Mark Sontag M.D.
About this NPIWhat this record shows.
NPI 1528060381 is registered to Mark Sontag M.D., a Anesthesiology practising at 1221 Whipple St in Eau Claire, Wisconsin. Anesthesiology is the medical specialty concerned with the perioperative care of patients before, during, and after surgery, including pain management. Mark Sontag M.D. has been enumerated in the National Provider Identifier (NPI) registry since 2005.
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
- 31423100WI
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 Mark Sontag M.D. accepts. To confirm in-network status with your specific health plan, contact Mark Sontag M.D. directly at (715) 838-3311.
Frequently asked
Yes. NPI 1528060381 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Anesthesiology is the medical specialty concerned with the perioperative care of patients before, during, and after surgery, including pain management.
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 (715) 838-3311.
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. Mark Sontag M.D. is a Type-1 individual NPI.