Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Lior Mayer, CNM

Advanced Practice Midwife in Berkeley, CA · enumerated 2007.

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

National Provider Identifier

1225217862

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Registry record

Entity type Individual (Type 1)

Name Mrs. Lior Mayer

Credential CNM

Sex Female

Practice address 2450 Ashby Ave, Berkeley, CA, 94705

Phone (510) 204-3977

Fax (510) 204-5129

Enumeration date Oct 31, 2007

Last updated in NPPES May 12, 2020

Taxonomy & licenses

367A00000X Advanced Practice Midwife Physician Assistants & Advanced Practice Nursing Providers · License 1739 (CA) Primary

CNM · Certified Nurse Midwife: An advanced practice nurse specializing in pregnancy, childbirth, and reproductive care. About the CNM 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

How do I verify Lior Mayer's NPI record?

Cross-check NPI 1225217862 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1225217862 active?

Yes, as of the latest NPPES snapshot, NPI 1225217862 is active (record last updated 2020-05-12).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-05-12.