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DR. NINA APPADURAI
NPI 1104292820
Clinical Neuropsychologist in St Charles, IL

Active since August 17, 2015PECOS EnrolledAccepts Medicare Assignment
2580 FOXFIELD RD STE 101-4, ST CHARLES, IL 60174(630) 524-9230 Get Directions Write a Review

NPPES record last updated: January 26, 2016. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Nina Appadurai NPPES

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

DR. NINA APPADURAI (NPI 1104292820) is an individual clinical neuropsychologist in St Charles, Illinois, licensed in Illinois (071009098) and active in the NPI registry since August 2015. She is enrolled in Medicare PECOS and is a graduate of Other (2012).

NPPES Registry Identity

NPI1104292820
Entity TypeIndividualFemale
Primary Taxonomy103G00000X
Provider Legal NameDR. NINA APPADURAI
Location Address2580 FOXFIELD RD STE 101-4St Charles, IL 60174-1403
Mailing AddressPo Box 2257Chesterton, IN 46304-0357 · (219) 926-8320 · Fax (219) 926-3524
Phone(630) 524-9230
Sole ProprietorYes
Medical School CMSOtherGraduated 2012
Enumeration DateAugust 17, 2015
Last NPPES UpdateJanuary 26, 2016
✔ NPI 1104292820 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 IL · 071009098
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 071.009098 (IL)
2580 FOXFIELD RD STE 101-4, St Charles, IL 60174
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Other Names 1

Former Name (1)Nina Krishnamurthy Psy.d.

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health.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

Dr. Nina Appadurai 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 ID4789992942
PECOS Enrollment IDI20151007003420
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 Nina Appadurai reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Richard Kneip, Ph.D., P.C.
257 mi
Community/Behavioral Health
6548 TOWN CENTER DR STE D
Clarkston, MI 48346
  • Reassigned Medicare billing, Illinois enrollment
  • Medicare enrollment name: Richard Kneip Phd PC
  • 45 clinicians in this Medicare group
NPI 1679739700 (800) 693-1916

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

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 Nina Appadurai's NPI number?

The NPI number for Nina Appadurai is 1104292820. It was assigned to this individual provider in the NPPES registry on August 17, 2015. The provider is also known as Nina Krishnamurthy Psy.D..

Where is Nina Appadurai located?

Nina Appadurai practices at 2580 Foxfield Rd Ste 101-4, St Charles, IL 60174. The listed phone number is (630) 524-9230.

What is Nina Appadurai's specialty?

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

Is Nina Appadurai enrolled in Medicare?

Yes. Nina Appadurai 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 organization bills Medicare for Nina Appadurai's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nina Appadurai reassigns Medicare benefits to Richard Kneip, Ph.D., P.C. (Clarkston, MI). 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 Nina Appadurai's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Nina Appadurai accept?

Health plans from Oscar Health list Nina Appadurai 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 Nina Appadurai was last updated on January 26, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years 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.