Quick answers
- Does Charleen K. Nosar accept Medicare assignment?
- Yes. Medicare's clinician data says Charleen K. Nosar 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 Charleen K. Nosar see?
- In 2024, CMS data shows 242 Original Medicare patients and 773 services for Charleen K. Nosar. This counts Original Medicare only and measures volume, not quality.
- What is Charleen K. Nosar's NPI number?
- 1376791483. 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 Charleen K. Nosar, 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 | 242 |
|---|---|
| Services billed to Medicare | 773 |
| Different services or procedures | 31 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)328 services
- Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)148 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)47 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)43 services
- Administration of influenza virus vaccine (G0008)17 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 cholesterol75%
- High blood pressure69%
- Arthritis47%
- Diabetes33%
- Ischemic heart disease26%
- Chronic kidney disease26%
Hospitals where Charleen K. Nosar works
Medicare's Facility Affiliation Data lists Charleen K. Nosar 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.
- Inova Fairfax HospitalFalls Church, VA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 490063
Practice locations
Addresses where Charleen K. Nosar is enrolled with Medicare (CMS data updated October 2, 2026).
- 180 Maple Ave WVienna, VA 22180 (703) 938‑5300
- 24801 Pinebrook Rd, Suite 110Chantilly, VA 20152 (703) 722‑2500
- 3300 Gallows RdFalls Church, VA 22042 (703) 776‑4001
- 44045 Rivderside PkwyLeesburg, VA 20176 (703) 858‑6000
- 6230 Rolling Rd, Suite IjSpringfield, VA 22152 (571) 565‑6460
Group practices
Medicare enrollment lists Charleen K. Nosar as a member of these groups (CMS data updated October 2, 2026).
- Inova Health Care Services1,817 clinicians in the group
- Inova Physician Partners LLC262 clinicians in the group
- Inova Ucc LLC155 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Vienna
Clinicians with the same Medicare primary specialty in Vienna, VA — not a recommendation.
Other clinicians in Inova Health Care Services
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2008 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1376791483 |
| 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