21ST CENTURY NEUROLOGY
NPI 1467492066
Psychiatry & Neurology - Neurology in Phoenix, AZ
About 21st Century Neurology NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
21ST CENTURY NEUROLOGY (NPI 1467492066) is a healthcare organization registered as a neurology in Phoenix, Arizona and active in the NPI registry since June 2006. The organization holds a CLIA Waiver certificate valid through April 7, 2027 and lists Stephen S Flitman, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 1
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)
21st Century Neurology is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
2Medicare enrollment records show 2 clinicians reassign Medicare billing to 21st Century Neurology, which bills Medicare for the services they deliver. Of these, 2 practice at this address. They are listed nearest first.
Clinicians, nearest first (2)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
CLIA Laboratory Certificates CMS CLIA
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate of Waiver 03D1011379
21st Century Neurology, Xenoscience · Phoenix, AZFrequently 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 Xenoscience, Inc.'s NPI number?
The NPI number for Xenoscience, Inc. is 1467492066. It was assigned to this organization in the NPPES registry on June 8, 2006. The provider is doing business as 21st Century Neurology.
Where is Xenoscience, Inc. located?
Xenoscience, Inc. is located at 2601 N 3rd St Suite 125, Phoenix, AZ 85004. The listed phone number is (602) 265-6500.
What is Xenoscience, Inc.'s specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.
Is Xenoscience, Inc. enrolled in Medicare?
Yes. Xenoscience, Inc. is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Xenoscience, Inc.?
According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Neurology, reassign their Medicare billing to Xenoscience, Inc.. 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. Of these, 2 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Xenoscience, Inc. hold a CLIA laboratory certificate?
Yes. A Certificate of Waiver (number 03D1011379) is associated with this NPI, valid through April 7, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
When was this NPI record last updated?
The NPPES record for Xenoscience, Inc. was last updated on April 1, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# 21st Century Neurology · NPI 1467492066
Neurology organization in Phoenix, Arizona. Organization record, active in the CMS NPPES registry since June 8, 2006.
## Identity
- **NPI:** 1467492066 (Entity type: Organization)
- **Enumerated:** June 8, 2006
- **Primary specialty:** Psychiatry & Neurology - Neurology · taxonomy 2084N0400X
- **Legal business name:** Xenoscience, Inc.
- **Organization subpart:** No
- **Authorized official:** Stephen Flitman, PRESIDENT
## Practice location
- **Address:** 2601 N 3RD ST, SUITE 125, Phoenix, AZ 85004-1104
- **Phone:** (602) 265-6500
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 2 clinicians (Neurology) reassign Medicare billing to this organization (form CMS-855R); 2 practice at this address · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 1, 2010
- **Other identifiers:** Medicare PIN Z111491 (AZ)
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1467492066) · Data from the CMS NPPES public registry.