Mary Ann Sonsalla M.D.
About this NPIWhat this record shows.
NPI 1336112283 is registered to Mary Ann Sonsalla M.D., a Internal Medicine practising at Prohealth Care Medical Centers-Muskego, S69 W15636 Janesville Road in Muskego, Wisconsin. Internal Medicine physicians (internists) specialise in the prevention, diagnosis, and treatment of diseases in adults, often coordinating care across multiple subspecialties. Mary Ann Sonsalla M.D. 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
- 32538400WI
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 Mary Ann Sonsalla M.D. accepts. To confirm in-network status with your specific health plan, contact Mary Ann Sonsalla M.D. directly at (262) 928-7000.
Frequently asked
Yes. NPI 1336112283 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 (262) 928-7000.
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. Mary Ann Sonsalla M.D. is a Type-1 individual NPI.