Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Berna Lee Mayer, RN, MSN, CFNP

Q: What is the NPI number for Berna Mayer?

The National Provider Identifier (NPI) for Berna Mayer is 1598876690, a Type 1 (individual) record in the CMS NPPES registry.

Family Nurse Practitioner in Lancaster, CA · enumerated 2006.

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

National Provider Identifier

1598876690

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Registry record

Entity type Individual (Type 1)

Name Ms. Berna Lee Mayer

Credential RN, MSN, CFNP

Sex Female

Practice address 43839 15th St W, Lancaster, CA, 93534

Phone (661) 945-5984

Fax (661) 726-3890

Enumeration date Aug 31, 2006

Last updated in NPPES Sep 10, 2008

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License RN 375729 (CA) Secondary

363LA2100X Acute Care Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License NP 4699 (CA) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License NP 4699 (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 is the NPI number for Berna Mayer?

The National Provider Identifier (NPI) for Berna Mayer is 1598876690, a Type 1 (individual) record in the CMS NPPES registry.

Where does Berna Mayer practice?

The practice location on file with NPPES is in Lancaster, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-09-10.