Quick answers
- Does Julianna G. Marwell accept Medicare assignment?
- Yes. Medicare's clinician data says Julianna G. Marwell accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Julianna G. Marwell see?
- In 2024, CMS data shows 211 Original Medicare patients and 343 services for Julianna G. Marwell. This counts Original Medicare only and measures volume, not quality.
- What is Julianna G. Marwell's NPI number?
- 1508128075. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Julianna G. Marwell, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 211 |
|---|---|
| Services billed to Medicare | 343 |
| Different services or procedures | 12 |
| Participating Medicare provider | Yes |
| Average age of these patients | 82 |
Most frequent services
- Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)87 services
- Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)83 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)54 services
- New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)41 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)25 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Alzheimer's disease or dementia56%
- Arthritis53%
- Depression42%
- Ischemic heart disease41%
Hospitals where Julianna G. Marwell works
Medicare's Facility Affiliation Data lists Julianna G. Marwell at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Duke Regional HospitalDurham, NC · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 340155
- Duke University HospitalDurham, NC · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 340030
Practice locations
Addresses where Julianna G. Marwell is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.
- 2301 Erwin RdDurham, NC 27705 (919) 684‑8111
- 234 Crooked Creek PkwyDurham, NC 27713 (919) 684‑8111
- 2351 Erwin RdDurham, NC 27705 (919) 684‑8111
- 2701 Pickett RdDurham, NC 27705 (919) 419‑9600
- 30 Duke Medicine CirDurham, NC 27710 (919) 684‑8111
Group practices
Medicare enrollment lists Julianna G. Marwell as a member of these groups (CMS data updated October 2, 2026).
- Legacy Healthcare Services Inc3,223 clinicians in the group
- Duke Health Integrated Practice, Inc3,185 clinicians in the group
Specialties
- Geriatric Medicineprimary
Other geriatricians in Durham
Clinicians with the same Medicare primary specialty in Durham, NC — not a recommendation.
Other clinicians in Legacy Healthcare Services Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2012 (14 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1508128075 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians