Oak Brook Allergists Sc
About this NPIWhat this record shows.
NPI 1700819117 is registered to Oak Brook Allergists Sc, a healthcare organisation classified as "Allergy & Immunology Physician" and located at 360 W Butterfield Rd Ste 140 in Elmhurst, Illinois. The organisation's authorised official is David Knysak. The organisation has been enumerated in the NPI registry since 2006.
Your brand here.
Medicare enrollment
This provider holds a Medicare enrollment on file with the Provider Enrollment, Chain and Ownership System (PECOS). Each enrollment carries a public Medicare Enrollment ID (ENRLMT_ID) used by billers and intermediaries.
Part B Supplier
- O20060912000543Clinic/Group PracticeIL
Source: CMS PECOS public enrollment file.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Oak Brook Allergists Sc accepts. To confirm in-network status with your specific health plan, contact Oak Brook Allergists Sc directly at (630) 574-0460.
Frequently asked
Yes. NPI 1700819117 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Allergy & Immunology Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (630) 574-0460.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Oak Brook Allergists Sc is a Type-2 organisational NPI.