Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Danielle Alexandra Lenahan, MD

Psychiatry Physician in Santa Monica, CA · enumerated 2020.

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

National Provider Identifier

1417583345

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Registry record

Entity type Individual (Type 1)

Name Danielle Alexandra Lenahan

Credential MD

Sex Female

Practice address 1112 Montana Ave Ste C406, Santa Monica, CA, 90403

Phone (323) 686-1551

Enumeration date Mar 23, 2020

Last updated in NPPES Feb 11, 2026

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License A182032 (CA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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

Where does Danielle Lenahan practice?

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

What is the NPI number for Danielle Lenahan?

The National Provider Identifier (NPI) for Danielle Lenahan is 1417583345, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-11.