicare Enrolled
Dr. Gregg Zimmerman, MD
Urology Physician · Denville, NJ
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
Low-engagement
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating.
This page presents federal public records about Dr. Zimmerman from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
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What this data tells you about Dr. Zimmerman
Dr. Gregg Zimmerman is an urology physician in Denville, NJ, with 20 years of NPI registration. Based on federal Medicare data, Dr. Zimmerman performed 6,833 Medicare services across 3,447 unique beneficiaries.
Between the years covered by Open Payments, Dr. Zimmerman received a total of $8,328 from 64 pharmaceutical and/or device companies across 334 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in urology physician. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Zimmerman is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
✓ 20 years in practice
▲ Top 18% volume in NJ
$8,328 industry payments
Medicare Practice Summary
Medicare Utilization ↗6,833
Medicare services
Top 18% in NJ for urology physician
3,447
Unique beneficiaries
$43
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~342 Medicare services per year of practice
Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Botox injection, per unit An injection of onabotulinumtoxinA, a medication used to temporarily relax muscles or reduce gland activity. The dose is measured in units, with this code representing a single unit administered. |
1,800 | $5 | $19 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
1,435 | $100 | $421 |
| Automated urinalysis An automated laboratory test performed on a urine sample to analyze its chemical and physical properties. The procedure uses machinery to detect various substances and cells within the urine. |
1,394 | $2 | $7 |
| Bladder ultrasound after voiding An ultrasound scan performed after urination to measure the amount of urine remaining in the bladder. |
980 | $9 | $53 |
| Electronic assessment of bladder emptying A test that uses electronic monitoring to evaluate how well the bladder empties urine. |
345 | $11 | $95 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
158 | $130 | $556 |
| Office visit, established patient, complex (40-54 min) An office or outpatient visit for an existing patient lasting between 40 and 54 minutes. This level of service is determined by the total time spent on the date of the encounter. |
115 | $147 | $582 |
| Cystourethroscopy A diagnostic exam of the bladder and urethra using an endoscope to visually inspect the urinary tract. |
104 | $211 | $820 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
94 | $73 | $295 |
| Leuprolide acetate (for depot suspension), 7.5 mg | 81 | $136 | $547 |
| Telephone medical discussion, 21-30 minutes A telephone conversation with a physician lasting between 21 and 30 minutes. This code covers the time spent discussing medical matters over the phone. |
40 | $92 | $402 |
| Hospital follow-up visit, moderate complexity Follow-up hospital visit for an existing patient involving moderate medical decision making. The visit requires at least 35 minutes of time spent on the date of service. |
33 | $66 | $256 |
| Imaging guidance for procedure, 60 minutes or less Use of imaging technology to guide a medical procedure. This service lasts 60 minutes or less. |
31 | $13 | $152 |
| Subcutaneous or intramuscular chemotherapy injection This procedure involves administering anti-cancer hormonal medication through an injection into the tissue under the skin or into a muscle. |
26 | $29 | $119 |
| Prostate gland biopsy A procedure to remove small samples of tissue from the prostate gland for laboratory examination. |
21 | $104 | $1,496 |
| Transrectal ultrasound of the pelvis An ultrasound imaging procedure where a probe is inserted into the rectum to visualize pelvic structures. |
20 | $27 | $553 |
| Urethral dilation using endoscope A procedure to widen the urethra using a thin, lighted tube called an endoscope. This helps to open a narrowed urethral passage. |
19 | $279 | $1,824 |
| Cystoscopy with chemical ablation of bladder A procedure where a camera is used to examine the bladder and a chemical agent is applied to destroy abnormal tissue. |
16 | $330 | $2,131 |
| New patient office visit, complex (60-74 min) | 16 | $170 | $728 |
| Limited ultrasound of pelvis A focused ultrasound exam of the pelvic area to evaluate specific structures. This procedure provides images of the pelvis to assist in medical assessment. |
15 | $35 | $246 |
| Hospital follow-up visit, high complexity Subsequent hospital inpatient or observation care for an existing patient involving high-level medical decision making, with at least 50 minutes total time on the date of the encounter. |
15 | $95 | $389 |
| Shock wave crushing of kidney stones A procedure that uses shock waves to break kidney stones into smaller pieces so they can pass more easily from the body. |
14 | $492 | $2,502 |
| Office visit, established patient (10-19 min) An office visit for an existing patient lasting 10 to 19 minutes. The visit involves medical evaluation and management of the patient's condition. |
14 | $50 | $189 |
| Surgical removal of prostate and lymph nodes This procedure involves the surgical removal of the prostate gland and surrounding lymph nodes using an endoscope. |
12 | $704 | $8,714 |
| Initial hospital admission, moderate complexity Initial hospital inpatient or observation care for a new patient involving moderate-level medical decision making, with at least 55 minutes total time on the date of the encounter. |
12 | $111 | $428 |
| Initial hospital admission, high complexity Initial hospital inpatient or observation care for a new patient involving high-level medical decision making, with at least 75 minutes total time on the date of the encounter. |
12 | $148 | $584 |
| Endoscopic removal of foreign body, stone, or stent from urethra or bladder A procedure to remove a foreign object, stone, or stent from the urethra or bladder using an endoscope. The endoscope is a thin tube with a camera inserted into the urinary tract to locate and extract the item. |
11 | $289 | $1,108 |
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. A higher procedure volume generally indicates more experience with that procedure.
0.4% high complexity
42.3% medium
57.3% routine
Industry Payment Transparency
Open Payments through 2024 ↗$8,328
Total received (2018-2024)
Avg $1,190/year across 7 years
Top 16% in NJ for urology physician
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
64
Companies
334
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →
Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$8,249 (99.1%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$79 (0.9%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$1,828
2023
$2,733
2022
$978
2021
$978
2020
$198
2019
$691
2018
$921
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Janssen Biotech, Inc.
$325
PFIZER INC.
$209
UROGEN PHARMA, INC.
$177
Bayer Healthcare Pharmaceuticals Inc.
$163
ABBVIE INC.
$121
Sumitomo Pharma America, Inc.
$116
Ferring Pharmaceuticals Inc.
$105
SUN PHARMACEUTICAL INDUSTRIES INC.
$95
180 Medical, Inc.
$66
Novartis Pharmaceuticals Corporation
$60
IMMUNITYBIO, INC.
$52
Merck Sharp & Dohme LLC
$50
AstraZeneca Pharmaceuticals LP
$50
Becton, Dickinson and Company
$48
Myriad Genetic Laboratories, Inc.
$43
Telix Pharmaceuticals
$31
Cycle Pharmaceuticals Inc
$22
Cook Medical LLC
$19
Boston Scientific Corporation
$17
Laborie Medical Technologies Corp.
$17
Endo Pharmaceuticals Inc.
$16
Calyxo, Inc.
$16
BLUEWIND MEDICAL
$14
Top 3 companies account for 38.9% of 2024 payments
All-time payments by company (2018-2024) ›
Intuitive Surgical, Inc.
$1,058
Astellas Pharma US Inc
$661
Janssen Biotech, Inc.
$659
PFIZER INC.
$446
Boston Scientific Corporation
$328
Myriad Genetic Laboratories, Inc.
$327
DAVOL INC.
$283
Bayer Healthcare Pharmaceuticals Inc.
$274
Sumitomo Pharma America, Inc.
$269
180 Medical, Inc.
$238
PROCEPT BioRobotics Corporation
$237
Davol Inc.
$222
UROGEN PHARMA, INC.
$177
AbbVie Inc.
$165
Merck Sharp & Dohme LLC
$163
BOSTON SCIENTIFIC CORPORATION
$162
Progenics Pharmaceuticals, Inc.
$143
Ferring Pharmaceuticals Inc.
$142
Merck Sharp & Dohme Corporation
$139
UROVANT SCIENCES INC
$131
AstraZeneca Pharmaceuticals LP
$124
Axonics, Inc.
$122
ABBVIE INC.
$121
TOLMAR Pharmaceuticals, Inc.
$117
Endo Pharmaceuticals Inc.
$107
Telix Pharmaceuticals
$105
Getinge USA Sales, LLC
$103
Bayer HealthCare Pharmaceuticals Inc.
$95
SUN PHARMACEUTICAL INDUSTRIES INC.
$95
Myovant Sciences Inc.
$88
Allergan Inc.
$72
Dendreon Pharmaceuticals LLC
$71
Ambu Inc.
$65
Novartis Pharmaceuticals Corporation
$60
Agiliti Surgical, Inc.
$52
IMMUNITYBIO, INC.
$52
Becton, Dickinson and Company
$48
Avadel Specialty Pharmaceuticals, LLC
$42
Ethicon US, LLC
$42
AbbVie, Inc.
$39
Sun Pharmaceutical Industries Inc.
$36
Integra LifeSciences Corporation
$32
Antares Pharma, Inc.
$32
Allergan, Inc.
$28
Medtronic, Inc.
$27
AMAG Pharmaceuticals, Inc.
$26
Blue Earth Diagnostics Limited
$25
Foundation Medicine, Inc.
$24
NeoTract Inc.
$23
Cycle Pharmaceuticals Inc
$22
Olympus America Inc.
$21
Cook Medical LLC
$19
Laborie Medical Technologies Corp.
$17
Tolmar, Inc.
$16
Calyxo, Inc.
$16
UroGen Pharma, Inc.
$16
Kowa Pharmaceuticals America, Inc.
$15
Acerus Pharmaceuticals Corporation
$15
Clarus Therapeutics Inc.
$14
BLUEWIND MEDICAL
$14
Metuchen Pharmaceuticals
$12
GENZYME CORPORATION
$12
DENTSPLY IH Inc.
$11
Mission Pharmacal Company
$11
Top 3 companies account for 28.6% of all-time payments
Associated products mentioned in payments ›
ADSTILADRIN · AMS 700 · ANKTIVA · AQUABEAM ROBOTIC SYSTEM · ARISTA AH · ARISTA AH FLEXITIP · AVEED · Androgel · AquaBeam Robotic System · Axonics · Axumin · BALVERSA · BOTOX · BOTOX THERAPEUTIC · Bulkamid · CLENPIQ · COOK · CVAC ASPIRATION SYSTEM · Channel Drain · Da Vinci Surgical System · ELIGARD · ERLEADA · Erleada · GEMTESA · GENERAL KIDNEY STONE DISEASE · GENERAL BPH · GENERAL THERAPIES · GREENLIGHT · General - Erectile Dysfunction · ILLUCCIX · INTERSTIM · INTRAROSA · JATENZO · JELMYTO · JEVTANA · KEYTRUDA · LUPRON DEPOT · LYNPARZA · LoFric · MYRBETRIQ · Maquet PowerLED II · Myrbetriq · NOCDURNA · Natesto · Noctiva · Nubeqa · ORGOVYX · Optilume BPH Drug Coated Balloon Catheter · PHASIX · PLUVICTO · PROLARIS · PROVENGE · PYLARIFY · PreciseTumor · Progel · Prolaris · REVI · REVIZE · SURGICEL NU-KNIT · Seglentis · Sonablate · Stendra · Surgicel Powder · Tiopronin · Uribel · UroLift · VESICARE · Veozah · XIAFLEX · XTANDI · Xofigo · Xtandi · YONSA · iTIND System · rezum Generator
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
Most payments (99%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Urology physicians within 10 mi
171
Per 100K population
33.5
County median income
$134,929
Nearest hospital
SAINT CLARE'S HOSPITAL/ DENVILLE CAMPUS
0.0 mi
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Zimmerman is a clinical cardiology specialist, with above-average Medicare volume (top 18% in NJ), with low-engagement industry engagement in the top 16% of NJ peers, with 20 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Zimmerman experienced with botox injection, per unit?
Based on Medicare claims data, Dr. Zimmerman performed 1,800 botox injection, per unit services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Zimmerman receive payments from pharmaceutical companies?
Yes. Dr. Zimmerman received a total of $8,328 from 64 companies across 334 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Zimmerman's costs compare to other urology physicians in Denville?
Dr. Zimmerman's average Medicare payment per service is $43. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Zimmerman) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating a long track record of practice, Medicare participation, and industry disclosure. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →
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About this page
All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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