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Internal Medicine

ADVANCED INTERNAL MEDICINE GROUP PC

Identity confirmed via CMS NPPES · September 30, 2026 · A directory match is not a coverage approval.

Is this your practice? This listing was imported from public provider identity data (CMS NPPES) and has not yet been claimed. Claim this listing to confirm the practice details. Plan acceptance stays unpublished until the practice reports it.

Public record

NPI 1669548087 · enumerated 2006-11-28 · record updated 2026-04-29. Source: CMS NPPES. A listing is not a TRICARE network approval.

Authorized official: Dr. LEON SCHWECHTER DO, President · (516) 352-8100

Addresses and phones

Specialties

  • Internal Medicine, Geriatric Medicine 207RG0300X
  • Internal Medicine 207R00000X · Primary · License 138681 NY

In this directory

Locations and evidence

  • Practice location GREENVALE, NY, 115481219
    Accepting new patientsNot reportedCMS NPPES · September 30, 2026

Plan acceptance

  • No published plan acceptance yet. Confirm directly with the practice, or claim this listing if it's yours.