NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Christopher Walker MD, Inc

Critical Care Medicine (Internal Medicine) Physician in Manhattan Beach, CA · enumerated 2016 · authorized official Christopher Walker, President.

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

National Provider Identifier

1740634732

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Christopher Walker MD, Inc
Practice address 309 24th St, Manhattan Beach, CA, 90266
Phone (216) 513-5788
Enumeration date Apr 16, 2016
Last updated in NPPES Apr 16, 2016

Taxonomy & classification

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License A106362 (CA) Secondary
207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License A106362 (CA) Primary

Authorized official

Name Christopher Walker
Title President
Phone (216) 513-5788

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 Christopher Walker MD, Inc?
The NPI for Christopher Walker MD, Inc is 1740634732, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Christopher Walker MD, Inc?
NPPES lists Christopher Walker (President) as the authorized official for this organization.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-04-16.