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Nurse Practitioner

Karen M. Robertson, NP

Works at hospitals in Greenville, SC · Simpsonville, SC · South Carolina

Summary

Karen M. Robertson, NP is a nurse practitioner at 203 Mills Ave, Greenville, SC 29605. Phone: (864) 271-1844. Accepts Medicare assignment. In 2024, Karen M. Robertson had 363 Original Medicare patients and 39,600 services. NPI 1447225610. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Karen M. Robertson, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Karen M. Robertson accept Medicare assignment?
Yes. Medicare's clinician data says Karen M. Robertson 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 M. Robertson see?
In 2024, CMS data shows 363 Original Medicare patients and 39,600 services for Karen M. Robertson. This counts Original Medicare only and measures volume, not quality.
What is Karen M. Robertson's NPI number?
1447225610. 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 M. Robertson, 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 patients363
Services billed to Medicare39,600
Different services or procedures39
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Injection, ferric carboxymaltose, 1 mg (J1439)35,250 services
  2. Injection, epoetin alfa-epbx, biosimilar, (retacrit) (for non-esrd use), 1000 units (Q5106)1,420 services
  3. Insertion of needle into vein for collection of blood sample (36415)377 services
  4. 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)313 services
  5. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)286 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%
  • Chronic kidney disease75%
  • Diabetes58%
  • Arthritis55%
  • Ischemic heart disease48%

Hospitals where Karen M. Robertson works

Medicare's Facility Affiliation Data lists Karen M. Robertson 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.

Practice locations

Addresses where Karen M. Robertson is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Karen M. Robertson as a member of this group (CMS data updated October 2, 2026).

  • Carolina Nephrology PA37 clinicians in the group

Specialties

Find other clinicians: Nurse Practitioner, South Carolina →

Other nurse practitioners in Greenville

Clinicians with the same Medicare primary specialty in Greenville, SC — not a recommendation.

All nurse practitioners in Greenville →

Other clinicians in Carolina Nephrology PA

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialNP
Graduation year2005
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1447225610
CorrectionsReport 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

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians