Quick answers
- Does Marcelle Nkombengnondo accept Medicare assignment?
- Yes. Medicare's clinician data says Marcelle Nkombengnondo 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 Marcelle Nkombengnondo see?
- In 2024, CMS data shows 481 Original Medicare patients and 3,463 services for Marcelle Nkombengnondo. This counts Original Medicare only and measures volume, not quality.
- What is Marcelle Nkombengnondo's NPI number?
- 1538308937. 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 Marcelle Nkombengnondo, 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 | 481 |
|---|---|
| Services billed to Medicare | 3,463 |
| Different services or procedures | 7 |
| Participating Medicare provider | Yes |
| Average age of these patients | 78 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)3,018 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)219 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)195 services
- Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)19 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%
- Arthritis63%
- Diabetes48%
- Ischemic heart disease48%
- Stroke or mini-stroke45%
Hospitals where Marcelle Nkombengnondo works
Medicare's Facility Affiliation Data lists Marcelle Nkombengnondo 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.
- Adventist Healthcare Shady Grove Medical CenterRockville, MD · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 210057
- Adventist Healthcare White Oak Medical CenterSilver Spring, MD · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 210016
- Holy Cross Germantown HospitalGermantown, MD · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 210065
- Suburban HospitalBethesda, MD · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 210022
- University of MD Capital Region Medical CenterUpper Marlboro, MD · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 210003
Practice locations
Addresses where Marcelle Nkombengnondo is enrolled with Medicare (CMS data updated October 2, 2026).
- 227 Deer Meadow LnRockville, MD 20850 (301) 537‑2709
- 901 Harry S Truman DrLargo, MD 20774 (240) 677‑1000
- 9901 Medical Ctr DrRockville, MD 20850 (240) 826‑7578
Group practices
Medicare enrollment lists Marcelle Nkombengnondo as a member of these groups (CMS data updated October 2, 2026).
- Usacs Integrated Acute Care Services of Maryland LLC179 clinicians in the group
- Adfinitas Health at Umcap LLC52 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Rockville
Clinicians with the same Medicare primary specialty in Rockville, MD — not a recommendation.
Other clinicians in Usacs Integrated Acute Care Services of Maryland LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2006 (20 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1538308937 |
| 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