Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Onsite Diagnostic Labs Inc

Organization Clinical Medical Laboratory · NPI 1346813797

Onsite Diagnostic Labs Inc is a Clinical Medical Laboratory in Evanston, Illinois. Registered with an NPI since 2021.

In the registry since
2021
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.

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Practice location Address checks out

2521 Gross Point Rd Ste 1B
Evanston, IL 60201-4993
Phone: (847) 530-4994
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Medical Laboratory (primary) Taxonomy 291U00000X

Record details

NPI number1346813797
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Stephan Erdelyi — President · (847) 530-4994
Other names Onsite Lab Corp
NPI enumeratedJuly 22, 2021
Last updated in NPPESMarch 2, 2026
Certification dateMarch 2, 2026
Mailing address2521 Gross Point Rd Ste 1b, Evanston, IL 60201-4993

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