Crystal Hung, M.D.
NPI 1265663520 · Ophthalmology Physician · Los Angeles, CA
Crystal Hung, M.D. is a Ophthalmology Physician provider in Los Angeles, CA (NPI 1265663520).
Provider details
- NPI number
- 1265663520
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A115667 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
16 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 293 | 117 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 272 | 109 |
| Dorzolamide/Timolol/Pfbrand: Dorzolamide-Timolol | 168 | 38 |
| Brimonidine Tartrate | 151 | 72 |
| Tafluprost/Pfbrand: Tafluprost | 142 | 36 |
| Latanoprostene Bunodbrand: Vyzulta | 84 | 21 |
| Timolol Maleate | 81 | 42 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$505 across 6 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-08-05
- Last updated
- 2021-12-21
Frequently asked questions
- What is Crystal Hung's NPI number?
- Crystal Hung's National Provider Identifier (NPI) is 1265663520, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Crystal Hung's specialty?
- Crystal Hung is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Crystal Hung located?
- Crystal Hung's practice location on file with NPPES is 100 Stein Plz, Los Angeles, CA 90095-7000.
- What is Crystal Hung's phone number?
- The practice phone number listed in the NPPES registry for Crystal Hung is (310) 825-4617.
- Is Crystal Hung's NPI active?
- Yes — Crystal Hung's NPI (1265663520) is active in the NPPES registry as of the last update on 2021-12-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.