Organization Profile
Doctors On Site, Ltd
Unclaimed ProfileAbout Doctors On Site, Ltd
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Practice Size
Counted from individual NPI records registered at the same street address; a shared building can inflate this.
Providers in This Building & Nearby
From registry street addresses: providers filed at this building, which can include unrelated practices sharing it.
- Janusz Langiewicz, M.D.PH.D. Allergy
- Sakib S. Khan, MD Anesthesiology — Critical Care
- Janina Langiewicz, MD Pediatrics
- Nelly S. Cavero Nurse Practitioner — Family
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Contact Information
- (847) 882-2030
- Email not available
Practice Locations
1 EXECUTIVE CT SUITE 1
South Barrington, IL 60010
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at Doctors On Site, Ltd 1
Providers listing the same practice in the NPI registry.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Common questions
What is Doctors On Site, Ltd's specialty?
Doctors On Site, Ltd is a nurse practitioner in South Barrington, IL. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Doctors On Site, Ltd?
Doctors On Site, Ltd is listed at 1 Executive CT Suite 1, South Barrington, IL 60010. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Doctors On Site, Ltd?
The number on file is (847) 882-2030. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Doctors On Site, Ltd's NPI number?
Doctors On Site, Ltd's National Provider Identifier is 1487190732. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Has Doctors On Site, Ltd confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Doctors On Site, Ltd. If this is you, claiming it is free.
Guide.md
Is this your practice?
Manage this listing? Log in or create an account, then click “This is my practice and I manage it” here. A verified physician whose registry address matches this location is approved instantly; everyone else is reviewed by a person.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.