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Clinical Psychologist

Alyssa A. Greineisen, PSY

Sees patients in Hampton, VA · Chesapeake, VA · Virginia

Summary

Alyssa A. Greineisen, PSY is a clinical psychologist at 2202 Executive Dr, Suite C, Hampton, VA 23666. Phone: (757) 827-7707. Accepts Medicare assignment. NPI 1912558982. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: Clinical psychologist
  • Address: 2202 Executive Dr, Suite C, Hampton, VA 23666 · Directions (1 more location)
  • Phone: (757) 827‑7707
  • Medicare: Accepts Medicare assignment
  • Group practice: Genesis Counseling Center, Inc.
  • School: graduated 2017
  • Gender (as listed): Female
  • Telehealth: offered
Call(757) 827‑7707 NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Alyssa A. Greineisen, 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 Alyssa A. Greineisen accept Medicare assignment?
Yes. Medicare's clinician data says Alyssa A. Greineisen 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 Alyssa A. Greineisen's NPI number?
1912558982. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Alyssa A. Greineisen is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Alyssa A. Greineisen as a member of this group (CMS data updated October 2, 2026).

  • Genesis Counseling Center, Inc.65 clinicians in the group

Specialties

Find other clinicians: Clinical Psychologist, Virginia →

Other clinical psychologists in Hampton

Clinicians with the same Medicare primary specialty in Hampton, VA — not a recommendation.

All clinical psychologists in Hampton →

Other clinicians in Genesis Counseling Center, Inc.

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialPSY
Graduation year2017
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1912558982
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians