What is Milly Sim's NPI number?

Milly Sim's National Provider Identifier (NPI) is 1720949985, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Milly Sim's specialty?

Milly Sim is listed in the NPPES registry with a primary specialty of Behavior Technician (Behavioral Health & Social Service Providers).

Where is Milly Sim located?

Milly Sim's practice location on file with NPPES is 100 N Pacific Coast Hwy Ste 1400, El Segundo, CA 90245-5602.

What is Milly Sim's phone number?

The practice phone number listed in the NPPES registry for Milly Sim is (310) 856-0800.

Is Milly Sim's NPI active?

Yes — Milly Sim's NPI (1720949985) is active in the NPPES registry as of the last update on 2025-11-18.

IndividualActive

Milly Sim

NPI 1720949985 · Behavior Technician · El Segundo, CA

Milly Sim is a Behavior Technician provider in El Segundo, CA (NPI 1720949985).

Provider details

NPI number: 1720949985
Entity type: Individual
Primary specialty: Behavior TechnicianBehavioral Health & Social Service Providers
Sex: Female
Sole proprietor: No

Specialties & taxonomies

Behavior TechnicianPrimary106S00000X
Behavioral Health & Social Service Providers

Profile Score

Basic profile(47/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
Under 1 yr in registry
Profile completeness38% of score
83% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

100 N Pacific Coast Hwy Ste 1400

El Segundo, CA 90245-5602

Phone: (310) 856-0800

Approximate (ZIP-level) locationGet directions

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Mailing address