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Psychiatry & Neurology, Psychiatry

Dr. MATTHEW NIEDZWIECKI MD

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 Plan acceptance stays unpublished until the practice reports it.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 1174859284 · enumerated 2009-10-23 · record updated 2026-01-12. Source: CMS NPPES. A listing is not a TRICARE network approval.

Addresses and phones

Specialties

  • Psychiatry & Neurology, Psychiatry 2084P0800X · License 22784 NH
  • Psychiatry & Neurology, Psychiatry 2084P0800X · License C156972 CA
  • Psychiatry & Neurology, Psychiatry 2084P0800X · License 2017-01279 NC
  • Psychiatry & Neurology, Psychiatry 2084P0800X · License V8156 TX
  • Psychiatry & Neurology, Psychiatry 2084P0800X · Primary · License 036.130526 IL
  • Psychiatry & Neurology, Psychiatry 2084P0800X · License 25MA10564100 NJ
  • Psychiatry & Neurology, Psychiatry 2084P0800X · License MD60749657 WA

In this directory

Locations and evidence

  • Practice location LOMA LINDA, CA, 923543854
    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.