Quick answers
- Does Karen Isaacs accept Medicare assignment?
- Yes. Medicare's clinician data says Karen Isaacs 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 Karen Isaacs see?
- In 2024, CMS data shows 392 Original Medicare patients and 986 services for Karen Isaacs. This counts Original Medicare only and measures volume, not quality.
- What is Karen Isaacs's NPI number?
- 1457589533. 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 Isaacs, 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 | 392 |
|---|---|
| Services billed to Medicare | 986 |
| Different services or procedures | 67 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Insertion of needle into vein for collection of blood sample (36415)179 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)149 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)127 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)115 services
- 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's (G2211)71 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 pressure71%
- High cholesterol70%
- Arthritis48%
- Diabetes30%
- Anxiety28%
- Depression26%
Hospitals where Karen Isaacs works
Medicare's Facility Affiliation Data lists Karen Isaacs 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.
- Prisma Health Greenville Memorial HospitalGreenville, SC · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 420078
- Prisma Health Greer Memorial HospitalGreer, SC · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 420033
- Prisma Health Patewood HospitalGreenville, SC · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: not listed by Medicare · CCN 420102
- Watauga Medical CenterBoone, NC · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 340051
Practice locations
Addresses where Karen Isaacs is enrolled with Medicare (CMS data updated October 2, 2026).
- 109 Physicians Dr, Suite AGreer, SC 29650 (864) 797‑9150
Group practices
Medicare enrollment lists Karen Isaacs as a member of this group (CMS data updated October 2, 2026).
- Prisma Health University Medical Group2,493 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Greer
Clinicians with the same Medicare primary specialty in Greer, SC — not a recommendation.
Other clinicians in Prisma Health University Medical Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Wake Forest University School Of Medicine |
| Graduation year | 2009 (17 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1457589533 |
| 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