DR. ALEXANDRA CHRISTIANSEN PSYD
NPI 1881583680
Psychologist in Fond Du Lac, WI

Active since June 28, 2025PECOS Enrolled
751 COUNTY ROAD K, FOND DU LAC, WI 54937(920) 929-3800 Get Directions Write a Review

NPPES record last updated: February 26, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Alexandra Christiansen Psyd NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. ALEXANDRA CHRISTIANSEN PSYD (NPI 1881583680) is an individual psychologist in Fond Du Lac, Wisconsin, licensed in Wisconsin (5249-57) and active in the NPI registry since June 2025. She is enrolled in Medicare PECOS and is a graduate of Other (2022).

NPPES Registry Identity

NPI1881583680
Entity TypeIndividualFemale
Primary Taxonomy103T00000X
Provider Legal NameDR. ALEXANDRA CHRISTIANSENCredential: PSYD
Location Address751 COUNTY ROAD KFond Du Lac, WI 54937-6007
Mailing AddressPo Box 273Appleton, WI 54912-0273
Sole ProprietorNo
Medical School CMSOtherGraduated 2022
Enumeration DateJune 28, 2025
Last NPPES UpdateFebruary 26, 2026
NPPES CertifiedFebruary 26, 2026
✔ NPI 1881583680 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
License✔ Licensed in WI · 5249-57
Definition
A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public.
Also ListedPsychologist · ClinicalTaxonomy 103TC0700X · License 071-022470 (IL)
751 COUNTY ROAD K, Fond Du Lac, WI 54937

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Alexandra Christiansen Psyd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID4981182268
PECOS Enrollment IDI20260128003267
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Alexandra Christiansen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Primary Care
3250 N ARLINGTON HEIGHTS RD
Arlington Heights, IL 60004
  • Reassigned Medicare billing, Illinois enrollment
  • 1,047 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Psychiatry & Neurology (Psychiatry)
751 COUNTY ROAD K
FOND DU LAC, WI 54937
Psychiatry & Neurology (Child & Adolescent Psychiatry)
751 COUNTY ROAD K
FOND DU LAC, WI 54937
Psychologist (Clinical)
751 COUNTY ROAD K
FOND DU LAC, WI 54937

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Alexandra Christiansen's NPI number?

The NPI number for Alexandra Christiansen is 1881583680. It was assigned to this individual provider in the NPPES registry on June 28, 2025.

Where is Alexandra Christiansen located?

Alexandra Christiansen practices at 751 County Road K, Fond Du Lac, WI 54937. The listed phone number is (920) 929-3800.

What is Alexandra Christiansen's specialty?

The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.

Is Alexandra Christiansen enrolled in Medicare?

Yes. Alexandra Christiansen is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Alexandra Christiansen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alexandra Christiansen reassigns Medicare benefits to Cook County (Arlington Heights, IL). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Alexandra Christiansen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Alexandra Christiansen was last updated on February 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.