NPPES file of Aug 9, 2026

Cheryl Lynn Armstrong, RN, CDE

Diabetes Educator Registered Nurse · San Diego, CA

Cheryl Lynn Armstrong, RN, CDE is a diabetes educator registered nurse with a practice address in San Diego, California, and NPI 1366723900, issued on Sep 8, 2011. Check the license (California 578186, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1366723900
Name
Cheryl Lynn Armstrong
Credential
RN, CDE
Primary taxonomy
Diabetes Educator Registered Nurse 163WD0400X
License number
578186 CA
Self-reported in NPPES; status is on the state search
Practice location
8901 Activity RD, San Diego, CA 92126
Phone
(858) 499-2700
Enumerated
Sep 8, 2011
Record last updated
Sep 8, 2011 (not updated in 15 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest diabetes educator registered nurse records → All 185 in California → Look up another NPI →

Also registered at 8901 Activity RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. David Chao, MDSports Medicine (Orthopaedic Surgery) Physician1730290289
  2. Steven Chen, M.D.Surgical Oncology Physician1366410086
  3. John Colson, DPMPodiatrist1477653301
  4. Francesca Gresik, DPTPhysical Therapist1407193519
  5. Elizabeth Mayer, P.A.Physician Assistant1134139553
  6. Sharon Nelson, R.D.Registered Dietitian1699800540

Verify Cheryl Lynn Armstrong in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 578186    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

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Cheryl Lynn Armstrong among 185 diabetes educator registered nurse records in California

Cheryl Lynn Armstrong, RN, CDE is one of 185 diabetes educator registered nurse records with a practice address in California. 5% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2011, is newer than 38% of them.

  • NPI issued2011 · 38% of these records are older, 59% newer
  • In a Medicare fileNo · 5% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2011 · 72% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 163WD0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Diabetes Educator Registered Nurse providers in California

There are 185 diabetes educator registered nurse records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 185 in California → Every provider in San Diego → Diabetes Educator Registered Nurse nationwide →

The 8 diabetes educator registered nurse records with the nearest ZIP codes

  1. Maria Robles, R.N.San Diego, CA 921261083054092
  2. Rebecca Acuna, RN, CNSLa Jolla, CA 921231225803570
  3. Patricia Fitzgerald, R.N.San Diego, CA 921231619317633
  4. Elizabeth Edmonston, RNSan Diego, CA 921211932873429
  5. Trisha CymborSan Diego, CA 921071598416679
  6. Judith Labenske, RNSan Diego, CA 921061154028017
  7. Christina Banaszak, RNSan Diego, CA 921031659944627
  8. Catherine Moller, RN-CDESan Diego, CA 921031487742854

Common questions

What is Cheryl Lynn Armstrong, RN, CDE's NPI number?

Cheryl Lynn Armstrong, RN, CDE's National Provider Identifier (NPI) is 1366723900, issued on Sep 8, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Cheryl Lynn Armstrong, RN, CDE located?

The NPPES record lists a practice address at 8901 Activity RD, San Diego, CA, 92126. Phone: (858) 499-2700. Providers update this record themselves, so call before visiting.

How can I verify Cheryl Lynn Armstrong, RN, CDE's license?

NPPES lists California license number 578186, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.