William Underwood MD
About this NPIWhat this record shows.
NPI 1639120082 is registered to William Underwood MD, a Anesthesiology practising at Hwy 61s At Hwy 67 in Crystal City, Missouri. Anesthesiology is the medical specialty concerned with the perioperative care of patients before, during, and after surgery, including pain management. William Underwood MD 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.
Other
- 298156053MO· Issued by CDS
Medicaid
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 Underwood MD accepts. To confirm in-network status with your specific health plan, contact William Underwood MD directly at (636) 933-1000.
Frequently asked
Yes. NPI 1639120082 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 (636) 933-1000.
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 Underwood MD is a Type-1 individual NPI.