What is Sylvia Siwinski's NPI number?

Sylvia Siwinski's National Provider Identifier (NPI) is 1265603286, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Sylvia Siwinski's specialty?

Sylvia Siwinski is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).

Where is Sylvia Siwinski located?

Sylvia Siwinski's practice location on file with NPPES is 852 Noel Dr, Mundelein, IL 60060-3079.

What is Sylvia Siwinski's phone number?

The practice phone number listed in the NPPES registry for Sylvia Siwinski is (650) 218-0355.

Is Sylvia Siwinski's NPI active?

Yes — Sylvia Siwinski's NPI (1265603286) is active in the NPPES registry as of the last update on 2008-03-18.

IndividualActive

Sylvia Siwinski

NPI 1265603286 · Specialist · Mundelein, IL

Sylvia Siwinski is a Specialist provider in Mundelein, IL (NPI 1265603286).

Provider details

NPI number: 1265603286
Entity type: Individual
Primary specialty: SpecialistOther Service Providers
Sex: Female
Sole proprietor: Yes

Specialties & taxonomies

SpecialistPrimary174400000X
Other Service Providers

Profile Score

Detailed profile(81/100 index)

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

Registry tenure38% of score
18 yrs in NPPES 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

852 Noel Dr

Mundelein, IL 60060-3079

Phone: (650) 218-0355

Street-level locationGet directions

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Mailing address