Dr. Michael L. Grossbard, MD

  • New York, NY
  • Hematologist and oncologist
NPI1740263276PAC ID2668361064
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
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Personal email
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Mobile number
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Social profiles

Primary practice

NYU Langone Perlmutter Cancer Center - 34th St

New York, New York

See all 4 affiliations

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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 and contact details
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
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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 St
    14 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.

See all 4 affiliations for Dr. Grossbard

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.

EHR by site
SiteEHR vendor and product
NYU Langone Perlmutter Cancer Center - 34th StAvailable with a free account
+2 more affiliated sitesAvailable 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 YorkPrimaryLicense 216357 · 1999 to 2027 · taxonomy 207RH0003X
  • Florida license2021 to 2023
  • Massachusetts license1989 to 2003

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.

Medicare services, 2024691
Medicare patients304
Paid by Medicare$56,104
Procedure codes6

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.

See all procedures by Dr. Grossbard

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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.

Medicare patients, 2024304
Average age77
Average risk score1.85
Also on Medicaid12%

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

  1. High cholesterol75%
  2. High blood pressure71%
  3. Arthritis53%
  4. Ischemic heart disease38%
  5. Cancer30%
  6. Diabetes26%
  7. Atrial fibrillation22%
  8. 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.

Part D claims, 2024168
Drugs named by CMS3
Total drug cost$552
Part D patients49

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.

See all prescribing by Dr. Grossbard

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

For MedTech and pharma teams

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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.

Papers100
Years published2004 to 2024

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

Recent publications by Dr. Grossbard

See all 100 publications and co-authors

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.

How network discovery works

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

  1. NonePhase 1: no trials
  2. 1Phase 1/2: 1 trial
  3. 1Phase 2: 1 trial
  4. NonePhase 3: no trials
  5. 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

Recent clinical trials with Dr. Grossbard

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

$384in total
  • 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.

See all payments to Dr. Grossbard

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

  1. 2019
    • Top Doctors: New York Metro Area
  2. 2014
    • America's Top Doctors
    • New York Magazine: Top Doctors
  3. 2013
    • America's Top Doctors for Cancer
    • CMS Stage 1 EHR
    • President's Award for Excellence
See all 20 awards

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.

  1. Medical schoolYale School of Medicine
  2. Board certified in internal medicineAmerican Board of Internal Medicine
  3. Board certified in medical oncologyAmerican Board of Internal Medicine

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

  1. Medicare13
  2. PPO12
  3. HMO9
  4. EPO5
  5. POS5
  6. Medicaid3

Source: Dmand AI Insurance Network Data

Sources for Dr. Michael L. Grossbard's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors 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-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand 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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