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Physician Assistant

Katie B. Guarino, PA

Works at hospitals in West Islip, NY · New York

Summary

Katie B. Guarino, PA is a physician assistant at 999 Franklin Ave, Garden City, NY 11530. Phone: (516) 629-3838. Accepts Medicare assignment. In 2024, Katie B. Guarino had 12 Original Medicare patients and 28 services. NPI 1063741361. 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 Katie B. Guarino, 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 Katie B. Guarino accept Medicare assignment?
Yes. Medicare's clinician data says Katie B. Guarino 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 Katie B. Guarino see?
In 2024, CMS data shows 12 Original Medicare patients and 28 services for Katie B. Guarino. This counts Original Medicare only and measures volume, not quality.
What is Katie B. Guarino's NPI number?
1063741361. 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 Katie B. Guarino, 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 patients12
Services billed to Medicare28
Different services or procedures5
Participating Medicare providerYes
Average age of these patients73

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%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%

Hospitals where Katie B. Guarino works

Medicare's Facility Affiliation Data lists Katie B. Guarino 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 Katie B. Guarino is enrolled with Medicare (CMS data updated October 2, 2026).

  • 999 Franklin AveGarden City, NY 11530
  • 999 Franklin Ave, Suite 300Garden City, NY 11530 (516) 629‑3838

Group practices

Medicare enrollment lists Katie B. Guarino as a member of this group (CMS data updated October 2, 2026).

  • Long Island Plastic Surgical Group, PC40 clinicians in the group

Specialties

Find other clinicians: Physician Assistant, New York →

Other physician assistants in Garden City

Clinicians with the same Medicare primary specialty in Garden City, NY — not a recommendation.

All physician assistants in Garden City →

Other clinicians in Long Island Plastic Surgical Group, PC

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

Clinician information

CredentialPA
Graduation year2009
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1063741361
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