DR. KAREN ANNE HOLLER PHD
NPI 1750474599
Psychologist in Providence, RI

Active since October 02, 2006PECOS Enrolled
345 BLACKSTONE BLVD, PROVIDENCE, RI 02906(401) 455-6352(401) 455-6309 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Karen Anne Holler Phd NPPES

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

DR. KAREN ANNE HOLLER PHD (NPI 1750474599) is an individual psychologist in Providence, Rhode Island, licensed in Rhode Island (PS00626) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1750474599
Entity TypeIndividualFemale
Primary Taxonomy103T00000X
Provider Legal NameDR. KAREN ANNE HOLLERCredential: PHD
Location Address345 BLACKSTONE BLVDProvidence, RI 02906-4800
Mailing Address345 Blackstone BlvdProvidence, RI 02906-4800 · (401) 455-6352 · Fax (401) 455-6293
Fax(401) 455-6309
Sole ProprietorNo
Enumeration DateOctober 2, 2006
Last NPPES UpdateSeptember 11, 2025
✔ NPI 1750474599 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 RI · PS00626
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 ListedClinical NeuropsychologistTaxonomy 103G00000X · License PS00626 (RI)

Other Identifiers 3

Other407715RI · Blue Chip
Other22698-5RI · Blue Cross
Other61-92026RI · Ubh

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Karen Anne Holler Phd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Holler reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Anesthesiology
101 DUDLEY STREET, WIH DEPT OF ANESTHESIOLOGY
Providence, RI 02905
  • Reassigned Medicare billing, Rhode Island enrollment
  • 984 clinicians in this Medicare group
Psychiatry
593 EDDY STREET
Providence, RI 02903
  • Reassigned Medicare billing, Rhode Island enrollment
  • 315 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 20

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

Clinic/Center
345 BLACKSTONE BLVD
PROVIDENCE, RI 02906
Psychiatry & Neurology (Psychiatry)
345 BLACKSTONE BLVD
PROVIDENCE, RI 02906
Social Worker (Clinical)
345 BLACKSTONE BLVD
PROVIDENCE, RI 02906
Nurse Practitioner (Family)
345 BLACKSTONE BLVD, MEMORY AND AGING PROGRAM
PROVIDENCE, RI 02906
Psychiatry & Neurology (Psychiatry)
345 BLACKSTONE BLVD
PROVIDENCE, RI 02906
Psychiatry & Neurology (Psychiatry)
345 BLACKSTONE BLVD
PROVIDENCE, RI 02906
Psychiatry & Neurology (Psychiatry)
345 BLACKSTONE BLVD
PROVIDENCE, RI 02906
Psychiatry & Neurology (Psychiatry)
345 BLACKSTONE BLVD
PROVIDENCE, RI 02906

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 Holler's NPI number?

The NPI number for Karen Holler is 1750474599. It was assigned to this individual provider in the NPPES registry on October 2, 2006.

Where is Karen Holler located?

Karen Holler practices at 345 Blackstone Blvd, Providence, RI 02906. The listed phone number is (401) 455-6352.

What is Karen Holler's specialty?

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

Is Karen Holler enrolled in Medicare?

Yes. Karen Holler is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Karen Holler's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Karen Holler reassigns Medicare benefits to 2 organizations: Affinity Physicians LLC (Providence, RI) and Lifespan Physician Group, Inc. (Providence, RI). 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 Holler'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 Karen Holler was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.