Provider Profile
Diana F. Penuela-O'Neill, O.D. practices optometry in Algonquin, IL. Diana is a 1986 graduate of Illinois College of Optometry at Chicago. Diana is also listed as specializing in optometrist. According to Medicare claims data, Diana cared for 78 Medicare patients across 89 services. The services billed most often include established patient complete exam of visual system, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and imaging of retina. The provider's National Provider Identifier (NPI) is 1366559502.
Factual summary compiled by Guide.md from public records; not written by this provider.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
245 STONEGATE RD
Algonquin, IL 60102
Within Optometry generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Contact lens issues
Cornea conditions
Corneal issues
Eye conditions
Eye discomfort
Eye diseases
Eye infections
Eye inflammation
Eye injuries
Eye irritation
Eye surface issues
Eyelid conditions
Eyelid issues
Pediatric eye conditions
Pupil issues
Tear duct issues
Vision changes
Most searched procedures
Contact lens exams
Dry eye treatments
Examinations
Eyelid care
Eyelid treatments
General exams
Glasses and eyewear
Imaging & tests
Imaging and scans
Minor procedures
Specialty lenses
Surgical evaluations
Tear duct procedures
Therapy
Urgent care
Vision correction
89 services · 78 patients · 4 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Established patient complete exam of visual system | Treatment | 92014 |
33 | Less often than most peers in Optometry |
| Imaging of retina | Treatment | 92134 |
19 | Less often than most peers in Optometry |
| Exam of visual field with extended testing | Treatment | 92083 |
13 | Less often than most peers in Optometry |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
24 | Less often than most peers in Optometry |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Diana F. Penuela-O'Neill is an optometry in Algonquin, IL. That is the designation recorded for this NPI in the federal registry.
NPI registry
Diana F. Penuela-O'Neill is listed at 245 Stonegate Rd, Algonquin, IL 60102. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (847) 658-0120. Contact the office directly to confirm availability and scheduling.
NPI registry
Diana F. Penuela-O'Neill's National Provider Identifier is 1366559502. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Diana F. Penuela-O'Neill attended Illinois College of Optometry at Chicago, graduating in 1986. This comes from the CMS National Downloadable File.
CMS public data
Diana F. Penuela-O'Neill has 40 years experience. Calculated from a graduation year of 1986, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Diana F. Penuela-O'Neill provides treatments such as established patient complete exam of visual system and imaging of retina, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Diana F. Penuela-O'Neill. If this is you, claiming it is free.
Guide.md
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