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Nurse Practitioner

Nadine L. Lavassar, NP

Works at hospitals in Charleston, SC · Hilton Head Island, SC · South Carolina

Summary

Nadine L. Lavassar, NP is a nurse practitioner at 171 Ashley Ave, Charleston, SC 29425. Phone: (843) 792-1414. Accepts Medicare assignment. In 2024, Nadine L. Lavassar had 93 Original Medicare patients and 178 services. NPI 1861146847. 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 Nadine L. Lavassar, 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 Nadine L. Lavassar accept Medicare assignment?
Yes. Medicare's clinician data says Nadine L. Lavassar 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 Nadine L. Lavassar see?
In 2024, CMS data shows 93 Original Medicare patients and 178 services for Nadine L. Lavassar. This counts Original Medicare only and measures volume, not quality.
What is Nadine L. Lavassar's NPI number?
1861146847. 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 Nadine L. Lavassar, 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 patients93
Services billed to Medicare178
Different services or procedures5
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)112 services
  2. 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)48 services
  3. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)14 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%
  • Arthritis75%
  • Anxiety46%
  • Depression37%
  • Diabetes35%

Hospitals where Nadine L. Lavassar works

Medicare's Facility Affiliation Data lists Nadine L. Lavassar 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 Nadine L. Lavassar is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Nadine L. Lavassar as a member of this group (CMS data updated October 2, 2026).

  • University Medical Associates of the Medical University of South Carol1,668 clinicians in the group

Specialties

Find other clinicians: Nurse Practitioner, South Carolina →

Other nurse practitioners in Charleston

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

All nurse practitioners in Charleston →

Other clinicians in University Medical Associates of the Medical University of South Carol

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

Clinician information

CredentialNP
Graduation year2021
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1861146847
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