Bone Marrow Transplant
Food InsecurityHematopoietic Stem Cell TransplantationMalnutrition
Dr. Gwynn D. Long, MD
NPI1114001260PAC ID8325233471
- Medicare services, 2024
- 345
- Medicare patients, 2024
- 151
- Part D claims, 2024
- 527
- Publications
- 43
- Clinical trials
- 2
- Practice address
- 2301 Erwin Rd, Durham, NC 27705
- Practice phone
- Call (919) 684-8111
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Long'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. Gwynn D. Long is a hematologist and oncologist in Durham, North Carolina
Dr. Long practices at Duke University Hospital in Durham, North Carolina, part of Duke University.
Dr. Long's NPI, 1114001260, was assigned on October 25, 2006. Dr. Long graduated from Wake Forest University School of Medicine in 1983. Dr. Long holds North Carolina license 96-01380.
NPI and contact details
- NPI
- 1114001260NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8325233471
- NPI enumeration date
- October 25, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (919) 684-8111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 69
- Medical school graduation
- 1983
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gwynn D. Long practices at Duke University Hospital in Durham, North Carolina
Dr. Long's primary practice is Duke University Hospital, at 2301 Erwin Rd, Durham, NC 27705 in Durham County. The practice phone is (919) 684-8111.
- Duke University Hospital2301 Erwin Rd, Durham, NC 27705 · Durham CountyPhone(919) 684-8111
Source: Dmand AI Affiliation Data
Dr. Gwynn D. Long is affiliated with 2 sites of care and 1 medical group
Dr. Long's primary practice is Duke University Hospital in Durham, North Carolina, part of Duke University. The medical group on file is Duke Health Integrated Practice. Dmand AI also links Dr. Long to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Gwynn D. Long's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Long practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Duke University Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every hospital where Dr. Long practices
Dmand AI maps EHR vendors, IT decision makers and buying committees across Duke University and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Gwynn D. Long is one of 420 hematologists and oncologists in North Carolina
Hematology and oncology is Dr. Long's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Long is licensed in North Carolina.
Specialties and state licenses
- Hematology and oncology, North CarolinaPrimary
Hematologists and oncologists near Dr. Long
Counts of hematologists and oncologists with a Dmand AI profile, by place and practice. Each opens the list.
420hematologists and oncologists in North Carolina77hematologists and oncologists in Durham57hematologists and oncologists at Duke University Hospital
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Gwynn D. Long billed Medicare for 345 services in 2024
CMS data shows 345 Medicare services from Dr. Long across 6 procedure codes in 2024, for 151 Medicare patients. Medicare paid $22,351 for them.
Medicare services, 2024345
Medicare patients151
Paid by Medicare$22,351
Procedure codes6
Dr. Long's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1912024: 25835%
- Other services
- 2023: 02024: 67
- Surgery
- 2023: 02024: 20
Where Dr. Long's Medicare services took place, 2024
- In an office31290%
- In a facility3310%
Dr. Long compared with the North Carolina median for hematologists and oncologists, 2024
- Dr. Long
- North Carolina median
- Medicare services
- 345vs 45023% below
- Medicare patients
- 151vs 18016% below
- Part D claims
- 364vs 32412% above
Medians across 402 hematologists and oncologists in North Carolina with Dmand AI profiles that report each measure.
Dr. Long'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. Long?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Long and other hematologists and oncologists in North Carolina.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gwynn D. Long treated 151 Medicare patients in 2024, average age 70
CMS counts 151 Medicare patients who saw Dr. Long in 2024. The largest group is 65 to 74, with 81 patients. 75% of them have high blood pressure, and 66% have high cholesterol. Their average risk score is 2.90, 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. Long's median patient age at 71, with 47% women.
Medicare patients, 2024151
Average age70
Average risk score2.90
Dr. Long's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Long's Medicare patients by sex, 2024
- Women7248%
- Men7952%
Chronic conditions among Dr. Long's Medicare patients, 2024
- High blood pressure75%
- High cholesterol66%
- Arthritis42%
- Chronic kidney disease33%
- Anxiety28%
- Diabetes28%
- Mood disorders26%
- Ischemic heart disease24%
Share of Medicare patients with each condition. A patient can have several.
Dr. Long'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
- Women47%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gwynn D. Long wrote 527 Medicare Part D claims in 2024
In 2024, Dr. Long wrote 527 Medicare Part D claims for 106 patients. 64% of them were for generic drugs. CMS names the drug for 364 of them, across 12 drugs with 11 or more claims each, at $3,632,475 in total drug cost. In 2023, CMS named 203 claims across 9 drugs.
Part D claims, 2024527
Drugs named by CMS12
Total drug cost$3.6M
Part D patients106
Dr. Long's Part D claims by kind of drug, 2024
- Generic338 claims64%
- Brand-name and other189 claims36%
Dr. Long'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. Long's Part D claims, 2024
- Opioids4%20 of 527 claims
- Antibiotics5%25 of 527 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: 2032024: 36479%
Drugs named by CMS: 12 in 2024, 9 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
How Dr. Gwynn D. Long takes part in Medicare
Dr. Long accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Find hematologists and oncologists like Dr. Long by procedure volume and prescribing
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Gwynn D. Long has 43 publications on record
Dmand AI links 43 papers to Dr. Long, published from 2010 to 2025. 2020 was the busiest year, with 6. The most frequent topics are Hematopoietic Stem Cell Transplantation, Graft vs Host Disease and Transplantation Conditioning. Dr. Long has published most often in Bone Marrow Transplant. Dr. Long's most frequent co-authors are Anthony D. Sung, MD, Taewoong Choi, MD and Yubin Kang, MD.
Papers43
Years published2010 to 2025
Dr. Long's papers by year, 2014 to 2025
Topics Dr. Long writes about most
- Hematopoietic Stem Cell Transplantation
- Graft vs Host Disease
- Transplantation Conditioning
- Transplantation, Homologous
- Hematologic Neoplasms
- Multiple Myeloma
- Cord Blood Stem Cell Transplantation
- Antineoplastic Agents
Dr. Long's most frequent co-authors
Recent publications by Dr. Long
Support Care Cancer
Anti-Infective Agents, LocalBathsChlorhexidine
Financial StressHematopoietic Stem Cell TransplantationLeukemia
Transplant Cell Ther
AminopyridinesBronchiolitis Obliterans SyndromeGraft vs Host Disease
Antineoplastic Combined Chemotherapy ProtocolsDexamethasoneMultiple Myeloma
See who Dr. Long researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Long 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. Gwynn D. Long has worked on 2 clinical trials
Dmand AI links Dr. Long to 2 clinical trials. 1 is still active or recruiting. Conditions studied include Bronchiolitis Obliterans Syndrome, Cytomegalovirus Infections and Herpesviridae Infections.
Clinical trials with Dr. Long by phase
- 1Phase 1: 1 trial
- NonePhase 2: no trials
- 1Phase 3: 1 trial
- NonePhase 4: no trials
Conditions in Dr. Long's trials
- Bronchiolitis Obliterans Syndrome
- Cytomegalovirus Infections
- Herpesviridae Infections
- Organizing Pneumonia
Investigators on the most trials with Dr. Long
- Patrick Roy Aguilar, MD1 shared trial
- Oleg E. Akilov, MD, PhD1 shared trial
- Jennifer Marie Alexander-Brett, MD1 shared trial
Recent clinical trials with Dr. Long
Trial of CMV Specific DLIs From 3-6/6 HLA Matched Family Member Following Nonmyeloablative Allo SCT (opens in a new tab)
TerminatedPhase 1
Cytomegalovirus InfectionsHerpesviridae InfectionsCMV Specific T Cell donor lymphocyte infusion
Extracorporeal Photopheresis for Medicare Recipients of Lung Allografts (opens in a new tab)
Active, not recruitingPhase 3
Bronchiolitis Obliterans SyndromeOrganizing PneumoniaExtracorporeal Photopheresis (ECP)
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Gwynn D. Long received $358 in industry payments from 2016 to 2023
CMS Open Payments shows 6 general payments to Dr. Long from 5 drug and device companies from 2016 to 2023. Education make up the largest share, 72% of the total. Jazz Pharmaceuticals Inc. paid the most, $102.
General payments to Dr. Long by program year, 2016 to 2023
General payments to Dr. Long by kind, 2016 to 2023
$358in total
- Education$25672%
- Food and beverage$10228%
Companies that paid Dr. Long the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gwynn D. Long graduated from Wake Forest University School of Medicine
Dr. Long graduated from Wake Forest University School of Medicine in 1983.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gwynn D. Long'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand 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) |
| 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) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. Gwynn D. Long
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. Gwynn D. Long's NPI number?
Dr. Gwynn D. Long's NPI number is 1114001260. It was assigned on October 25, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gwynn D. Long?
Dr. Gwynn D. Long is a hematologist and oncologist in Durham, North Carolina. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. Gwynn D. Long practice?
Dr. Long practices at 2301 Erwin Rd, Durham, NC 27705. Dr. Long's primary practice is Duke University Hospital in Durham, North Carolina, part of Duke University. Dmand AI also links Dr. Long to 1 group practice or clinic.
What is Dr. Gwynn D. Long's office phone number?
The practice phone on file for Dr. Long is (919) 684-8111.
What is Dr. Gwynn D. Long's medical license number?
Dr. Long holds North Carolina license 96-01380.
Which hospitals is Dr. Gwynn D. Long affiliated with?
Dr. Long practices at Duke University Hospital in Durham, North Carolina.
What medical group is Dr. Gwynn D. Long part of?
Dr. Long is linked to Duke Health Integrated Practice.
Does Dr. Gwynn D. Long accept Medicare?
Yes. CMS data shows Dr. Long billed Medicare for 345 services in 2024, and Dr. Long accepts Medicare assignment.
How many Medicare patients does Dr. Gwynn D. Long see?
CMS counts 151 Medicare patients who saw Dr. Long in 2024, with an average age of 70.
What services does Dr. Gwynn D. Long bill to Medicare?
In 2024, Dr. Long's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and office visit, established patient (99215).
Show 6 more questionsShow fewer questions
Where did Dr. Gwynn D. Long go to medical school?
Dr. Long graduated from Wake Forest University School of Medicine in 1983.
What drugs does Dr. Gwynn D. Long prescribe most?
In 2024 Medicare Part D data, Dr. Long's most prescribed drugs by claims were Lenalidomide, Revlimid and Acyclovir.
Has Dr. Gwynn D. Long received payments from drug or device companies?
CMS Open Payments shows $358 in general payments to Dr. Long from 5 companies from 2016 to 2023. The largest total came from Jazz Pharmaceuticals Inc.
How long has Dr. Gwynn D. Long been practicing?
Dr. Long graduated from medical school in 1983, 43 years ago.
Does Dr. Gwynn D. Long do research?
Dmand AI links 43 publications to Dr. Long, published from 2010 to 2025. Dr. Long has worked on 2 clinical trials.
Who does Dr. Gwynn D. Long publish with?
Dr. Long's most frequent co-authors are Anthony D. Sung, MD (22 shared papers), Taewoong Choi, MD (14 shared papers) and Yubin Kang, MD (7 shared papers).
Selling to hematology and oncology practices?
See hematologists and oncologists in North Carolina by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card