Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Tiffany Markham, RN

Critical Care Medicine Registered Nurse in Beaumont, CA · enumerated 2020.

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

National Provider Identifier

1578103842

Verified

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Registry record

Entity type Individual (Type 1)

Name Tiffany Markham

Credential RN

Sex Female

Practice address Beaumont, CA, 92223

Phone (951) 385-9997

Enumeration date Jan 14, 2020

Last updated in NPPES Jan 14, 2020

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

163WC0200X Critical Care Medicine Registered Nurse Nursing Service Providers · License 683974 (CA) Primary

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

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Tiffany Markham?

Tiffany Markham is registered in NPPES with the primary taxonomy of Critical Care Medicine Registered Nurse. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-01-14.