CHERYL LYNN ARMSTRONG RN, CDE
NPI 1366723900
Registered Nurse - Diabetes Educator in San Diego, CA
About Cheryl Lynn Armstrong Rn, Cde NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHERYL LYNN ARMSTRONG RN, CDE (NPI 1366723900) is an individual diabetes educator provider in San Diego, California, licensed in California (578186) and active in the NPI registry since September 2011.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Cheryl Lynn Armstrong Rn, Cde is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Cheryl Armstrong reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
San Diego, CA 92111
- Reassigned Medicare billing, California enrollment
- 1,233 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 10
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Cheryl Armstrong's NPI number?
The NPI number for Cheryl Armstrong is 1366723900. It was assigned to this individual provider in the NPPES registry on September 8, 2011.
Where is Cheryl Armstrong located?
Cheryl Armstrong practices at 8901 Activity Rd, San Diego, CA 92126. The listed phone number is (858) 499-2700.
What is Cheryl Armstrong's specialty?
The primary specialty registered for this NPI is Registered Nurse, specializing in Diabetes Educator, with taxonomy code 163WD0400X.
Is Cheryl Armstrong enrolled in Medicare?
Yes. Cheryl Armstrong is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Cheryl Armstrong's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Cheryl Armstrong reassigns Medicare benefits to Sharp Rees-Stealy Medical Group, Inc (San Diego, CA). 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 Cheryl Armstrong'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 Cheryl Armstrong was last updated on September 8, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Cheryl Lynn Armstrong, RN, CDE · NPI 1366723900
Diabetes Educator provider in San Diego, California. Individual provider, active in the CMS NPPES registry since September 8, 2011.
## Identity
- **NPI:** 1366723900 (Entity type: Individual)
- **Enumerated:** September 8, 2011
- **Primary specialty:** Registered Nurse - Diabetes Educator · taxonomy 163WD0400X
- **State license:** 578186 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 8901 ACTIVITY RD, San Diego, CA 92126-4427
- **Phone:** (858) 499-2700
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Bills Medicare through:** Sharp Rees-Stealy Medical Group, Inc (NPI 1285616177, San Diego, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 8, 2011
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Source: [NPI Profile](https://npiprofile.com/npi/1366723900) · Data from the CMS NPPES public registry.