NPI Portal NPI Lookup & Verification

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

Dr. Mearle David Lewis

Psychiatric Residential Treatment Facility in Los Angeles, CA · enumerated 2007.

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

National Provider Identifier

1457543894

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Registry record

Entity type Individual (Type 1)
Name Dr. Mearle David Lewis
Sex Male
Practice address Los Angeles, CA, 90049
Phone (310) 589-1600
Fax (310) 589-1607
Enumeration date Aug 9, 2007
Last updated in NPPES May 24, 2016

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

Taxonomy & licenses

323P00000X Psychiatric Residential Treatment Facility Residential Treatment Facilities · License C39057 (CA) Primary
324500000X Substance Abuse Rehabilitation Facility Residential Treatment Facilities · License C39057 (CA) Secondary

Other identifiers

Identifier Type State Issuer
OOC39057 Other CA MEDICAL
GR 005999 Other CA MEDICAL UPIN

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.

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Frequently asked questions

What is the NPI number for Mearle Lewis?
The National Provider Identifier (NPI) for Mearle Lewis is 1457543894, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mearle Lewis practice?
The practice location on file with NPPES is in Los Angeles, 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 2016-05-24.