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NYU Langone Provider
NYU Langone providers are employed by NYU Langone Health as part of our physician network, known as the Faculty Group Practice.

Catherine M. Diefenbach, MD

NYU Langone Provider
NYU Langone providers are employed by NYU Langone Health as part of our physician network, known as the Faculty Group Practice.
  • Specialties: Hematology, Medical Oncology
  • Languages: English, German
  • Phone: 212-731-5670
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Director
Clinical Lymphoma Program, Perlmutter Cancer Center
Committee Member
American Society of Hematology
Committee Member
American Society of Clinical Oncology
Leader
National Immunotherapy Clinical Trial for Hodgkin Lymphoma

I am a hematologist–oncologist specializing in the care of patients with lymphoma. My goal is to provide the best possible care for these patients, and to discover new and scientifically grounded treatments that can improve management and increase the cure rate of lymphoma.

As an oncologist, I am committed to combining compassionate and personalized patient care with cutting-edge, patient-focused, and translational research. I strive to develop a treatment plan for each patient that is designed to fit his or her unique situation, as well as the biology of the tumor.

At NYU Langone’s Perlmutter Cancer Center, I am currently director of hematology translational research as well as director of the Clinical Lymphoma Program. Our team of experts from various specialties provides outstanding and compassionate clinical care to people with all types of lymphoma. We have the advantage of being at the forefront of advanced research, coupling personalized care with some of the most innovative and groundbreaking clinical trials in the nation. We provide people with access to many exciting new treatments before they are commercially available.

I am currently leading a national clinical trial for patients with relapsed Hodgkin lymphoma. I also serve as the principal investigator for numerous clinical trials at NYU Langone involving a range of different therapies, including targeted therapy, immunotherapy, and radiation therapy. Many of these clinical trials explore innovative methods of combining new targeted or immune-based therapies with existing therapies to find new ways to control lymphoma, while maximizing patients’ quality of life and minimizing side effects. I also collaborate with basic scientists to create the next generation of therapeutic approaches for the management of lymphoma.

I am on the lymphoma committee of the ECOG-ACRIN Cancer Research Group, a cooperative group made up of the Eastern Cooperative Oncology Group and the American College of Radiology Imaging Network. I have also been invited to serve on multiple committees of both the American Society of Hematology and the American Society of Clinical Oncology. I have received research grants for my work from the National Cancer Institute, the American Cancer Society, and the Lymphoma Research Foundation.


Conditions and Treatments

Conditions
  • non-Hodgkin lymphoma
  • Hodgkin lymphoma
  • cutaneous T-cell lymphoma
  • lymphoma
  • AIDS-related lymphoma
  • hematologic malignancies
  • blood cancer

Positions
Board Certifications
  • American Board of Internal Medicine (Hematology), 2010
  • American Board of Internal Medicine - Internal Medicine, 2004
Education and Training
  • Fellowship, Memorial Sloan-Kettering Cancer Center, Hematology-Oncology, 2008
  • Residency, Johns Hopkins Hospital, Internal Medicine, 2004
  • MD from University Of Pennsylvania, 2001

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This provider accepts the following insurance plans.

  • Aetna
    • Aetna HMO
    • Aetna Indemnity
    • Aetna International
    • Aetna Medicare Managed Care
    • Aetna Meritain Health
    • Aetna Open Access EPO
    • Aetna Open Access HMO
    • Aetna POS
    • Aetna POS (American Express Employer)
    • Aetna PPO
    • Aetna Signature Administrators PPO
    • Aetna Student Plan
    • Allied
    • Chesterfield Resources Inc
    • Christian Brothers Services
    • CoreSource
    • Healthscope
    • Nippon Life of America-Aetna
    • Nippon Life-Aetna
    • Starmark
    • WellNet
  • Agewell
    • Agewell Managed Medicaid
    • Agewell Medicare
  • Amida Care
    • Amida Care Medicaid
  • Blue Cross Blue Shield
    • BCBS Blue Access EPO Large Group
    • BCBS Blue Access EPO Small Group
    • BCBS Blue Access GEPO Large Group
    • BCBS Blue Access GEPO Small Group
    • BCBS Blue Access HMO Small Group
    • BCBS Blue Access PPO Large Group
    • BCBS EPO
    • BCBS EPO (BlackRock Employees)
    • BCBS EPO (NYU Winthrop Employees)
    • BCBS EPO - Empire EPO (NYU Langone Employees)
    • BCBS EPO - Empire EPO (Sunset Park/Family Health Center Employees)
    • BCBS EPO - Empire NYU Care (NYU Langone Employees)
    • BCBS EPO - Empire NYU Care (NYU Winthrop Employees)
    • BCBS EPO - Empire NYU Care (Sunset Park/Family Health Center Employees)
    • BCBS Federal Program
    • BCBS HMO
    • BCBS Indemnity
    • BCBS Local 32BJ Employees
    • BCBS Mediblue Medicare HMO
    • BCBS Mediblue Medicare PPO
    • BCBS POS
    • BCBS PPO
    • BCBS PPO (BlackRock Employees)
    • BCBS PPO (NYU Winthrop Employees)
    • BCBS PPO - Empire PPO (Sunset Park/Family Health Center Employees)
    • BCBS PPO/EPO Small Group
    • New York Hotel Trades
  • Centerlight Healthcare
    • CenterLight Healthcare DIRECT
    • CenterLight Healthcare PACE
    • CenterLight Healthcare Select
    • Centerlight Pace Medicare HMO
  • Centers Plan For Healthy Living
    • Centers Plan For Healthy Living
  • Cigna
    • Apwu Health Plan
    • Cigna Great West PPO
    • Cigna HMO
    • Cigna Indemnity
    • Cigna Managed Care/POS
    • Cigna NALC
    • Cigna Open Access
    • Cigna Open Access PPO
    • Cigna PPO
    • Cigna Premier Plus
    • Consolidated Health Plans-NYU Student
    • Great West HMO
    • MVP-Cigna Network
  • Connecticare
    • Connecticare Commercial
  • Elderplan
    • Elderplan
    • Elderplan FIDA
  • Emblem
    • Emblem Select Care Basic Exchange
    • Emblem Select Care Bronze Exchange
    • Emblem Select Care Gold Exchange
    • Emblem Select Care Platinum Exchange
    • Emblem Select Care Silver Exchange
  • Empire BCBS Health Plus
    • BCBS Healthplus Essential Plan 1
    • BCBS Healthplus Essential Plan 2
    • BCBS Healthplus Essential Plan 3
    • BCBS Healthplus Essential Plan 4
    • BCBS Healthplus Gatekeeper exchange
    • BCBS Healthplus NY Child Health Plus NY
    • BCBS Healthplus NY Medicaid Managed Care NY
    • BCBS Healthplus Special Needs
  • Fidelis Care
    • Fidelis Care Bronze Exchange
    • Fidelis Care Catastrophic Cvg Exchange
    • Fidelis Care Child Health Plus
    • Fidelis Care Gold Exchange
    • Fidelis Care Medicaid Managed Care
    • Fidelis Care Medicare
    • Fidelis Care Native American Exchange
    • Fidelis Care Platinum Exchange
    • Fidelis Care Silver Exchange
    • Fidelis Essential Plan 1
    • Fidelis Essential Plan 2
    • Fidelis Essential Plan 3
    • Fidelis Essential Plan 4
  • GHI
    • American Plan Administrators
    • GHI CBP (City of New York Employees)
    • GHI Emblem Health EPO
    • GHI Emblem Health PPO
    • GHI HMO
    • GHI HMO Medicare
    • GHI Medicare PPO
    • GHI Medicare Supplement
    • GHI Network Access - Benefit Services of PA
    • GHI Network Access - Total Plan Concepts
    • IUOE Local 14-14B
    • Wlny-TV Inc.
  • HIP
    • Emblem Essential Plan 1
    • Emblem Essential Plan 2
    • Emblem Essential Plan 3
    • Emblem Essential Plan 4
    • HIP Access I
    • HIP Access II
    • HIP Bridge
    • HIP Child Health Plus
    • HIP EPO
    • HIP HMO
    • HIP Medicaid Enhanced Care
    • HIP Medicare VIP
    • HIP POS
    • HIP Prime Bronze
    • HIP Prime Gold
    • HIP Prime Platinum
    • HIP Prime Silver
    • HIP VIP Medicare - VIP Go
    • HIP Vytra Healthcare Managed Care
  • Health Smart
    • WTC Health Program-HHC
  • Healthfirst
    • Health And Recovery Plan (Harp)
    • Healthfirst Bronze Leaf Exchange
    • Healthfirst Bronze Total, Pro, Plus EPO
    • Healthfirst Child Health Plus
    • Healthfirst Essential Plan 1 & 2
    • Healthfirst Essential Plan 3 & 4
    • Healthfirst Gold Leaf Exchange
    • Healthfirst Gold Total, Pro, Plus EPO
    • Healthfirst Green Leaf Exchange
    • Healthfirst Medicaid
    • Healthfirst Medicare
    • Healthfirst Medicare/NYU Risk
    • Healthfirst Personal Wellness Plan
    • Healthfirst Platinum Leaf Exchange
    • Healthfirst Platinum Total, Pro, Plus EPO
    • Healthfirst Senior Health Partners
    • Healthfirst Silver Leaf Exchange
    • Healthfirst Silver Total, Pro, Plus EPO
  • Humana
    • Humana Medicare Advantage
  • Local 1199
    • Local 1199 - NYU Hospital Member Choice
    • Local 1199 PPO
  • Magnacare
    • Magnacare PPO
  • Medicaid of New York
    • NYS Medicaid
  • Medicare
    • Medicare Part B
  • Metroplus
    • Metroplus Bronze Plus Plan Exchange
    • Metroplus Child Health Plus
    • Metroplus Essential Plan 1
    • Metroplus Essential Plan 2
    • Metroplus Essential Plan 3
    • Metroplus Essential Plan 4
    • Metroplus Gold
    • Metroplus Gold Care 2
    • Metroplus Gold Plus Plan Exchange
    • Metroplus Medicaid Managed Care
    • Metroplus Medicare
    • Metroplus Medplus Plan Exchange
    • Metroplus Platinum Plus Plan Exchange
    • Metroplus Silver Plus Plan Exchange
  • Multiplan
    • AXA Assistance USA
    • Administrative Concepts
    • Beech Street PPO
    • Diversified Administration Corporation
    • Fiserv Health
    • GEHA
    • Global Excel
    • Global Health
    • Guardian Life Insurance Co Of America
    • Health Net Of California
    • Health Republic Of NJ
    • Humana Health Plan
    • Insurance Design Administrators
    • Kaiser Foundation
    • Kaiser Permanente
    • Meritain Health
    • Multiplan PPO
    • Multiplan-Capital Dist Phys Health
    • Mutual Of Omaha
    • Nippon Life Ins Co
    • PHCS
    • Professional Benefit Admin
    • Qualcare Inc
    • Screen Actors Guild
    • Teamsters Allied Benefits
    • US Life Insurance Company
  • NYSHIP - The Empire Plan
    • NYS Health Insurance Plan - The Empire Plan
  • Oxford
    • Oxford Health Plans Freedom
    • Oxford Health Plans Liberty
  • POMCO Insurance Company
    • POMCO Insurance Company
  • Partners Health Plan Inc
    • Partners Health Plan FIDA
    • Partners Health Plan Medicaid
    • Partners Health Plan Medicare
  • Qualcare Inc.
    • Qualcare Direct
  • Railroad Medicare
    • Palmetto GBA Railroad Medicare
  • Tricare
    • TRICARE
    • TriWest
    • US Family Health Plan
  • United Healthcare
    • AARP Medicare Complete
    • Oxford Health Plans Medicare Advantage
    • UMR
    • UMR WTC Health Program
    • United Healthcare AARP
    • United Healthcare Choice
    • United Healthcare Choice (AMEX employees)
    • United Healthcare Choice (Blackrock employees)
    • United Healthcare Choice (CBS employees)
    • United Healthcare Choice (Viacom Employees)
    • United Healthcare Choice NSLIJ
    • United Healthcare EPO
    • United Healthcare EPO (NYU Langone Health Employees)
    • United Healthcare HMO
    • United Healthcare Indemnity
    • United Healthcare Indemnity (NYU Langone Health Employees)
    • United Healthcare Medicare
    • United Healthcare Navigate
    • United Healthcare POS
    • United Healthcare PPO
    • United Healthcare Plus (NYU Langone Health Employees)
    • United Healthcare Student Resources
    • United Healthcare Value, Advantage and HDHP (New York University employees)
    • UnitedHealthcare Choice (JP Morgan Employees)
  • VNS Choice Advantage
    • VNS Medicaid Advantage
    • VNS Medicare Advantage
    • VNS NY Choice Select Health
  • Veterans Choice
    • Veterans Choice Program-VACAA
  • Village Care
    • VillageCare
View All Accepted Plans This list of insurances changes regularly, and insurance plans listed may not be accepted at all office locations for this provider. Before your appointment, please confirm with your insurance company that this provider accepts your insurance.

Locations and Appointments

NYU Hematology Associates

240 East 38th Street, 19th Floor
New York, NY 10016

  • A Randomized Phase 2 Study of CDX-1127 (Varlilumab) in Combination with Nivolumab in Patients with Relapsed or Refractory Aggressive B-cell Lymphomas

    Learn More
  • AN OPEN-LABEL RANDOMIZED MULTICENTER PHASE Ib/II TRIAL EVALUATING THE SAFETY TOLERABILITY PHARMACOKINETICS AND EFFICACY OF MOSUNETUZUMAB (BTCT4465A) IN COMBINATION WITH POLATUZUMAB VEDOTIN IN PATIENTS WITH B-CELL NON-HODGKIN LYMPHOMA

    Learn More
  • CDA Diefenbach Medpace Protocol ID ME-522-001 titled: A Phase 1 Open-label Study of Voruciclib in Subjects with Relapsed and/or Refractory B Cell Malignancies After Failure of Prior Standard Therapies

    Learn More
View All Research Studies (8)

  • Merryman, Reid W; Carreau, Nicole A; Advani, Ranjana H; Spinner, Michael A; Herrera, Alex F; Chen, Robert; Tomassetti, Sarah; Ramchandren, Radhakrishnan; Hamid, Muhammad; Assouline, Sarit; Santiago, Raoul; Nina Wagner-Johnston, N; Paul, Suman; Svoboda, Jakub; Bair, Steven M; Barta, Stefan K; Liu, Yang; Nathan, Sunita; Karmali, Reem; Burkart, Madelyn; Torka, Pallawi; David, Kevin A; Wei, Catherine; Lansigan, Frederick; Emery, Lukas; Persky, Daniel; Smith, Sonali M; Godfrey, James; Chavez, Julio; Cohen, Jonathan B; Troxel, Andrea B; Diefenbach, Catherine; Armand, Philippe

    Oncologist. 2020 Jun ; 25(6):e993-e997

  • Carreau, Nicole A; Armand, Philippe; Merryman, Reid W; Advani, Ranjana H; Spinner, Michael A; Herrera, Alex F; Ramchandren, Radhakrishnan; Hamid, Muhammad S; Assouline, Sarit; Santiago, Raoul; Wagner-Johnston, Nina; Paul, Suman; Svoboda, Jakub; Bair, Steven M; Barta, Stefan K; Nathan, Sunita; Karmali, Reem; Torka, Pallawi; David, Kevin; Lansigan, Frederick; Persky, Daniel; Godfrey, James; Chavez, Julio C; Xia, Yuhe; Diefenbach, Catherine

    British journal of haematology. 2020 May 19;

  • Choi, Yun; Diefenbach, Catherine S

    Current hematologic malignancy reports. 2020 Apr ; 15(2):125-129

Read All Publications (39)

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