Gwynn D. Long
Experienced in Diffuse Large B-Cell Lymphoma (DLBCL)

Dr. Gwynn D. Long

Hematology Oncology | Transplant Surgery
Duke Health
Duke Adult Blood And Marrow Transplant Clinic
2400 Pratt St, 
Durham, NC 
On Staff At
Accepting New Patients
Offers Telehealth
41 Years of Experience

Experienced in Diffuse Large B-Cell Lymphoma (DLBCL)
Duke Health
Duke Adult Blood And Marrow Transplant Clinic
2400 Pratt St, 
Durham, NC 
OverviewInsuranceLocationsClinical ResearchSimilar Doctors

Overview

Gwynn Long is a Hematologist Oncology specialist and a Transplant Surgeon in Durham, North Carolina. Dr. Long has been practicing medicine for over 41 years and is rated as an Experienced provider by MediFind in the treatment of Diffuse Large B-Cell Lymphoma (DLBCL). His top areas of expertise are Multiple Myeloma, Relapsed Refractory Multiple Myeloma (RRMM), Smoldering Multiple Myeloma, Bone Marrow Transplant, and Colonoscopy. Dr. Long is currently accepting new patients.

His clinical research consists of co-authoring 46 peer reviewed articles and participating in 2 clinical trials. MediFind looks at clinical research from the past 15 years.

Specialties
Hematology Oncology
Transplant Surgery
Licenses
Internal Medicine in NC
Board Certifications
American Board Of Internal Med, Internal Medicine
American Board Of Internal Med, Medical Oncology
Hospital Affiliations
Duke University Hospital
Languages Spoken
English
Gender
Male

Insurance

Accepted insurance can change. Please verify directly with the provider.

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Accepted insurance plans:

Aetna
  • EPO
  • HMO
  • POS
  • PPO
Ambetter
  • EPO
  • HMO
  • PPO
Anthem
  • EPO
  • HMO
  • POS
  • PPO
Blue Cross Blue Shield
  • EPO
  • HMO
  • POS
  • PPO
Cigna
  • EPO
  • HMO
  • PPO
EmblemHealth
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • OTHER COMMERCIAL
  • OTHER MEDICARE PART D
Humana
  • HMO
  • INDEMNITY
  • POS
  • PPO
Independent Health
  • EPO
  • POS
  • PPO
Medicaid
  • OTHER MEDICAID
  • STATE MEDICAID
Medicare
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE PART D
Piedmont
  • HMO
  • POS
UnitedHealthcare
  • EPO
  • HMO
  • POS
  • PPO
Wellcare
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  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
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Locations

Duke Adult Blood and Marrow Transplant Clinic
2400 Pratt St, Durham, NC 27705
Call: 919-668-1002

Additional Areas of Focus

Dr. Long has provided the following conditions as areas of focus. Please note that we may not have enough data to validate their experience in some of these conditions.

Multiple Myeloma

Clinical Research

Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.


2 Clinical Trials

Extracorporeal Photopheresis for the Management of Progressive Bronchiolitis Obliterans Syndrome in Medicare-Eligible Recipients of Lung Allografts
Extracorporeal Photopheresis for the Management of Progressive Bronchiolitis Obliterans Syndrome in Medicare-Eligible Recipients of Lung Allografts
Enrollment Status: Active_not_recruiting
Publish Date: April 17, 2025
Intervention Type: Combination product, Other
Study Drug: Extracorporeal Photopheresis (ECP)
Study Phase: Phase 3
A Pilot Trial of CMV Specific Donor Lymphocyte Infusions From 3-6/6 HLA Matched Family Member Following Nonmyeloablative Allogeneic Stem Cell Transplantation
A Pilot Trial of CMV Specific Donor Lymphocyte Infusions From 3-6/6 HLA Matched Family Member Following Nonmyeloablative Allogeneic Stem Cell Transplantation
Enrollment Status: Terminated
Publish Date: June 05, 2017
Intervention Type: Biological
Study Phase: Phase 1
View 1 Less Clinical Trial

46 Total Publications

Cytomegalovirus Infection After CD-34 Selected Autologous Hematopoietic Stem Cell Transplantation for Systemic Sclerosis.
Cytomegalovirus Infection After CD-34 Selected Autologous Hematopoietic Stem Cell Transplantation for Systemic Sclerosis.
Journal: Transplant infectious disease : an official journal of the Transplantation Society
Published: October 15, 2025
View All 46 Publications
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Elite in Diffuse Large B-Cell Lymphoma (DLBCL)
Dr. Deborah M. Stephens
Hematology | Hematology Oncology
Elite in Diffuse Large B-Cell Lymphoma (DLBCL)
Dr. Deborah M. Stephens
Hematology | Hematology Oncology

University Of North Carolina At Chapel Hill

101 Manning Dr, 
Chapel Hill, NC 
 (9.9 miles away)
984-974-1000
Languages Spoken:
English
See accepted insurances
Accepting New Patients

Deborah Stephens is a Hematologist and a Hematologist Oncology provider in Chapel Hill, North Carolina. Dr. Stephens is rated as an Elite provider by MediFind in the treatment of Diffuse Large B-Cell Lymphoma (DLBCL). Her top areas of expertise are Chronic B-Cell Leukemia (CBCL), Chronic Lymphocytic Leukemia (CLL), Small Lymphocytic Lymphoma (SLL), Bone Marrow Aspiration, and Bone Marrow Transplant. Dr. Stephens is currently accepting new patients.

Louis F. Diehl
Distinguished in Diffuse Large B-Cell Lymphoma (DLBCL)
Dr. Louis F. Diehl
Hematology Oncology | Hematology
Distinguished in Diffuse Large B-Cell Lymphoma (DLBCL)
Dr. Louis F. Diehl
Hematology Oncology | Hematology

Duke University Hospital

2301 Erwin Rd, 
Durham, NC 
 (0.2 miles away)
919-684-8111
Languages Spoken:
English
See accepted insurances
Accepting New Patients
Offers Telehealth

I see patients with blood related cancers, primarily lymphoma. I provide them with comprehensive care from the time they come in for diagnosis until they are cured. Duke is special because I can bring the power of a large medical center with expertise across disciplines together for the care of each patient. One of the nicest parts of my job is the Christmas cards I receive from patients that I’ve treated. For many patients who are doing well, we discharge them from the clinic after five years. The Christmas cards give me the opportunity to see that they are getting on with their lives and to hear about how their families are doing. Outside of work, my wife and I spend a lot of our free time with our two daughters and their children. We like the beach, biking and hiking as a family. Dr. Diehl is rated as a Distinguished provider by MediFind in the treatment of Diffuse Large B-Cell Lymphoma (DLBCL). His top areas of expertise are Diffuse Large B-Cell Lymphoma (DLBCL), Acute Myeloid Leukemia (AML), B-Cell Lymphoma, Non-Hodgkin Lymphoma, and Bone Marrow Aspiration.

Alexandra Stefanovic
Distinguished in Diffuse Large B-Cell Lymphoma (DLBCL)
Dr. Alexandra Stefanovic
Hematology Oncology | Hematology
Distinguished in Diffuse Large B-Cell Lymphoma (DLBCL)
Dr. Alexandra Stefanovic
Hematology Oncology | Hematology

Duke Blood Cancer Center

2400 Pratt St, 
Durham, NC 
 (0.1 miles away)
919-684-8964
Languages Spoken:
English, French, German, Italian, Spanish
See accepted insurances
Accepting New Patients
Offers Telehealth

I am convinced that caring for patients with malignant hematologic diseases requires not only up-to-date medical knowledge, but also an understanding of the individual patient's needs and circumstances. I encourage patients to take an active role in their treatment and recovery and I work with them to develop an individualized treatment plan that includes the most advanced therapies available today. My practice focuses primarily on disorders of the lymphatic system (Hodgkin and non-Hodgkin lymphoma and chronic lymphocytic leukemia). As an integral part of my clinical activities, I am dedicated to teaching young physicians at all levels of training and educating the next generation of hematologists. Dr. Stefanovic is rated as a Distinguished provider by MediFind in the treatment of Diffuse Large B-Cell Lymphoma (DLBCL). Her top areas of expertise are Waldenstrom Macroglobulinemia, Diffuse Large B-Cell Lymphoma (DLBCL), Marginal Zone Lymphoma (MZL), Large-Cell Immunoblastic Lymphoma, and Bone Marrow Aspiration.

VIEW MORE DIFFUSE LARGE B-CELL LYMPHOMA (DLBCL) DOCTORS

Areas of Expertise

MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.

Learn more about MediFind’s expert tiers

Find Dr. Long's expertise for a condition
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    • Distinguished
    • Acute Myeloblastic Leukemia without Maturation
      Dr. Long is
      Distinguished
      . Learn about Acute Myeloblastic Leukemia without Maturation.
      See more Acute Myeloblastic Leukemia without Maturation experts
    • Acute Myeloid Leukemia (AML)
      Dr. Long is
      Distinguished
      . Learn about Acute Myeloid Leukemia (AML).
      See more Acute Myeloid Leukemia (AML) experts
    • Multiple Myeloma
      Dr. Long is
      Distinguished
      . Learn about Multiple Myeloma.
      See more Multiple Myeloma experts
    • Relapsed Refractory Multiple Myeloma (RRMM)
      Dr. Long is
      Distinguished
      . Learn about Relapsed Refractory Multiple Myeloma (RRMM).
      See more Relapsed Refractory Multiple Myeloma (RRMM) experts
    • Smoldering Multiple Myeloma
      Dr. Long is
      Distinguished
      . Learn about Smoldering Multiple Myeloma.
      See more Smoldering Multiple Myeloma experts
    • Advanced
    • Acute Myeloblastic Leukemia with Maturation
      Dr. Long is
      Advanced
      . Learn about Acute Myeloblastic Leukemia with Maturation.
      See more Acute Myeloblastic Leukemia with Maturation experts
    • Bone Marrow Transplant
      Dr. Long is
      Advanced
      . Learn about Bone Marrow Transplant.
      See more Bone Marrow Transplant experts
    • Childhood Acute Myeloid Leukemia
      Dr. Long is
      Advanced
      . Learn about Childhood Acute Myeloid Leukemia.
      See more Childhood Acute Myeloid Leukemia experts
    • Chronic Graft Versus Host Disease (cGvHD)
      Dr. Long is
      Advanced
      . Learn about Chronic Graft Versus Host Disease (cGvHD).
      See more Chronic Graft Versus Host Disease (cGvHD) experts
    • Graft Versus Host Disease (GvHD)
      Dr. Long is
      Advanced
      . Learn about Graft Versus Host Disease (GvHD).
      See more Graft Versus Host Disease (GvHD) experts
    • Myelodysplastic Syndrome (MDS)
      Dr. Long is
      Advanced
      . Learn about Myelodysplastic Syndrome (MDS).
      See more Myelodysplastic Syndrome (MDS) experts
    • Experienced
    • Acute Lymphoblastic Leukemia (ALL)
      Dr. Long is
      Experienced
      . Learn about Acute Lymphoblastic Leukemia (ALL).
      See more Acute Lymphoblastic Leukemia (ALL) experts
    • Acute Myelomonocytic Leukemia
      Dr. Long is
      Experienced
      . Learn about Acute Myelomonocytic Leukemia.
      See more Acute Myelomonocytic Leukemia experts
    • Adult T-Cell Leukemia
      Dr. Long is
      Experienced
      . Learn about Adult T-Cell Leukemia.
      See more Adult T-Cell Leukemia experts
    • Agranulocytosis
      Dr. Long is
      Experienced
      . Learn about Agranulocytosis.
      See more Agranulocytosis experts
    • Aplastic Anemia
      Dr. Long is
      Experienced
      . Learn about Aplastic Anemia.
      See more Aplastic Anemia experts
    • B-Cell Lymphoma
      Dr. Long is
      Experienced
      . Learn about B-Cell Lymphoma.
      See more B-Cell Lymphoma experts
    View All 50 Experienced Conditions
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