Quick answers
- Does Karen S. Prill accept Medicare assignment?
- Medicare's clinician data says Karen S. Prill may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Karen S. Prill see?
- In 2024, CMS data shows 114 Original Medicare patients and 669 services for Karen S. Prill. This counts Original Medicare only and measures volume, not quality.
- What is Karen S. Prill's NPI number?
- 1902899818. 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 Karen S. Prill, 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 | 114 |
|---|---|
| Services billed to Medicare | 669 |
| Different services or procedures | 36 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Blood test, comprehensive group of blood chemicals (80053)127 services
- Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)124 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)107 services
- Insertion of needle into vein for collection of blood sample (36415)77 services
- Blood test, thyroid stimulating hormone (tsh) (84443)27 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 cholesterol68%
- Arthritis47%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)43%
- Chronic kidney disease39%
- Anxiety35%
Hospitals where Karen S. Prill works
Medicare's Facility Affiliation Data lists Karen S. Prill 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.
- Bon Secours Richmond Community HospitalRichmond, VA · Acute Care Hospital · Emergency services: listed by Medicare · CCN 490094
- Bon Secours St Marys HospitalRichmond, VA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 490059
- Fort Sanders Regional Medical CenterKnoxville, TN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 440125
- Russell County HospitalLebanon, VA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 490002
- Smyth County Community HospitalMarion, VA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 490038
Practice locations
Addresses where Karen S. Prill is enrolled with Medicare (CMS data updated October 2, 2026).
- 1915 White AveKnoxville, TN 37916 (865) 541‑1720
- 5875 Bremo Rd, Suite 209Richmond, VA 23226 (804) 287‑7804
- 5875 Bremo Rd, Suite 712Richmond, VA 23226 (804) 288‑8900
Group practices
Medicare enrollment lists Karen S. Prill as a member of these groups (CMS data updated October 2, 2026).
- Thompson Oncology Group65 clinicians in the group
- Bon Secours-Richmond Community Hospital LLC43 clinicians in the group
Specialties
- Medical Oncologyprimary
Other oncologists in Knoxville
Clinicians with the same Medicare primary specialty in Knoxville, TN — not a recommendation.
Other clinicians in Thompson Oncology Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Texas Medical Branch At Galveston |
| Graduation year | 1991 (35 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1902899818 |
| 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