Ronald St. Juliana O.D.
About this NPIWhat this record shows.
NPI 1740418656 is registered to Ronald St. Juliana O.D., a Optometrist practising at 1402 Butterfield Rd, Butterfield Plaza in Downers Grove, Illinois. Optometrist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Ronald St. Juliana O.D. has been enumerated in the National Provider Identifier (NPI) registry since 2009.
Your brand here.
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 Ronald St. Juliana O.D. accepts. To confirm in-network status with your specific health plan, contact Ronald St. Juliana O.D. directly at (630) 520-0049.
Frequently asked
Yes. NPI 1740418656 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 (630) 520-0049.
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. Ronald St. Juliana O.D. is a Type-1 individual NPI.