Timothy Cahill D.O.
About this NPIWhat this record shows.
NPI 1578569505 is registered to Timothy Cahill D.O., a Internal Medicine practising at 150 N River Rd, Ste 210 in Des Plaines, Illinois. Internal Medicine physicians (internists) specialise in the prevention, diagnosis, and treatment of diseases in adults, often coordinating care across multiple subspecialties. Timothy Cahill D.O. has been enumerated in the National Provider Identifier (NPI) registry since 2005.
Beyond the registryWhat this record adds.
It is enrolled in Medicare, linking to 1 PECOS enrollment record (with a public Medicare Enrollment ID) sourced from CMS, which the NPPES registry does not list. Within the directory it is one of 9,046 Internal Medicine providers on file in Illinois.
Source: CMS NPPES and PECOS public files. snapshot, refreshed monthly.
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.
Practitioner
- I20080722000094Internal MedicineIL
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 Timothy Cahill D.O. accepts. To confirm in-network status with your specific health plan, contact Timothy Cahill D.O. directly at (847) 759-4060.
Frequently asked
Yes. NPI 1578569505 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Internal Medicine physicians (internists) specialise in the prevention, diagnosis, and treatment of diseases in adults, often coordinating care across multiple subspecialties.
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 (847) 759-4060.
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. Timothy Cahill D.O. is a Type-1 individual NPI.
As of the latest monthly CMS NPPES snapshot, 9,046 Internal Medicine providers are registered in Illinois, and Timothy Cahill D.O. is one of them. The figure refreshes each month from the federal source.