Stephen Yim, MD, LLC
About this NPIWhat this record shows.
NPI 1669515094 is registered to Stephen Yim, MD, LLC, a healthcare organisation classified as "Gynecologic Oncology" and located at 226 S Woods Mill Rd, Ste 55w in Chesterfield, Missouri. The organisation's authorised official is Rick Sonne. The organisation has been enumerated in the NPI registry since 2007.
Beyond the registryWhat this record adds.
This record carries 1 secondary identifier beyond the base NPI: Medicaid and other payer cross-references used by billers and credentialers, which the standard CMS NPPES lookup does not surface. Within the directory it is one of 50 Gynecologic Oncology providers on file in Missouri.
Source: CMS NPPES and PECOS public files. snapshot, refreshed monthly.
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
- D01028MO· Issued by RR MEDICARE
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 Stephen Yim, MD, LLC accepts. To confirm in-network status with your specific health plan, contact Stephen Yim, MD, LLC directly at (314) 469-4440.
Frequently asked
Yes. NPI 1669515094 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Gynecologic Oncology 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 (314) 469-4440.
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. Stephen Yim, MD, LLC is a Type-2 organisational NPI.
As of the latest monthly CMS NPPES snapshot, 50 Gynecologic Oncology providers are registered in Missouri, and Stephen Yim, MD, LLC is one of them. The figure refreshes each month from the federal source.