Jacob Kalliath D.O.
About this NPIWhat this record shows.
NPI 1134569395 is registered to Jacob Kalliath D.O., a Internal Medicine practising at 20201 Crawford Ave in Olympia Fields, Illinois. Internal Medicine physicians (internists) specialise in the prevention, diagnosis, and treatment of diseases in adults, often coordinating care across multiple subspecialties. Jacob Kalliath D.O. has been enumerated in the National Provider Identifier (NPI) registry since 2013.
Your brand here.
Medicare enrollment
This provider holds 4 Medicare enrollments 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
- I20160728000009Internal MedicineIL
- I20170119002900Internal MedicineWI
- I20170209000508Internal MedicineWA
- I20220721003387Internal MedicineAZ
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 Jacob Kalliath D.O. accepts. To confirm in-network status with your specific health plan, contact Jacob Kalliath D.O. directly at (708) 679-2160.
Frequently asked
Yes. NPI 1134569395 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 (708) 679-2160.
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. Jacob Kalliath D.O. is a Type-1 individual NPI.