John Downing OD PHD
About this NPIWhat this record shows.
NPI 1679639983 is registered to John Downing OD PHD, a Optometrist practising at 720 Grandview Rd in Sebastopol, California. Optometrist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. John Downing OD PHD has been enumerated in the National Provider Identifier (NPI) registry since 2006.
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
- 9841· Issued by PIN
Medicaid
- 0049810CA
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 John Downing OD PHD accepts. To confirm in-network status with your specific health plan, contact John Downing OD PHD directly at (707) 829-1478.
Frequently asked
Yes. NPI 1679639983 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Optometrist 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 (707) 829-1478.
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. John Downing OD PHD is a Type-1 individual NPI.