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Medical Toxicology

Kim-Long Nguyen, MD

Works at hospitals in Greenville, SC · Greer, SC · Seneca, SC · South Carolina

Summary

Dr. Kim-Long Nguyen, MD is a medical toxicologist at 701 Grove Rd, Greenville, SC 29605. Phone: (864) 797-7100. Accepts Medicare assignment. In 2024, Kim-Long Nguyen had 126 Original Medicare patients and 175 services. NPI 1467013045. 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 Kim-Long Nguyen, 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 Kim-Long Nguyen accept Medicare assignment?
Yes. Medicare's clinician data says Kim-Long Nguyen 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 Kim-Long Nguyen see?
In 2024, CMS data shows 126 Original Medicare patients and 175 services for Kim-Long Nguyen. This counts Original Medicare only and measures volume, not quality.
What is Kim-Long Nguyen's NPI number?
1467013045. 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 Kim-Long Nguyen, 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 patients126
Services billed to Medicare175
Different services or procedures19
Participating Medicare providerYes
Average age of these patients66

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)67 services
  2. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)44 services
  3. Emergency department visit with moderate level of medical decision making (99284)24 services
  4. Critical care, first 30-74 minutes (99291)11 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%
  • Arthritis52%
  • Anxiety48%
  • Depression40%
  • Diabetes36%

Hospitals where Kim-Long Nguyen works

Medicare's Facility Affiliation Data lists Kim-Long Nguyen 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 Kim-Long Nguyen is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Kim-Long Nguyen as a member of this group (CMS data updated October 2, 2026).

  • Prisma Health University Medical Group2,493 clinicians in the group

Specialties

Find other Medical Toxicology doctors in South Carolina →

Other medical toxicologists in South Carolina

Clinicians with the same Medicare primary specialty in South Carolina — not a recommendation.

All medical toxicologists in South Carolina →

Other clinicians in Prisma Health University Medical Group

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

Clinician information

CredentialMD
Graduation year2019 (7 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1467013045
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