Westside Medical Evaluators

Westside Medical Evaluators is a healthcare organization registered as Internal Medicine Physician in El Segundo, CA, holding Type 2 (organization) NPI 1548666308 since 2014. The authorized official on file is Frederick Butler, President.

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NPI	1548666308
Entity type	Organization (Type 2)
Legal business name	Westside Medical Evaluators
Practice address	400 CONTINENTAL BLVD, STE 600, El Segundo, CA, 90245
Phone	3109196811
Fax	3103563203
Enumeration date	2014-11-06
Last updated in NPPES	2014-11-06

Authorized official

Name	Frederick Butler
Title	President
Phone	3109196811

Taxonomy & classification

Taxonomy code	Specialty	Primary	License	State
207R00000X	Internal Medicine Physician	Primary	A73853	CA

Copy-ready billing details

Provider: Westside Medical Evaluators
NPI: 1548666308
Taxonomy: 207R00000X (Internal Medicine Physician)
Address: 400 CONTINENTAL BLVD, STE 600, El Segundo, CA, 90245

Providers at this address

NPI	Name	Type	Specialty	Location
1316335334	Hydra Health Centers	Organization	Internal Medicine Physician	El Segundo, CA
1447983119	Nicole Brittsan	Individual	Marriage & Family Therapist	El Segundo, CA
1912682840	Chelsea Vielhauer	Individual	Clinical Social Worker	El Segundo, CA

Verify this record

Cross-check NPI 1548666308 against the authoritative CMS record: view Westside Medical Evaluators on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

Where is Westside Medical Evaluators located?

The practice location on file with NPPES is in El Segundo, CA.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2014-11-06. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2014-11-06.