AMETHYST NEUROPSYCHOLOGY PLLC
NPI 1093542904
Clinical Neuropsychologist in Swansea, IL
About Amethyst Neuropsychology Pllc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
AMETHYST NEUROPSYCHOLOGY PLLC (NPI 1093542904) is a healthcare organization registered as a clinical neuropsychologist in Swansea, Illinois and active in the NPI registry since September 2024. The organization lists Sarah M Dyer, Clinical Neuropsychologist, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Amethyst Neuropsychology Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to Amethyst Neuropsychology PLLC, which bills Medicare for the services this clinician delivers.
Clinician (1)
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 Amethyst Neuropsychology PLLC's NPI number?
The NPI number for Amethyst Neuropsychology PLLC is 1093542904. It was assigned to this organization in the NPPES registry on September 16, 2024.
Where is Amethyst Neuropsychology PLLC located?
Amethyst Neuropsychology PLLC is located at 4505 N Illinois St Ste 7, Swansea, IL 62226. The listed phone number is (618) 680-0317.
What is Amethyst Neuropsychology PLLC's specialty?
The primary specialty registered for this NPI is Clinical Neuropsychologist with taxonomy code 103G00000X.
Is Amethyst Neuropsychology PLLC enrolled in Medicare?
Yes. Amethyst Neuropsychology PLLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Amethyst Neuropsychology PLLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Clinical Psychologist) reassigns their Medicare billing to Amethyst Neuropsychology PLLC. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Amethyst Neuropsychology PLLC was last updated on September 16, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Amethyst Neuropsychology Pllc · NPI 1093542904
Clinical Neuropsychologist organization in Swansea, Illinois. Organization record, active in the CMS NPPES registry since September 16, 2024.
## Identity
- **NPI:** 1093542904 (Entity type: Organization)
- **Enumerated:** September 16, 2024
- **Primary specialty:** Clinical Neuropsychologist · taxonomy 103G00000X
- **Organization subpart:** No
- **Authorized official:** Sarah Dyer, CLINICAL NEUROPSYCHOLOGIST
## Practice location
- **Address:** 4505 N ILLINOIS ST STE 7, Swansea, IL 62226-1500
- **Phone:** (618) 680-0317
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Clinical Psychologist) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 16, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1093542904) · Data from the CMS NPPES public registry.