Dr. John Ondrejka MD
About this NPIWhat this record shows.
NPI 1770543159 is registered to Dr. John Ondrejka MD, a Internal Medicine practising at 7956 Tyler Blvd in Mentor, Ohio. Internal Medicine physicians (internists) specialise in the prevention, diagnosis, and treatment of diseases in adults, often coordinating care across multiple subspecialties. Dr. John Ondrejka MD has been enumerated in the National Provider Identifier (NPI) registry since 2006.
Secondary identifiers
Additional identifiers this provider has registered with NPPES. Used by medical billers, credentialers, and insurance verifiers to cross-reference claims and enrollments.
Other
- 6600162OH· Issued by UNITED HEALTHCARE
- 80507OH· Issued by QUALCHOICE
- 000000339419OH· Issued by ANTHEM
- 264200000OH· Issued by DEPT OF LABOR
- 341425870042OH· Issued by MEDICAL MUTUAL OF OHIO
- 264200000OH· Issued by FEDERAL BLACK LUNG
Medicaid
- 2073581OH
Source: NPPES public registry.
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
- I20040625000583Internal MedicineOH
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 Dr. John Ondrejka MD accepts. To confirm in-network status with your specific health plan, contact Dr. John Ondrejka MD directly at (440) 716-1283.
Frequently asked
Yes. NPI 1770543159 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 (440) 716-1283.
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. Dr. John Ondrejka MD is a Type-1 individual NPI.