Dr. Grant Barnum D.O.
About this NPIWhat this record shows.
NPI 1639178445 is registered to Dr. Grant Barnum D.O., a Geriatric Medicine (Internal Medicine) Physician practising at 1870 Bagnell Dam Blvd in Lake Ozark, Missouri. Geriatric Medicine (Internal Medicine) Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Dr. Grant Barnum D.O. 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
Other
- P00303899MO· Issued by RAILROAD 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 Dr. Grant Barnum D.O. accepts. To confirm in-network status with your specific health plan, contact Dr. Grant Barnum D.O. directly at (573) 365-2318.
Frequently asked
Yes. NPI 1639178445 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Geriatric Medicine (Internal Medicine) 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 (573) 365-2318.
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. Dr. Grant Barnum D.O. is a Type-1 individual NPI.