Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ryann Elizbeth Mayer, MPS, RDN, LDN, CSP

Pediatric Nutrition Registered Dietitian in Cheyenne, WY · enumerated 2020.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1831797661

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Ryann Elizbeth Mayer

Credential MPS, RDN, LDN, CSP

Sex Female

Practice address 1603 Capitol Ave Ste 411f, Cheyenne, WY, 82001

Phone (484) 888-8545

Enumeration date Oct 14, 2020

Last updated in NPPES May 19, 2025

Taxonomy & licenses

133VN1004X Pediatric Nutrition Registered Dietitian Dietary & Nutritional Service Providers · License DX3673 (MD) Primary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1831797661 active?

Yes, as of the latest NPPES snapshot, NPI 1831797661 is active (record last updated 2025-05-19).

How do I verify Ryann Mayer's NPI record?

Cross-check NPI 1831797661 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-05-19.