William Sybesma MD
About this NPIWhat this record shows.
NPI 1093798324 is registered to William Sybesma MD, a Otolaryngology Physician practising at 865 Mullen Dr in Fond Du Lac, Wisconsin. Otolaryngology Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. William Sybesma MD has been enumerated in the National Provider Identifier (NPI) registry since 2005.
Beyond the registryWhat this record adds.
This record carries 5 secondary identifiers beyond the base NPI: Medicaid and other payer cross-references used by billers and credentialers, which the standard CMS NPPES lookup does not surface. Within the directory it is one of 255 Otolaryngology Physician providers on file in Wisconsin.
Source: CMS NPPES and PECOS public files. snapshot, refreshed monthly.
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.
Other
- 040008752WI· Issued by RAILROAD MEDICARE
- 39080723648WI· Issued by UNITY
- WI0156WI· Issued by JOHN DEERE
- 12573WI· Issued by DEAN
Medicaid
- 30172100WI
Source: NPPES public registry.
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 Sybesma MD accepts. To confirm in-network status with your specific health plan, contact William Sybesma MD directly at (920) 744-8147.
Frequently asked
Yes. NPI 1093798324 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Otolaryngology Physician 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 (920) 744-8147.
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 Sybesma MD is a Type-1 individual NPI.
As of the latest monthly CMS NPPES snapshot, 255 Otolaryngology Physician providers are registered in Wisconsin, and William Sybesma MD is one of them. The figure refreshes each month from the federal source.