William Janss MD
About this NPIWhat this record shows.
NPI 1558377325 is registered to William Janss MD, a Internal Medicine practising at 221 N Kansas St, Ste. 1501 in El Paso, Texas. Internal Medicine physicians (internists) specialise in the prevention, diagnosis, and treatment of diseases in adults, often coordinating care across multiple subspecialties. William Janss MD has been enumerated in the National Provider Identifier (NPI) registry since 2006.
Your brand here.
Secondary identifiers
Additional identifiers this provider has registered with NPPES. Used by medical billers, credentialers, and insurance verifiers to cross-reference claims and enrollments.
Medicaid
Other
- P01251633TX· Issued by RAILROAD RETIREMENT MEDICARE
- 8DZ191TX· Issued by BC/BS OF TEXAS
Source: NPPES public registry.
Medicare enrollment
This provider holds 2 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
- I20060323000345HospitalistTX
- I20180802002330Internal MedicineWA
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 William Janss MD accepts. To confirm in-network status with your specific health plan, contact William Janss MD directly at (915) 546-9200.
Frequently asked
Yes. NPI 1558377325 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 (915) 546-9200.
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. William Janss MD is a Type-1 individual NPI.