Dr. Clark Williams MD
About this NPIWhat this record shows.
NPI 1710911417 is registered to Dr. Clark Williams MD, a Emergency Medicine practising at 507 S Monroe St in Lancaster, Wisconsin. Emergency Medicine is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Dr. Clark Williams MD has been enumerated in the National Provider Identifier (NPI) registry since 2006.
Your brand here.
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
- I20040207000168Emergency MedicineWI
- I20070521000078Emergency MedicineIA
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. Clark Williams MD accepts. To confirm in-network status with your specific health plan, contact Dr. Clark Williams MD directly at (608) 723-2143.
Frequently asked
Yes. NPI 1710911417 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Emergency Medicine 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 (608) 723-2143.
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. Clark Williams MD is a Type-1 individual NPI.