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Plastic and Reconstructive Surgery

Diana Y. Yoon-Schwartz, MD

Works at hospitals in Smithtown, NY · New York

Summary

Dr. Diana Y. Yoon-Schwartz, MD is a plastic surgeon at 77 New St, Apt 1, Huntington, NY 11743. Phone: (631) 923-2090. Accepts Medicare assignment. NPI 1306003405. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

  • Specialty: Plastic surgeon (Medicare lists Plastic and Reconstructive Surgery)
  • Address: 77 New St, Apt 1, Huntington, NY 11743 · Directions
  • Phone: (631) 923‑2090
  • Medicare: Accepts Medicare assignment
  • Hospital: St Catherine of Siena Hospital
  • Medical school: New York University School Of Medicine · graduated 1998 (28 years since medical school)
  • Gender (as listed): Female
Call(631) 923‑2090 NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Diana Y. Yoon-Schwartz, 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 Diana Y. Yoon-Schwartz accept Medicare assignment?
Yes. Medicare's clinician data says Diana Y. Yoon-Schwartz 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.
What is Diana Y. Yoon-Schwartz's NPI number?
1306003405. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Diana Y. Yoon-Schwartz works

Medicare's Facility Affiliation Data lists Diana Y. Yoon-Schwartz 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.

  • St Catherine of Siena HospitalSmithtown, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330401

Practice locations

Addresses where Diana Y. Yoon-Schwartz is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other Plastic and Reconstructive Surgery doctors in New York →

Other plastic surgeons in Huntington

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

All plastic surgeons in Huntington →

Clinician information

CredentialMD
Medical schoolNew York University School Of Medicine
Graduation year1998 (28 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1306003405
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. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  5. Medicare Care Compare — official Medicare tool to look up clinicians