Dr. Ivan Grunberger, MD
- Medicare services, 2024
- 3,090
- Medicare patients, 2024
- 488
- Part D claims, 2024
- 2,259
- Publications
- 4
- Clinical trials
- 2
- Practice address
- 126 Greenpoint Ave, Brooklyn, NY 11222
- Practice phone
- Call (516) 321-7400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Northwell Health Physician Partners Cardiology
Brooklyn, New York
Find Dr. Grunberger's professional email, personal email and mobile number
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Dr. Ivan Grunberger is a urologist in Brooklyn, New York
Dr. Grunberger practices at Northwell Health Physician Partners Cardiology in Brooklyn, New York.
Dr. Grunberger's NPI, 1528062247, was assigned on June 9, 2005. Dr. Grunberger graduated from New York University School of Medicine in 1980. Dr. Grunberger holds New York license 146673-1.
- NPI
- 1528062247NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0840219002
- NPI enumeration date
- June 9, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (516) 321-7400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 72
- Medical school graduation
- 1980
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ivan Grunberger practices at Northwell Health Physician Partners Cardiology in Brooklyn, New York
Dr. Grunberger's primary practice is Northwell Health Physician Partners Cardiology, at 126 Greenpoint Ave, Brooklyn, NY 11222 in Kings County. The practice phone is (516) 321-7400.
- Northwell Health Physician Partners Cardiology126 Greenpoint Ave, Brooklyn, NY 11222 · Kings CountyPhone(516) 321-7400
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Ivan Grunberger is affiliated with 4 sites of care and 2 medical groups
Dr. Grunberger's primary practice is Northwell Health Physician Partners Cardiology in Brooklyn, New York. Dr. Grunberger is also affiliated with Lenox Hill Hospital. The medical group on file is Northwell Health Physician Partners Cardiology at Great Neck. Dmand AI also links Dr. Grunberger to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Ivan Grunberger's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Grunberger practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northwell Health Physician Partners Cardiology | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ivan Grunberger is one of 919 urologists in New York
Urology is Dr. Grunberger's primary specialty in the NPI Registry, under taxonomy code 208800000X. Dr. Grunberger is licensed in New York.
Specialties and state licenses
- Urology, New YorkPrimary
Urologists near Dr. Grunberger
Counts of urologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Ivan Grunberger billed Medicare for 3,090 services in 2024
CMS data shows 3,090 Medicare services from Dr. Grunberger across 13 procedure codes in 2024, for 488 Medicare patients. Medicare paid $144,405 for them. Every service was in an office.
Dr. Grunberger's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 1,4762024: 1,69815%
- Office and hospital visits
- 2023: 7812024: 90916%
- Other services
- 2023: 02024: 307
- Imaging
- 2023: 1502024: 17617%
Dr. Grunberger compared with the New York median for urologists, 2024
- Dr. Grunberger
- New York median
- Medicare services
- 3,090vs 8493.6 times
- Medicare patients
- 488vs 36036% above
- Part D claims
- 2,159vs 5893.7 times
Medians across 885 urologists in New York with Dmand AI profiles that report each measure.
Dr. Grunberger's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Grunberger and other urologists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ivan Grunberger treated 488 Medicare patients in 2024, average age 75
CMS counts 488 Medicare patients who saw Dr. Grunberger in 2024. The largest group is 65 to 74, with 228 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 17% are also on Medicaid. Their average risk score is 1.04, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Grunberger's median patient age at 70, with 11% women.
Dr. Grunberger's Medicare patients by age, 2024
Dr. Grunberger's Medicare patients by sex, 2024
- Women7115%
- Men41785%
Chronic conditions among Dr. Grunberger's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis43%
- Ischemic heart disease40%
- Diabetes39%
- Cancer22%
- Chronic kidney disease18%
- Atrial fibrillation17%
Share of Medicare patients with each condition. A patient can have several.
Dr. Grunberger's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women11%
- Men82%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ivan Grunberger wrote 2,259 Medicare Part D claims in 2024
In 2024, Dr. Grunberger wrote 2,259 Medicare Part D claims for 494 patients. 89% of them were for generic drugs. CMS names the drug for 2,159 of them, across 30 drugs with 11 or more claims each, at $214,730 in total drug cost. In 2023, CMS named 1,638 claims across 26 drugs.
Dr. Grunberger's Part D claims by kind of drug, 2024
- Generic2,020 claims89%
- Brand-name239 claims11%
Dr. Grunberger's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Grunberger's Part D claims, 2024
- Antibiotics7%163 of 2,259 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,6382024: 2,15932%
Drugs named by CMS: 30 in 2024, 26 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Ivan Grunberger scored 93 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Dr. Grunberger for performance year 2024, reported through an alternative payment model (APM). Dr. Grunberger accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 13 procedures of prostate resection by Dr. Grunberger, more than 67% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Grunberger's MIPS scores, performance year 2024
- 93of 100Final score
- 79.8of 100Quality
- 89of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Grunberger ranks in Medicare procedure volume
- Prostate resection
- 67th percentile13 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Ivan Grunberger has 4 publications on record
Dmand AI links 4 papers to Dr. Grunberger, published from 2016 to 2022. The most frequent topics are Prostatic Hyperplasia and Lower Urinary Tract Symptoms. Dr. Grunberger's most frequent co-authors are Jed C. Kaminetsky, MD, Alfred D. Kohan, MD and Sheldon Bruce Pike, MD.
Dr. Grunberger's papers by year, 2016 to 2022
Topics Dr. Grunberger writes about most
- Prostatic Hyperplasia
- Lower Urinary Tract Symptoms
Dr. Grunberger's most frequent co-authors
- Jed C. Kaminetsky, MD2 shared papers
- Alfred D. Kohan, MD2 shared papers
- Sheldon Bruce Pike, MD2 shared papers
Recent publications by Dr. Grunberger
See who Dr. Grunberger researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Grunberger works with, so you can find a warm path to the right urologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Ivan Grunberger has worked on 2 clinical trials
Dmand AI links Dr. Grunberger to 2 clinical trials. Conditions studied include Erectile Dysfunction, Stomach Neoplasms and Esophageal Neoplasms.
Conditions in Dr. Grunberger's trials
- Erectile Dysfunction
- Stomach Neoplasms
- Esophageal Neoplasms
- Sexual Dysfunctions, Psychological
Investigators on the most trials with Dr. Grunberger
- Vasileios John Assikis, MD1 shared trial
- James F. Barter, MD1 shared trial
- Robert E. Bloom, MD1 shared trial
Recent clinical trials with Dr. Grunberger
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Ivan Grunberger received $200,247 in industry payments from 2016 to 2025
CMS Open Payments shows 478 general payments to Dr. Grunberger from 38 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 74% of the total. Astellas Pharma US Inc paid the most, $88,404.
General payments to Dr. Grunberger by program year, 2016 to 2025
General payments to Dr. Grunberger by kind, 2016 to 2025
- Speaker and faculty fees$147,51874%
- Consulting fees$19,99610%
- Food and beverage$16,8808%
- Travel and lodging$13,4927%
- Other$1,9121%
Companies that paid Dr. Grunberger the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ivan Grunberger graduated from New York University School of Medicine
Dr. Grunberger graduated from New York University School of Medicine in 1980.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Ivan Grunberger's profile data
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Ivan Grunberger
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What is Dr. Ivan Grunberger's NPI number?
Dr. Ivan Grunberger's NPI number is 1528062247. It was assigned on June 9, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Ivan Grunberger?
Dr. Ivan Grunberger is a urologist in Brooklyn, New York. The primary specialty in the NPI Registry is Urology Physician (taxonomy code 208800000X).
Where does Dr. Ivan Grunberger practice?
Dr. Grunberger practices at 126 Greenpoint Ave, Brooklyn, NY 11222. Dr. Grunberger's primary practice is Northwell Health Physician Partners Cardiology in Brooklyn, New York. Dmand AI also links Dr. Grunberger to 2 group practices and clinics and 1 medical group.
What is Dr. Ivan Grunberger's office phone number?
The practice phone on file for Dr. Grunberger is (516) 321-7400.
What is Dr. Ivan Grunberger's medical license number?
Dr. Grunberger holds New York license 146673-1.
Which hospitals is Dr. Ivan Grunberger affiliated with?
Dr. Grunberger is affiliated with Lenox Hill Hospital.
What medical group is Dr. Ivan Grunberger part of?
Dr. Grunberger is linked to Northwell Health Physician Partners Cardiology at Great Neck. Dmand AI links Dr. Grunberger to 1 more medical group.
Does Dr. Ivan Grunberger accept Medicare?
Yes. CMS data shows Dr. Grunberger billed Medicare for 3,090 services in 2024, and Dr. Grunberger accepts Medicare assignment.
What is Dr. Ivan Grunberger's MIPS score?
Dr. Grunberger's MIPS final score for performance year 2024 is 93 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Ivan Grunberger see?
CMS counts 488 Medicare patients who saw Dr. Grunberger in 2024, with an average age of 75.
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What services does Dr. Ivan Grunberger bill to Medicare?
In 2024, Dr. Grunberger's most billed Medicare services were surgery: urinary system (51798), surgery: urinary system (51741) and office visit, established patient (99214).
Where did Dr. Ivan Grunberger go to medical school?
Dr. Grunberger graduated from New York University School of Medicine in 1980.
What drugs does Dr. Ivan Grunberger prescribe most?
In 2024 Medicare Part D data, Dr. Grunberger's most prescribed drugs by claims were Tamsulosin HCl, Finasteride and Alfuzosin HCl ER.
Has Dr. Ivan Grunberger received payments from drug or device companies?
CMS Open Payments shows $200,247 in general payments to Dr. Grunberger from 38 companies from 2016 to 2025. The largest total came from Astellas Pharma US Inc.
How long has Dr. Ivan Grunberger been practicing?
Dr. Grunberger graduated from medical school in 1980, 46 years ago.
Does Dr. Ivan Grunberger do research?
Dmand AI links 4 publications to Dr. Grunberger, published from 2016 to 2022. Dr. Grunberger has worked on 2 clinical trials.
Who does Dr. Ivan Grunberger publish with?
Dr. Grunberger's most frequent co-authors are Jed C. Kaminetsky, MD (2 shared papers), Alfred D. Kohan, MD (2 shared papers) and Sheldon Bruce Pike, MD (2 shared papers).
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