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Edit this profileAt a glance
- 94-050 Farrington Hwy, Suite B1-1, Waipahu, HI 96797
About Dr. Chang
Duane A. Chang, O.D. is an optometrist practicing in Waipahu, HI. Duane trained at Pacific University - College of Optometry, graduating in 1988. According to Medicare claims data, Duane cared for 211 Medicare patients across 214 services. The services billed most often include photography of the retina, established patient complete exam of visual system, and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more. This provider record is associated with NPI 1659318244.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (808) 677-1544
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
94-050 FARRINGTON HWY SUITE B1-1
Waipahu, HI 96797
Conditions Commonly Evaluated or Treated
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.
Conditions
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
- Blurry Vision
- Color Blindness
- Distorted Vision
- Double Vision
- Eye Floaters and Flashes
- Eye Strain
- Farsightedness
- Halos Around Lights
- Light Sensitivity
- Night Blindness
- Posterior vitreous detachment
- Tunnel Vision
- Visual Migraines
Procedures & services
Most searched procedures
Contact lens exams
- Bifocal or Multifocal Contact Lens Fitting
- Contact Lens Training
- Plano (Non-Prescription) Colored Contact Lens Exam
- Toric Contact Lens Fitting
Dry eye treatments
Examinations
- Comprehensive medical eye examination
- Diabetic Eye Exam
- DMV Vision Test
- Low Vision Assessment
- Pediatric Eye Exam
Eyelid care
Eyelid treatments
General exams
Glasses and eyewear
- Blue Light Glasses Consultation
- Eyeglass Frame Adjustment and Repair
- Prescription Sunglasses Consultation
- Prism Eyeglasses Fitting
Imaging & tests
- Color Vision Testing
- Corneal topography
- Coronary optical coherence tomography
- Eye-pressure measurement
- Pachymetry
- Retinal photography
- Visual Field Test
Imaging and scans
Minor procedures
Specialty lenses
Surgical evaluations
Tear duct procedures
Therapy
Urgent care
Vision correction
Procedures Most Often Billed to Medicare
214 services · 211 patients · 5 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Photography of the retina | Treatment | 92250 |
93 | More often than most peers in Optometrist |
| Established patient complete exam of visual system | Treatment | 92014 |
62 | As often as other peers in Optometrist |
| Imaging of retina | Treatment | 92134 |
21 | Less often than most peers in Optometrist |
| Imaging of optic nerve | Treatment | 92133 |
15 | Less often than most peers in Optometrist |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
23 | Less often than most peers in Optometrist |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other optometrists in Waipahu 8
Same specialty, same city.
Trained at Pacific University - College of Optometry 8
Other providers in the same specialty who trained at the same institution.
Class of 1988 at Pacific University - College of Optometry 8
Providers who graduated from the same medical school in the same year.
More connections — 8 related providers in 1 group
Also performs Photography of the retina 8
Providers in HI who bill this service to Medicare most often.
Common questions
What does Duane A. Chang specialize in?
Duane A. Chang is an optometrist in Waipahu, HI. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Duane A. Chang located?
Duane A. Chang is listed at 94-050 Farrington Hwy Suite B1-1, Waipahu, HI 96797. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Duane A. Chang's phone number?
The number on file is (808) 677-1544. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Duane A. Chang's NPI number?
Duane A. Chang's National Provider Identifier is 1659318244. 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
Where did Duane A. Chang train?
Duane A. Chang attended Pacific University - College of Optometry, graduating in 1988. This comes from the CMS National Downloadable File.
CMS public data
How long has Duane A. Chang been practicing?
Duane A. Chang has 38 years experience. Calculated from a graduation year of 1988, reported in the CMS National Downloadable File.
CMS public data
What does Duane A. Chang do most often?
According to Medicare billing data, Duane A. Chang provides treatments such as photography of the retina and established patient complete exam of visual system, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Duane A. Chang confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Duane A. Chang. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.