Lilian Thoi, OD
NPI 1740804798 · Optometrist · Gallup, NM
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lilian Thoi, OD is a Optometrist provider in Gallup, NM (NPI 1740804798).
Provider details
- NPI number
- 1740804798
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Female
- Sole proprietor
- No
- License
- 11824443-9934 (UT)
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
6 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
433 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 Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 67 | $63 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 60 | $63 |
| Established Patient Complete Exam of Visual System92014 | 37 | $71 |
| Established Patient Complete Exam of Visual System92014 | 37 | $71 |
| Imaging of Retina92134 | 32 | $23 |
| Imaging of Retina92134 | 30 | $23 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 62 | 29 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 29 | 14 |
| Brimonidine Tartrate | 17 | — |
| Timolol Maleate | 17 | — |
| Prednisolone Acetate | 15 | — |
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-06-05
- Last updated
- 2021-05-29
- Certified
- 2021-05-29
Frequently asked questions
- What is Lilian Thoi's NPI number?
- Lilian Thoi's National Provider Identifier (NPI) is 1740804798, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lilian Thoi's specialty?
- Lilian Thoi is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Lilian Thoi located?
- Lilian Thoi's practice location on file with NPPES is 516 E Nizhoni Blvd, Gallup, NM 87301-5748.
- What is Lilian Thoi's phone number?
- The practice phone number listed in the NPPES registry for Lilian Thoi is (505) 722-1000.
- Does Lilian Thoi accept Medicare?
- Lilian Thoi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lilian Thoi's NPI active?
- Yes — Lilian Thoi's NPI (1740804798) is active in the NPPES registry as of the last update on 2021-05-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.