Diana GilbertManaging Principal, CPA - LI


Long Island Office

1998 Hillside Avenue
New Hyde Park, NY 11040


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Diana Gilbert, Managing Principal, CPA - LI

Our clients require a particular attention to detail and customer service. / like to feel as though I go “above and beyond” for my clients with regard to the service I provide to them. The clients I service are mostly small business taxpayers who need the assurance that they can always call on their accountant with any question or problem, big or small, and know that I will make the time for them whenever needed or get the job done for them efficiently  and professionally.  I make them feel as though I am an extension of their own business and staff, and therefore have developed  close relationships  with my  clients.

Outside of Adeptus  I enjoy spending time with my husband and 2 children.   During the fall and football season we travel every weekend to cheer on my son’s college football team, the Rhode Island Rams, at every game.  After football season,  I start to plan our annual Disney summer vacation; something we have done together with family and friends for the past 14 years.   It is a great place for our whole family to unwind and reconnect.

Professional Affiliations & Civic Involvement

  • Member AICPA
  • Member Long Island University – Post -Tax & Accounting  Institute


  • Managing Principal
  • CPA


  • Long Island University,  C.W. Post  Campus

Special Focus

  • Corporate & Individual Tax Estates and Trusts
  • Payroll Tax
  • Corporate State & Local Tax  Issues
  • General Accounting & Tax Auditing for Small Businesses
  • QuickBooks Setup, Consulting, & Maintenance
  • Bookkeeping
  • Business and Personal Mortgage Issues
  • General Income & Sales Tax Planning
  • Accommodation and Food Services
  • Construction Industry and Contractors
  • High-net Worth Individuals and Businesses
  • Privately-Held Enterprises
  • Real Estate Rental & Leasing

ContactDiana Gilbert

Adeptus Partners LLC