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Gregory R. Simonson, PHD, LP

Psychologists (Clinical Psychologist)

4000 28th Ave S
Moorhead, MN 56560

Who else practices at this address →

Clay County is a federal mental health shortage area; it also includes primary care (11% of residents) shortage areas. About shortage areas

Call (701) 234-3200

At a glance

Years since graduation
8
In the NPI registry since
2019

The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. What an NPI is

Education and training

  • 2019Registered with an NPI (national billing number; not a license date)

Medicare’s Care Compare data doesn’t list this clinician’s medical school. Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).

Specialties and state licenses

  • Clinical Psychologist primary
    MN license 6448

As reported to the NPI registry. To confirm a license is current, check the state medical board.

Map: Psychologists per capita by county →

Where they work

Medical groups

Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.

Other Psychologists clinicians in Moorhead

Sources

NPI registry (CMS NPPES, November 2026; record last updated June 15, 2026), Medicare Care Compare, Medicare Physician & Other Practitioners (2024), Medicare Part D Prescribers (2024) and Open Payments (2025). Information is self-reported or billed data and may be out of date; call before visiting.

NPI 1942850003. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.