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Neurology

Shawn L. Masia, MD

Works at hospitals in Pinehurst, NC · Hartford, CT · Washington, DC … · North Carolina, Connecticut, District of Columbia, Virginia

Summary

Dr. Shawn L. Masia, MD is a neurologist at 7 White Oak Dr, Port Washington, NY 11050. Phone: (734) 773-4314. Accepts Medicare assignment. In 2024, Shawn L. Masia had 576 Original Medicare patients and 2,523 services. NPI 1881799351. 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 Shawn L. Masia, 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 Shawn L. Masia accept Medicare assignment?
Yes. Medicare's clinician data says Shawn L. Masia 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 Shawn L. Masia see?
In 2024, CMS data shows 576 Original Medicare patients and 2,523 services for Shawn L. Masia. This counts Original Medicare only and measures volume, not quality.
What is Shawn L. Masia's NPI number?
1881799351. 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 Shawn L. Masia, 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 patients576
Services billed to Medicare2,523
Different services or procedures16
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Continuous intraoperative neurophysiology monitoring, from outside the operating room (remote or nearby), per patient, (attention directed exclusively to one patient) each 15 minutes (list in addition to primary procedure) (G0453)1,125 services
  2. Placement of skin electrodes and measurement of stimulated sites on arms and legs (95938)527 services
  3. Needle measurement of electrical activity in arm or leg muscles, 2 extremities (95861)375 services
  4. Placement of skin electrodes and measurement of central motor stimulation in arms and legs (95939)268 services
  5. Needle measurement of electrical activity in arm, leg, trunk or head muscles, limited study (95870)133 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%
  • Anxiety40%
  • Depression36%
  • Diabetes35%

Hospitals where Shawn L. Masia works

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

Group practices

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

  • American Neuromonitoring Associates, PC30 clinicians in the group

Specialties

Find other Neurology doctors in New York →

Other neurologists in New York

Clinicians with the same Medicare primary specialty in New York — not a recommendation.

All neurologists in New York →

Other clinicians in American Neuromonitoring Associates, PC

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

Clinician information

CredentialMD
Medical schoolNew York University School Of Medicine
Graduation year2000 (26 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1881799351
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