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Ronald St. Juliana, O.D.
NPI 1740418656 · Optometrist · Downers Grove, IL
Ronald St. Juliana, O.D. is a Optometrist provider in Downers Grove, IL (NPI 1740418656).
Provider details
- NPI number
- 1740418656
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 046006575 (IL)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
Detailed profile(86/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
1402 Butterfield Rd
Butterfield Plaza
Downers Grove, IL 60515-1031
Phone: (630) 520-0049
Street-level locationGet directions
Mailing address
30 W 075 Willow Lane
Warrenville, IL 60555
Registry dates
- Enumerated
- 2009-06-30
- Last updated
- 2009-06-30
Frequently asked questions
- What is Ronald St. Juliana's NPI number?
- Ronald St. Juliana's National Provider Identifier (NPI) is 1740418656, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ronald St. Juliana's specialty?
- Ronald St. Juliana is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Ronald St. Juliana located?
- Ronald St. Juliana's practice location on file with NPPES is 1402 Butterfield Rd, Downers Grove, IL 60515-1031.
- What is Ronald St. Juliana's phone number?
- The practice phone number listed in the NPPES registry for Ronald St. Juliana is (630) 520-0049.
- Is Ronald St. Juliana's NPI active?
- Yes — Ronald St. Juliana's NPI (1740418656) is active in the NPPES registry as of the last update on 2009-06-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.