Gregory Mumm M.D.
About this NPIWhat this record shows.
NPI 1548228810 is registered to Gregory Mumm M.D., a Rheumatology Physician practising at 6100 S Louise Ave Ste 1130 in Sioux Falls, South Dakota. Rheumatology Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Gregory Mumm M.D. has been enumerated in the National Provider Identifier (NPI) registry since 2006.
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. It is enrolled in Medicare, linking to 1 PECOS enrollment record (with a public Medicare Enrollment ID) sourced from CMS, which the NPPES registry does not list. Within the directory it is one of 18 Rheumatology Physician providers on file in South Dakota.
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.
Medicaid
- 6632220SD
Source: NPPES public registry.
Medicare enrollment
This provider holds a Medicare enrollment on file with the Provider Enrollment, Chain and Ownership System (PECOS). Each enrollment carries a public Medicare Enrollment ID (ENRLMT_ID) used by billers and intermediaries.
Practitioner
- I20090810000624RheumatologySD
Source: CMS PECOS public enrollment file.
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 Gregory Mumm M.D. accepts. To confirm in-network status with your specific health plan, contact Gregory Mumm M.D. directly at (605) 504-1600.
Frequently asked
Yes. NPI 1548228810 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Rheumatology Physician 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 (605) 504-1600.
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. Gregory Mumm M.D. is a Type-1 individual NPI.
As of the latest monthly CMS NPPES snapshot, 18 Rheumatology Physician providers are registered in South Dakota, and Gregory Mumm M.D. is one of them. The figure refreshes each month from the federal source.