Nancy Luu
NPI 1841586849 · Optometrist · Hayward, CA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nancy Luu is a Optometrist provider in Hayward, CA (NPI 1841586849).
Provider details
- NPI number
- 1841586849
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 14210 (CA)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
14 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
360 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Complete Exam of Visual System92014 | 88 | $157 |
| Photography of the Retina92250 | 87 | $44 |
| Photography of Content of Eyes92285 | 53 | $30 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 53 | $197 |
| Exam of Visual Field With Extended Testing92083 | 44 | $82 |
| Established Patient Problem Focused Exam of Visual System92012 | 35 | $112 |
Typical Medicare-allowed amounts for these services range $30–$197 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-06-28
- Last updated
- 2011-06-28
Frequently asked questions
- What is Nancy Luu's NPI number?
- Nancy Luu's National Provider Identifier (NPI) is 1841586849, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nancy Luu's specialty?
- Nancy Luu is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Nancy Luu located?
- Nancy Luu's practice location on file with NPPES is 865 B St, Hayward, CA 94541-5107.
- What is Nancy Luu's phone number?
- The practice phone number listed in the NPPES registry for Nancy Luu is (510) 733-3105.
- Does Nancy Luu accept Medicare?
- Nancy Luu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nancy Luu's NPI active?
- Yes — Nancy Luu's NPI (1841586849) is active in the NPPES registry as of the last update on 2011-06-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.