Gwynn Long, M.D.
NPI 1114001260 · Hematology & Oncology Physician · Durham, NC
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gwynn Long, M.D. is a Hematology & Oncology Physician provider in Durham, NC (NPI 1114001260).
Provider details
- NPI number
- 1114001260
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 96-01380 (NC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
345 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 143 | $86 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 67 | $15 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 66 | $129 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 33 | $110 |
| Collection of Stem Cells for Transplantation38206 | 20 | $73 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Lenalidomide | 115 | 27 |
| Lenalidomidebrand: Revlimid | 52 | 16 |
| Acyclovir | 48 | 14 |
| Pomalidomidebrand: Pomalyst | 33 | 13 |
| Ondansetron Hcl | 18 | 11 |
| Ixazomib Citratebrand: Ninlaro | 16 | — |
| Venetoclaxbrand: Venclexta | 15 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-25
- Last updated
- 2013-08-18
Frequently asked questions
- What is Gwynn Long's NPI number?
- Gwynn Long's National Provider Identifier (NPI) is 1114001260, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gwynn Long's specialty?
- Gwynn Long is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Gwynn Long located?
- Gwynn Long's practice location on file with NPPES is 2100 Erwin Rd, Durham, NC 27710-0001.
- What is Gwynn Long's phone number?
- The practice phone number listed in the NPPES registry for Gwynn Long is (919) 620-4467.
- Does Gwynn Long accept Medicare?
- Gwynn Long is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gwynn Long's NPI active?
- Yes — Gwynn Long's NPI (1114001260) is active in the NPPES registry as of the last update on 2013-08-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.