William Leach M.D.
About this NPIWhat this record shows.
NPI 1124013891 is registered to William Leach M.D., a Pediatrics practising at 10909 W Bluemound Rd in Milwaukee, Wisconsin. Pediatrics is the medical specialty focused on the health of infants, children, and adolescents through age 21. William Leach M.D. has been enumerated in the National Provider Identifier (NPI) registry since 2005.
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
- 30018700WI
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
- I20090709000701Pediatric MedicineWI
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 Leach M.D. accepts. To confirm in-network status with your specific health plan, contact William Leach M.D. directly at (414) 258-0606.
Frequently asked
Yes. NPI 1124013891 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Pediatrics is the medical specialty focused on the health of infants, children, and adolescents through age 21.
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 (414) 258-0606.
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 Leach M.D. is a Type-1 individual NPI.