KAREN ANN VANDERHOFF PHD
NPI 1245434208
Psychologist in Newton, IA

Active since June 13, 2007PECOS EnrolledAccepts Medicare Assignment
2301 1ST AVE E, NEWTON, IA 50208(641) 381-5706 Get Directions Write a Review

NPPES record last updated: January 7, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Karen Ann Vanderhoff Phd NPPES

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

KAREN ANN VANDERHOFF PHD (NPI 1245434208) is an individual psychologist in Newton, Iowa, licensed in Iowa (001110) and active in the NPI registry since June 2007. She is enrolled in Medicare PECOS and is a graduate of Other (2008).

NPPES Registry Identity

NPI1245434208
Entity TypeIndividualFemale
Primary Taxonomy103T00000X
Provider Legal NameKAREN ANN VANDERHOFFCredential: PHD
Location Address2301 1ST AVE ENewton, IA 50208-4202
Mailing Address2301 1st Ave ENewton, IA 50208-4202 · (641) 381-5706
Sole ProprietorNo
Medical School CMSOtherGraduated 2008
Enumeration DateJune 13, 2007
Last NPPES UpdateJanuary 7, 2026
NPPES CertifiedJanuary 7, 2026
✔ NPI 1245434208 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
License✔ Licensed in IA · 001110
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.
2301 1ST AVE E, Newton, IA 50208

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Karen Ann Vanderhoff Phd is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6103978192
PECOS Enrollment IDI20090722000662
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 Reassignments

2

Medicare enrollment records show Karen Vanderhoff reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Psychologist
2301 1ST AVE E
Newton, IA 50208
  • Reassigned Medicare billing, Iowa enrollment
Psychiatry
2611 WASHINGTON STREET
Pella, IA 50219
  • Reassigned Medicare billing, Iowa enrollment
  • 7 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.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Psychotherapy, 1 hour 90837
Psychotherapy is a therapeutic interaction or treatment between a trained professional and a patient. In a 1-hour session, you'll talk about your feelings, thoughts, and behaviors to help identify and manage mental health issues. This process aids in personal growth, healing, and improved well-being.
63 services17 patients

Other Providers at the Same Location NPPES

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

Psychologist
2301 1ST AVE E
NEWTON, IA 50208

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 Karen Vanderhoff's NPI number?

The NPI number for Karen Vanderhoff is 1245434208. It was assigned to this individual provider in the NPPES registry on June 13, 2007.

Where is Karen Vanderhoff located?

Karen Vanderhoff practices at 2301 1st Ave E, Newton, IA 50208. The listed phone number is (641) 381-5706.

What is Karen Vanderhoff's specialty?

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

Is Karen Vanderhoff enrolled in Medicare?

Yes. Karen Vanderhoff is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Karen Vanderhoff's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Karen Vanderhoff reassigns Medicare benefits to 2 organizations: Mnd Gmz LLC (Newton, IA) and Pine Rest Christian Mental Health Services (Pella, IA). Each 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 Karen Vanderhoff's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Karen Vanderhoff accept?

Health plans from HealthPartners and Wellmark Health Plan of Iowa, Inc. list Karen Vanderhoff as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Karen Vanderhoff was last updated on January 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.