Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. William David Mikko, RN

Registered Nurse in Palm Springs, CA · enumerated 2015.

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

National Provider Identifier

1255714457

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Mr. William David Mikko

Credential RN

Sex Male

Practice address 275 N El Cielo Rd, Palm Springs, CA, 92262

Phone (760) 969-5262

Fax (760) 969-5946

Enumeration date Jul 7, 2015

Last updated in NPPES Jul 7, 2015

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 691412 (CA) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN credential

Other identifiers

Identifier	Type	State	Issuer
691412	Other	CA	STATE RN LICENSE

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 1255714457 active?

Yes, as of the latest NPPES snapshot, NPI 1255714457 is active (record last updated 2015-07-07).

How do I verify William Mikko's NPI record?

Cross-check NPI 1255714457 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-07-07.