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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Ryan C. Nau, CRNA

Certified Registered Nurse Anesthetist in Winchester, VA · enumerated 2009.

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

National Provider Identifier

1518108232

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Registry record

Entity type Individual (Type 1)
Name Mr. Ryan C. Nau
Credential CRNA
Sex Male
Practice address 1840 Amherst St, Winchester, VA, 22601
Enumeration date Mar 9, 2009
Last updated in NPPES Mar 30, 2020

Taxonomy & licenses

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License C-APN0000274-C-CRNA (CO) Primary
367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License 0024168174 (VA) Secondary
CRNA · Certified Registered Nurse Anesthetist: An advanced practice nurse specializing in anesthesia care. About the CRNA credential

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.

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Frequently asked questions

How do I verify Ryan Nau's NPI record?
Cross-check NPI 1518108232 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1518108232 active?
Yes, as of the latest NPPES snapshot, NPI 1518108232 is active (record last updated 2020-03-30).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-03-30.