Dagny Zhu Luong M D Inc, Orange: NPI Registry Record and Eye Exam Cost Context
What the registry record says
- NPI number
- 1891645750
- Legal business name
- Dagny Zhu Luong M D Inc
- Primary registered specialty
- Ophthalmology, Cornea and External Diseases Specialist (207WX0120X)
- Other registered specialties
- Ophthalmology
- Practice location
- 1010 W La Veta Ave Ste 615
Orange, CA 92868-4310 - Phone on the record
- (714) 983-5001
- NPI issued
- January 30, 2026
- Record last updated by the practice
- May 20, 2026
- Registry status
- NPI registry record, active as reported by CMS October 2026
- Metro area
- Los Angeles-Long Beach-Anaheim, CA
- County
- Orange County
- Location precision
- Street address matched by the US Census geocoder
Reading this record
Beyond the primary code the record carries Ophthalmology, which is the registry's own signal that the practice covers more than routine work. The entry was refreshed in May 2026, putting it among the 325 of 1,876 Los Angeles-Long Beach-Anaheim records updated in 2024 or later, so the contact details are more likely to be current than most of this metro.
For local context: Orange holds 32 registered eye care practices in this snapshot, 17 of them optometry and 15 ophthalmology, in ZIP codes including 92868. 30 of them took an NPI before this practice did. The closest is Cs Ophthalmology in Orange, 0.1 miles away.
None of this is a licensing check. CMS issues an NPI so a provider can be identified in billing transactions, and states plainly that issuance does not ensure or validate that the holder is licensed or credentialed. The California boards hold the licensing record, and the practice itself is the only source for what it charges today.
Nearest registered practices
1,057 other registered eye care practices sit within 25 miles of this address, a radius that does not stop at the metro boundary. Inside the Los Angeles-Long Beach-Anaheim metro itself there are 1,876, 31 of them elsewhere in Orange. The closest 5 are below, measured straight line between registered addresses.
| Practice | City | Registered as | Distance | Phone on record |
|---|---|---|---|---|
| Cs Ophthalmology | Orange | Ophthalmology | 0.1 mi | (714) 289-2389 |
| Eyemax Vision Plan Inc | Orange | Optometry | 0.2 mi | (714) 571-4000 |
| Elham Zarabian OD PC | Orange | Optometry | 0.2 mi | (657) 391-8473 |
| Retina Specialists of Orange County, Inc. | Orange | Retina | 0.2 mi | (714) 738-4621 |
| Florencio C Ching MD Inc | Orange | Ophthalmology | 0.5 mi | (714) 633-0321 |
Distances are straight line between registered practice locations, not driving distance. Records placed at a ZIP centroid rather than a matched street address are excluded from this comparison.
What to expect to pay at an ophthalmology practice like this
The NPI registry holds no prices, so nothing here is a quote from Dagny Zhu Luong M D Inc, and ophthalmology practices do not publish fee schedules. Customers report paying $150 to $300 or more at this kind of practice without insurance, which is a reported band rather than a published price. The nearest published figure is $95, the median starting fee across the 1,280 US retail optical stores that print one (30 September 2026), and Medicare pays $149.64 for a comprehensive new-patient exam (CPT 92004). Ask Dagny Zhu Luong M D Inc for its self-pay price.
Ophthalmology visits are usually medical rather than routine, which changes who pays: medical insurance and Medicare Part B cover a medically necessary exam, while a routine refraction for glasses is normally not covered. Ask whether the visit will be billed as medical or routine before you book, and compare with the 1,249 optometry practices on the Los Angeles-Long Beach-Anaheim page if you only need a prescription.