Dr. Michael L. Grossbard, MD
- Medicare services, 2024
- 691
- Medicare patients, 2024
- 304
- Part D claims, 2024
- 168
- Publications
- 100
- Clinical trials
- 2
- Practice address
- 14 Wall St, New York, NY 10005
- Practice phone
- Call (212) 263-1481
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
NYU Langone Perlmutter Cancer Center - 34th St
New York, New York
Find Dr. Grossbard's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Michael L. Grossbard is a hematologist and oncologist in New York, New York
Dr. Grossbard practices at NYU Langone Perlmutter Cancer Center - 34th St in New York, New York.
Dr. Grossbard's NPI, 1740263276, was assigned on November 29, 2005. Dr. Grossbard graduated from Yale School of Medicine in 1986. Dr. Grossbard holds New York license 216357.
- NPI
- 1740263276NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2668361064
- NPI enumeration date
- November 29, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (212) 263-1481
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 66
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael L. Grossbard practices at NYU Langone Perlmutter Cancer Center - 34th St in New York, New York
Dr. Grossbard's primary practice is NYU Langone Perlmutter Cancer Center - 34th St, at 14 Wall St, New York, NY 10005 in New York County. The practice phone is (212) 263-1481.
- NYU Langone Perlmutter Cancer Center - 34th St14 Wall St, New York, NY 10005 · New York CountyPhone(212) 263-1481
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Michael L. Grossbard is affiliated with 3 sites of care and 1 medical group
Dr. Grossbard's primary practice is NYU Langone Perlmutter Cancer Center - 34th St in New York, New York. Dr. Grossbard is also affiliated with Tisch Hospital. The medical group on file is NYU Langone Orthopedic Surgery Associates. Dmand AI also links Dr. Grossbard to 1 more hospital, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Michael L. Grossbard's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Grossbard practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| NYU Langone Perlmutter Cancer Center - 34th St | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michael L. Grossbard is one of 996 hematologists and oncologists in New York
Hematology and oncology is Dr. Grossbard's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Grossbard is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Grossbard's licenses on file in 3 states: New York, Florida and Massachusetts.
Specialties and state licenses
- Hematology and oncology, New YorkPrimary
- Florida license
- Massachusetts license
Clinical focus
Dmand AI lists anemia, chronic leukemia, lymphoma, multiple myeloma, prostate cancer and purpura and thrombocytopenia among the conditions Dr. Grossbard treats.
Hematologists and oncologists near Dr. Grossbard
Counts of hematologists and oncologists 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. Michael L. Grossbard billed Medicare for 691 services in 2024
CMS data shows 691 Medicare services from Dr. Grossbard across 6 procedure codes in 2024, for 304 Medicare patients. Medicare paid $56,104 for them.
Dr. Grossbard's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 7152024: 6795%
- Surgery
- 2023: 02024: 12
Where Dr. Grossbard's Medicare services took place, 2024
- In an office67197%
- In a facility203%
Dr. Grossbard compared with the New York median for hematologists and oncologists, 2024
- Dr. Grossbard
- New York median
- Medicare services
- 691vs 668Close to median
- Medicare patients
- 304vs 21045% above
- Part D claims
- 47vs 25882% below
Medians across 940 hematologists and oncologists in New York with Dmand AI profiles that report each measure.
Dr. Grossbard'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.
Need commercial claims for Dr. Grossbard?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Grossbard and other hematologists and oncologists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael L. Grossbard treated 304 Medicare patients in 2024, average age 77
CMS counts 304 Medicare patients who saw Dr. Grossbard in 2024. The largest group is 75 to 84, with 140 patients. 75% of them have high cholesterol, and 71% have high blood pressure. 12% are also on Medicaid. Their average risk score is 1.85, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Grossbard's median patient age at 71, with 46% women.
Dr. Grossbard's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Grossbard's Medicare patients by sex, 2024
- Women16153%
- Men14347%
Chronic conditions among Dr. Grossbard's Medicare patients, 2024
- High cholesterol75%
- High blood pressure71%
- Arthritis53%
- Ischemic heart disease38%
- Cancer30%
- Diabetes26%
- Atrial fibrillation22%
- Osteoporosis22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Grossbard's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women46%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Michael L. Grossbard wrote 168 Medicare Part D claims in 2024
In 2024, Dr. Grossbard wrote 168 Medicare Part D claims for 49 patients. 85% of them were for generic drugs. CMS names the drug for 47 of them, across 3 drugs with 11 or more claims each, at $552 in total drug cost. In 2023, CMS named 71 claims across 5 drugs.
Dr. Grossbard's Part D claims by kind of drug, 2024
- Generic143 claims85%
- Brand-name25 claims15%
Dr. Grossbard'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. Grossbard's Part D claims, 2024
- Antibiotics9%15 of 168 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: 712024: 4734%
Drugs named by CMS: 3 in 2024, 5 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. Michael L. Grossbard scored 91 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 91 out of 100 for Dr. Grossbard for performance year 2024, reported as part of a group. Dr. Grossbard accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Grossbard as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Grossbard's MIPS scores, performance year 2024
- 91of 100Final score
- 91.8of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 75of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Michael L. Grossbard has 100 publications on record
Dmand AI links 100 papers to Dr. Grossbard, published from 2004 to 2024. 2015 was the busiest year, with 9. The most frequent topics are Antineoplastic Combined Chemotherapy Protocols, Antibodies, Monoclonal and Lymphoma, B-Cell. Dr. Grossbard has published most often in J Clin Oncol. Dr. Grossbard's most frequent co-authors are Louis B. Harrison, MD, Peter S. Kozuch, MD and Joachim Yahalom, MD.
Dr. Grossbard's papers by year, 2010 to 2024
Topics Dr. Grossbard writes about most
- Antineoplastic Combined Chemotherapy Protocols
- Antibodies, Monoclonal
- Lymphoma, B-Cell
- Antineoplastic Agents
- Fluorouracil
- Adenocarcinoma
- Antibodies, Monoclonal, Murine-Derived
- Deoxycytidine
Dr. Grossbard's most frequent co-authors
- Louis B. Harrison, MD10 shared papers
- Peter S. Kozuch, MD10 shared papers
- Joachim Yahalom, MD7 shared papers
Recent publications by Dr. Grossbard
Clin Lymphoma Myeloma Leuk
Clin Lymphoma Myeloma Leuk
See who Dr. Grossbard researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Grossbard works with, so you can find a warm path to the right hematologists and oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Michael L. Grossbard has worked on 2 clinical trials
Dmand AI links Dr. Grossbard to 2 clinical trials. Conditions studied include Hodgkin Disease, HIV Infections and Lymphoma, Non-Hodgkin.
Clinical trials with Dr. Grossbard by phase
- NonePhase 1: no trials
- 1Phase 1/2: 1 trial
- 1Phase 2: 1 trial
- NonePhase 3: no trials
- NonePhase 4: no trials
Conditions in Dr. Grossbard's trials
- Hodgkin Disease
- HIV Infections
- Lymphoma, Non-Hodgkin
Investigators on the most trials with Dr. Grossbard
- Jeffrey A. Barnes, MD, PhD1 shared trial
- Nancy Lee Bartlett, MD1 shared trial
- Robert A. Bayer, MD1 shared trial
Recent clinical trials with Dr. Grossbard
A Phase I/II Study of the Combination of Pembrolizumab and Lenalidomide, in Patients With Relapsed Non-Hodgkin and Hodgkin Lymphoma (opens in a new tab)
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Michael L. Grossbard received $384 in industry payments from 2016 to 2021
CMS Open Payments shows 5 general payments to Dr. Grossbard from 3 drug and device companies from 2016 to 2021. Consulting fees make up the largest share, 91% of the total. Merck Sharp & Dohme Corporation paid the most, $350.
General payments to Dr. Grossbard by program year, 2016 to 2021
General payments to Dr. Grossbard by kind, 2016 to 2021
- Consulting fees$35091%
- Food and beverage$226%
- Education$123%
Companies that paid Dr. Grossbard the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Michael L. Grossbard has 20 awards and honors on record
Dmand AI lists 20 awards for Dr. Grossbard, most recently Top Doctors: New York Metro Area in 2019.
Awards and honors for Dr. Grossbard
- 2019
- Top Doctors: New York Metro Area
- 2014
- America's Top Doctors
- New York Magazine: Top Doctors
- 2013
- America's Top Doctors for Cancer
- CMS Stage 1 EHR
- President's Award for Excellence
Source: Dmand AI Professional Profile Data
Dr. Michael L. Grossbard graduated from Yale School of Medicine
Dr. Grossbard graduated from Yale School of Medicine in 1986. Dr. Grossbard is a member of ASCO and ASH.
- Medical school
- Board certified in internal medicine
- Board certified in medical oncology
Source: Dmand AI Professional Profile Data
Dr. Michael L. Grossbard accepts plans from 19 insurance carriers
Dr. Grossbard is in network with 19 carriers, including Elevance, Aetna and Excellus BlueCross BlueShield. Medicare plans come from the most carriers, 13. Check the plan with the practice before a visit.
- Elevance
- Aetna
- Excellus BlueCross BlueShield
- Blue Cross Blue Shield of Michigan
- United Healthcare
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Cigna
- +11 more carriersWith a free account
Plan types Dr. Grossbard accepts, by number of carriers
- Medicare13
- PPO12
- HMO9
- EPO5
- POS5
- Medicaid3
Source: Dmand AI Insurance Network Data
Sources for Dr. Michael L. Grossbard's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Michael L. Grossbard
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Michael L. Grossbard's NPI number?
Dr. Michael L. Grossbard's NPI number is 1740263276. It was assigned on November 29, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael L. Grossbard?
Dr. Michael L. Grossbard is a hematologist and oncologist in New York, New York. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. Michael L. Grossbard practice?
Dr. Grossbard practices at 14 Wall St, New York, NY 10005. Dr. Grossbard's primary practice is NYU Langone Perlmutter Cancer Center - 34th St in New York, New York. Dmand AI also links Dr. Grossbard to 1 hospital.
What is Dr. Michael L. Grossbard's office phone number?
The practice phone on file for Dr. Grossbard is (212) 263-1481.
What is Dr. Michael L. Grossbard's medical license number?
Dr. Grossbard holds New York license 216357, one of the licenses on file in 3 states.
Which states has Dr. Michael L. Grossbard been licensed in?
Dmand AI has state licenses on file for Dr. Grossbard in New York (1999 to 2027), Florida (2021 to 2023) and Massachusetts (1989 to 2003).
Which hospitals is Dr. Michael L. Grossbard affiliated with?
Dr. Grossbard is affiliated with Tisch Hospital. Dmand AI links Dr. Grossbard to 1 more hospital.
What medical group is Dr. Michael L. Grossbard part of?
Dr. Grossbard is linked to NYU Langone Orthopedic Surgery Associates.
Does Dr. Michael L. Grossbard accept Medicare?
Yes. CMS data shows Dr. Grossbard billed Medicare for 691 services in 2024, and Dr. Grossbard accepts Medicare assignment.
Does Dr. Michael L. Grossbard offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Grossbard as offering telehealth services.
Show 11 more questionsShow fewer questions
What is Dr. Michael L. Grossbard's MIPS score?
Dr. Grossbard's MIPS final score for performance year 2024 is 91 out of 100, reported as part of a group.
How many Medicare patients does Dr. Michael L. Grossbard see?
CMS counts 304 Medicare patients who saw Dr. Grossbard in 2024, with an average age of 77.
Is Dr. Michael L. Grossbard board certified?
Yes. Dr. Grossbard is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Michael L. Grossbard bill to Medicare?
In 2024, Dr. Grossbard's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99215) and office visit, new patient (99205).
Where did Dr. Michael L. Grossbard go to medical school?
Dr. Grossbard graduated from Yale School of Medicine in 1986.
What drugs does Dr. Michael L. Grossbard prescribe most?
In 2024 Medicare Part D data, Dr. Grossbard's most prescribed drugs by claims were Acyclovir, Anastrozole and Sulfamethoxazole-Trimethoprim.
Has Dr. Michael L. Grossbard received payments from drug or device companies?
CMS Open Payments shows $384 in general payments to Dr. Grossbard from 3 companies from 2016 to 2021. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Michael L. Grossbard been practicing?
Dr. Grossbard graduated from medical school in 1986, 40 years ago.
Does Dr. Michael L. Grossbard do research?
Dmand AI links 100 publications to Dr. Grossbard, published from 2004 to 2024. Dr. Grossbard has worked on 2 clinical trials.
Who does Dr. Michael L. Grossbard publish with?
Dr. Grossbard's most frequent co-authors are Louis B. Harrison, MD (10 shared papers), Peter S. Kozuch, MD (10 shared papers) and Joachim Yahalom, MD (7 shared papers).
What insurance does Dr. Michael L. Grossbard accept?
Dr. Grossbard is in network with 19 carriers, including Elevance, Aetna and Excellus BlueCross BlueShield. Medicare plans come from the most carriers, 13. Check the plan with the practice before a visit.
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