ISABELLE KATHRYN AVILDSEN PHD
NPI 1497598080
Clinical Neuropsychologist in New York, NY

Q: What is Isabelle Avildsen's NPI number?

The NPI number for Isabelle Avildsen is 1497598080. It was assigned to this individual provider in the NPPES registry on June 13, 2024.

Q: What is Isabelle Avildsen's specialty?

The primary specialty registered for this NPI is Clinical Neuropsychologist with taxonomy code 103G00000X.

Q: When was this NPI record last updated?

The NPPES record for Isabelle Avildsen was last updated on October 31, 2025. 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.

Active since June 13, 2024PECOS EnrolledAccepts Medicare Assignment

223 E 34TH ST, NEW YORK, NY 10016(646) 558-0800(929) 455-9393 Get Directions Write a Review

NPPES record last updated: October 31, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Isabelle Kathryn Avildsen Phd NPPES

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

ISABELLE KATHRYN AVILDSEN PHD (NPI 1497598080) is an individual clinical neuropsychologist in New York, New York, licensed in New York (025804) and active in the NPI registry since June 2024. She is enrolled in Medicare PECOS, is affiliated with Nyu Langone Hospitals, and is a graduate of Other (2022).

NPPES Registry Identity

NPI1497598080

Entity TypeIndividualFemale

Primary Taxonomy103G00000X

Provider Legal NameISABELLE KATHRYN AVILDSENCredential: PHD

Location Address223 E 34TH STNew York, NY 10016-4852

Mailing Address223 E 34th StNew York, NY 10016-4852 · (646) 558-0800 · Fax (929) 455-9393

Phone(646) 558-0800

Fax(929) 455-9393

Sole ProprietorNo

Medical School CMSOtherGraduated 2022

Enumeration DateJune 13, 2024

Last NPPES UpdateOctober 31, 2025

NPPES CertifiedOctober 31, 2025

✔ NPI 1497598080 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyClinical NeuropsychologistBehavioral Health & Social Service Providers

Taxonomy Code103G00000X

License✔ Licensed in NY · 025804

Definition

A clinical psychologist who applies principles of assessment and intervention based upon the scientific study of human behavior as it relates to normal and abnormal functioning of the central nervous system. The specialty is dedicated to enhancing the understanding of brain-behavior relationships and the application of such knowledge to human problems.

Also ListedPsychologist · ClinicalTaxonomy 103TC0700X · License 025804 (NY)

223 E 34TH ST, New York, NY 10016

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Isabelle Kathryn Avildsen 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 ID345771952

PECOS Enrollment IDI20241008000059

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.

Areas of Expertise CMS Part B claims 5

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.

Administration of psychological or neuropsychological test, each additional 30 minutes 96137

This procedure involves administering psychological or neuropsychological tests to evaluate your mental functions. Each additional 30 minutes allows for a more in-depth assessment of your cognitive abilities, emotions, and behavior. It's crucial for accurate diagnosis and treatment planning.

107 services30 patients

Evaluation of neuropsychological test, each additional hour 96133

This service involves further evaluation of your neuropsychological test results beyond the initial hour. It helps to understand your cognitive functioning better, focusing on areas like memory, attention, and problem-solving skills.

68 services44 patients

Exam of neurobehavioral status, first hour 96116

An exam of neurobehavioral status is a medical procedure that evaluates your brain's functions. This includes assessing your cognitive abilities, emotional responses, and behavioral patterns. The first hour of the exam is typically dedicated to this initial evaluation.

46 services46 patients

Evaluation of neuropsychological test, first hour 96132

An evaluation of neuropsychological tests is a process to assess your brain's function. It involves tasks designed to measure cognitive abilities such as memory, attention, problem-solving, and language skills. The first hour involves initial testing and observation.

46 services46 patients

Administration of psychological or neuropsychological test, first 30 minutes 96136

This procedure involves a health professional conducting a psychological or neuropsychological test. The first 30 minutes typically involve understanding your mental health or brain function through various assessments. This helps in diagnosing and treating mental health disorders effectively.

32 services32 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Nyu Langone Hospitals

Acute Care Hospitals · New York, NY

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330214

Location550 First AvenueNew York, NY 10016 · New York County

Emergency services Birthing friendly

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.

JOSIANE LAJOIE M.D.

Psychiatry & Neurology (Neurology)