Dr. Sylvia Warren DO
Also known as
- Also known asDieffenbach, Sylvia
Source: NPPES public registry.
About this NPIWhat this record shows.
NPI 1992880918 is registered to Dr. Sylvia Warren DO, a General Practice practising at 11803 W North Ave in Wauwatosa, Wisconsin. General Practice is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Dr. Sylvia Warren DO 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
- 30062700WI
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 Dr. Sylvia Warren DO accepts. To confirm in-network status with your specific health plan, contact Dr. Sylvia Warren DO directly at (414) 258-5522.
Frequently asked
Yes. NPI 1992880918 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
General Practice 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 (414) 258-5522.
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. Sylvia Warren DO is a Type-1 individual NPI.