Lisa Guan, OD
NPI 1831403476 · Optometrist · Valencia, CA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lisa Guan, OD is a Optometrist provider in Valencia, CA (NPI 1831403476).
Provider details
- NPI number
- 1831403476
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Female
- Sole proprietor
- No
- License
- 14022 (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 tenure25% of score
15 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,219 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Ct Scan of Cornea92025 | 397 | $40 |
| Established Patient Complete Exam of Visual System92014 | 263 | $139 |
| Established Patient Problem Focused Exam of Visual System92012 | 116 | $99 |
| Microfluid Analysis of Tears83861 | 104 | $22 |
| Photography of the Retina92250 | 96 | $37 |
| Imaging of Retina92134 | 53 | $42 |
| Closure of Tear Duct Opening Using Plug68761 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 54 | 24 |
| Cyclosporinebrand: Restasis | 27 | 17 |
| Cyclosporine | 14 | — |
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth | 11 | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$459 across 15 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
- 2010-08-05
- Last updated
- 2017-09-13
Frequently asked questions
- What is Lisa Guan's NPI number?
- Lisa Guan's National Provider Identifier (NPI) is 1831403476, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lisa Guan's specialty?
- Lisa Guan is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Lisa Guan located?
- Lisa Guan's practice location on file with NPPES is 27420 Tourney Rd, Valencia, CA 91355-5601.
- What is Lisa Guan's phone number?
- The practice phone number listed in the NPPES registry for Lisa Guan is (661) 259-3937.
- Does Lisa Guan accept Medicare?
- Lisa Guan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lisa Guan's NPI active?
- Yes — Lisa Guan's NPI (1831403476) is active in the NPPES registry as of the last update on 2017-09-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.